Cover image for Vol. 8 Issue 14

Early View (Online Version of Record published before inclusion in an issue)

Editor-in-Chief: Guido Kemeling; Editorial Board Chairs: Matthias Beller, Gabriele Centi, Licheng Sun

Impact Factor: 7.657

ISI Journal Citation Reports © Ranking: 2014: 18/157 (Chemistry Multidisciplinary)

Online ISSN: 1864-564X

Associated Title(s): Angewandte Chemie International Edition, Chemistry - A European Journal, Chemistry – An Asian Journal, ChemCatChem, ChemElectroChem, ChemPhysChem, Energy Technology


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  1. Full Papers

    1. Direct Production of 5-Hydroxymethylfurfural via Catalytic Conversion of Simple and Complex Sugars over Phosphated TiO2

      Luqman Atanda, Dr. Abhijit Shrotri, Swathi Mukundan, Dr. Qing Ma, Dr. Muxina Konarova and Dr. Jorge Beltramini

      Article first published online: 3 AUG 2015 | DOI: 10.1002/cssc.201500395

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      A matter of phases: The potential of sustainable HMF production from cellulosic biomass is demonstrated in this article. Phosphated TiO2 effectively catalyzes the conversion of sugars to HMF in a biphasic reactor. In addition, selective formation of HMF is enhanced by adding an aqueous-phase modifier to the biphasic medium. Under both batch and continuous flow conditions, direct conversion of pretreated cellulose to HMF is achievable.

    2. Carbazole Dye-Sensitized Solar Cells Studied from Femtoseconds to Seconds—Effect of Additives in Cobalt- and Iodide-Based Electrolytes

      Jan Sobuś, Dr. Jacek Kubicki, Dr. Gotard Burdziński and Dr. Marcin Ziółek

      Article first published online: 3 AUG 2015 | DOI: 10.1002/cssc.201500628

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      A matter of time: Solar cells sensitized with one of the most promising and efficient carbazole dyes are studied using a number of complex techniques (from ultrafast and fast laser spectroscopy to electrochemical impedance measurements) to provide information about partial charge separation processes occurring from femtoseconds to seconds in complete devices. The observed features have a direct impact on the performance of the solar cells, and therefore are crucial for the construction of more efficient devices.

  2. Cover Profiles

    1. Reduction of Charge and Discharge Polarization by Cobalt Nanoparticles-Embedded Carbon Nanofibers for Li–O2 Batteries

      Yun-Jung Kim, Hongkyung Lee, Dr. Dong Jin Lee, Prof. Jung-Ki Park and Prof. Hee-Tak Kim

      Article first published online: 31 JUL 2015 | DOI: 10.1002/cssc.201500924

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      “The cover was designed to visualize a moment prior to the oxygen reduction reaction on the Co–CNF electrode…” This and more about the story behind the research that inspired the Cover image is presented in the Cover Profile. More details can be found in the Full Paper by Kim et al.: 10.1002/cssc.201500520. View the Front Cover here: 10.1002/cssc.201500923.

  3. Cover Pictures

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      Titanium(IV) in the Organic-Structure-Directing-Agent-Free Synthesis of Hydrophobic and Large-Pore Molecular Sieves as Redox Catalysts

      Dr. Jingui Wang, Prof. Dr. Toshiyuki Yokoi, Prof. Dr. Junko N. Kondo, Prof. Dr. Takashi Tatsumi and Prof. Dr. Yanli Zhao

      Article first published online: 31 JUL 2015 | DOI: 10.1002/cssc.201500857

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      The Back Cover picture shows two different synthetic routes to prepare microporous titanosilicate molecular sieves. One is a traditional route that requires expensive organic molecules used as organic structure-directing agents (OSDA, right), whereas the other one is a newly developed OSDA-free route that does not require any organic molecules (left). The absence of an organic template in the synthesis could avoid environmental problems as pyrolysis of the organic template in the traditional route generates toxic gases such as CO2 and NOx. Moreover, titanosilicate molecular sieves prepared using the OSDA-free route show considerably higher catalytic activity for the epoxidation of bulky cyclooctene with H2O2. More details can be found in the Communication by Wang et al. (DOI: 10.1002/cssc.201500443).

  4. Communications

    1. Substituted Phthalic Anhydrides from Biobased Furanics: A New Approach to Renewable Aromatics

      Dr. Shanmugam Thiyagarajan, Dr. Homer C. Genuino, Dr. Michał Śliwa, Dr. Jan C. van der Waal, Dr. Ed de Jong, Dr. Jacco van Haveren, Prof. Dr. Bert M. Weckhuysen, Dr. Pieter C. A. Bruijnincx and Dr. Daan S. van Es

      Article first published online: 31 JUL 2015 | DOI: 10.1002/cssc.201500511

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      Er zit een Aldertje onder het gras: The classical two-step approach to furanics-derived aromatics, via Diels–Alder (DA) aromatization, is modified into a three-step procedure to avoid retro-DA reactions. The new sequence involves a mild hydrogenation step to obtain a stable oxanorbornane intermediate. Subsequent dehydration and dehydrogenation using a physical mixture of acidic zeolites or resins in combination with metal on a carbon support then gives high yields of aromatics under relatively mild conditions.

  5. Reviews

    1. In Situ Powder Diffraction Studies of Electrode Materials in Rechargeable Batteries

      Dr. Neeraj Sharma, Dr. Wei Kong Pang, Prof. Zaiping Guo and Dr. Vanessa K. Peterson

      Article first published online: 29 JUL 2015 | DOI: 10.1002/cssc.201500152

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      Under observation: The importance of structure–property relationships to understand battery function, why in situ experimentation is critical to this, and the types of experiments and electrochemical cells required to obtain such information are described.

  6. Communications

    1. Gold-Catalyzed Reductive Transformation of Nitro Compounds Using Formic Acid: Mild, Efficient, and Versatile

      Lei Yu, Qi Zhang, Shu-Shuang Li, Dr. Jun Huang, Dr. Yong-Mei Liu, Dr. He-Yong He and Prof. Dr. Yong Cao

      Article first published online: 29 JUL 2015 | DOI: 10.1002/cssc.201500869

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      Renewable formic acid as a flexible feedstock: A versatile heterogeneous gold-based catalytic system has been developed for the controlled, flexible, and target-specific reductive transformation of nitro compounds using stoichiometric equivalents of formic acid as a key starting material under mild and convenient conditions. The overall operational simplicity, high chemoselectivity, functional-group tolerance, and reusability of the catalyst make this approach an attractive and reliable tool for organic and process chemists.

  7. Full Papers

    1. Nanostructured Double Perovskite Cathode With Low Sintering Temperature For Intermediate Temperature Solid Oxide Fuel Cells

      Seona Kim, Areum Jun, Ohhun Kwon, Junyoung Kim, Dr. Seonyoung Yoo, Prof. Hu Young Jeong, Prof. Jeeyoung Shin and Prof. Guntae Kim

      Article first published online: 28 JUL 2015 | DOI: 10.1002/cssc.201500509

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      Sinter and structure: We report the engineering of a nanostructured double perovskite cathode for intermediate temperature solid oxide fuel cells by using an infiltration method and careful control of the sintering temperature. The study focuses on the reduction of the cathode polarization resistance through the use of mixed ionic electronic conductors and the optimization of cathode microstructure to increase the number of electrochemically active sites.

  8. Communications

    1. Cellulose Dissolution and In Situ Grafting in a Reversible System using an Organocatalyst and Carbon Dioxide

      Longchu Song, Yunlong Yang, Prof. Haibo Xie and Prof. Enhui Liu

      Article first published online: 28 JUL 2015 | DOI: 10.1002/cssc.201500378

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      Be flexible: Cellulose is a promising renewable material, but is difficult to process owing to the stiffness of the molecules and the dense packing of its chains. Reacting cellulose with carbon dioxide in the presence of DBU as organocatalyst and subsequent grafting of L-lactide (LLA) by ring-opening polymerization (ROP) leads to cellulose-graft-poly(L-lactide) co-polymers with tunable glass-transition temperatures, efficiently transforming the originally semirigid cellulose into thermoplastic materials.

  9. Full Papers

    1. Rational Design of a Hierarchical Tin Dendrite Electrode for Efficient Electrochemical Reduction of CO2

      Da Hye Won, Dr. Chang Hyuck Choi, Jaehoon Chung, Min Wook Chung, Eun-Hee Kim and Prof. Seong Ihl Woo

      Article first published online: 27 JUL 2015 | DOI: 10.1002/cssc.201500694

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      Not exactly what it says on the tin: Rational design principles for tin electrodes to be used in selective CO2 reduction to formate are suggested using hierarchical tin dendrite electrodes (multi-branched conifer-like structure) that show remarkable activity and stability. The initial oxygen content of the tin electrode is set as “selectivity descriptor” and the architecture is manipulated to maximize the number of active sites.

    2. Mechanochemically Reduced SiO2 by Ti Incorporation as Lithium Storage Materials

      Kyungbae Kim, Janghyuk Moon, Jaewoo Lee, Dr. Ji-Sang Yu, Prof. Maenghyo Cho, Prof. Kyeongjae Cho, Dr. Min-Sik Park, Prof. Jae-Hun Kim and Dr. Young-Jun Kim

      Article first published online: 24 JUL 2015 | DOI: 10.1002/cssc.201500638

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      Taking charge! A mechanochemically reduced SiO2−x/TiO2−x composite is designed by thermodynamic calculations and synthesized by high-energy mechanical milling as a promising anode material for lithium-ion batteries. By incorporation of Ti, amorphous SiO2 can be effectively reduced during the synthesis, leading to the in situ formation of a SiO2−x/TiOx composite that shows a high reversible capacity with excellent cycle performance.

    3. Activation Effect of Fullerene C60 on the Carbon Dioxide Absorption Performance of Amine-Rich Polypropylenimine Dendrimers

      Dr. Enrico Andreoli  and Prof. Andrew R. Barron 

      Article first published online: 24 JUL 2015 | DOI: 10.1002/cssc.201500605

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      Favoring accessibility: The addition of fullerene C60 to polypropylenimine (PPI) dendrimers to form PPI–C60 cross-linked composites results in a reduction of the energy activation barrier of CO2 absorption. This finding supports the existence of a nonaffinity “repulsive” effect between hydrophobic C60 and hydrophilic amines that forces the latter to spread out and be actively exposed to CO2.

  10. Cover Pictures

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      Catalytic Production of Branched Small Alkanes from Biohydrocarbons

      Shin-ichi Oya, Daisuke Kanno, Dr. Hideo Watanabe, Dr. Masazumi Tamura, Dr. Yoshinao Nakagawa and Prof. Dr. Keiichi Tomishige

      Article first published online: 24 JUL 2015 | DOI: 10.1002/cssc.201500925

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      The Inside Cover picture shows the production of high-quality transportation fuels from squalene, which is a typical algal hydrocarbon. The key step is the selective C[BOND]C dissociation at internal secondary-secondary bonds over ceria-supported sub-nanometer-sized Ru particles with hydrogen. This catalytic process preferably gives branched alkanes with very simple distribution. More details can be found in theCommunication by Oya et al. (DOI: 10.1002/cssc.201500375).

    2. You have free access to this content
      Reduction of Charge and Discharge Polarization by Cobalt Nanoparticles-Embedded Carbon Nanofibers for Li–O2 Batteries

      Yun-Jung Kim, Hongkyung Lee, Dr. Dong Jin Lee, Prof. Jung-Ki Park and Prof. Hee-Tak Kim

      Article first published online: 24 JUL 2015 | DOI: 10.1002/cssc.201500923

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      The Cover picture shows a possible solution to the low round-trip efficiencies of Li–O2 batteries (the most promising next-generation battery) owed to the poor reversibility of the formation of the discharge product Li2O2 and the associated high polarization potentials. This can be achieved by controlling the phase structure and morphology of Li2O2. By embedding Co nanoparticles in carbon nanofibers, a uniform film-like amorphous Li2O2 is formed and both the charge and discharge overpotentials are decreased. More details can be found in the Full Paper by Kim et al. (DOI: 10.1002/cssc.201500520).

  11. Full Papers

    1. Electrolytes Ageing in Lithium-ion Batteries: A Mechanistic Study from Picosecond to Long Timescales

      Dr. Daniel Ortiz, Dr. Isabel Jiménez Gordon, Jean-Pierre Baltaze, Dr. Oscar Hernandez-Alba, Solène Legand, Vincent Dauvois, Dr. Gregory Si Larbi, Dr. Uli Schmidhammer, Dr. Jean-Louis Marignier, Dr. Jean-Frédéric Martin, Prof. Jacqueline Belloni, Prof. Mehran Mostafavi and Dr. Sophie Le Caër

      Article first published online: 23 JUL 2015 | DOI: 10.1002/cssc.201500641

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      Accelerated Ageing! Radiolysis is used as a tool to study the ageing phenomena occurring in various diethyl carbonate/LiPF6 solutions. The degradation products obtained by radiolysis are similar to the ones occurring in electrolysis of Li-ion batteries (LIBs) (see scheme). The research validates the use of steady-state and pulse radiolysis as tools to quickly investigate the reactivity of newly developed electrolytes.

    2. Effect of Mesoporous Structured Cathode Materials on Charging Potentials and Rate Capability of Lithium–Oxygen Batteries

      Jihee Park, Jooyoung Jeong, Seonggyu Lee, Changshin Jo and Prof. Jinwoo Lee

      Article first published online: 23 JUL 2015 | DOI: 10.1002/cssc.201500534

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      Pore some more: Mesoporous carbon materials (i.e., CMK-3 and MSU-F-C) are used in Li–O2 batteries to examine their effect on the morphology of the discharge products and to improve the discharge capacities and polarization of cycling. Large interconnected pores also increase the rate capabilities of the cells. These results demonstrate that control of the porous structure of the cathode is needed to improve the performance of Li–O2 batteries.

  12. Communications

    1. Upgrading Lignocellulosic Products to Drop-In Biofuels via Dehydrogenative Cross-Coupling and Hydrodeoxygenation Sequence

      Dr. Sanil Sreekumar, Dr. Madhesan Balakrishnan, Konstantinos Goulas, Dr. Gorkem Gunbas, Dr. Amit A. Gokhale, Lin Louie, Adam Grippo, Dr. Corinne D. Scown, Prof. Alexis T. Bell and Prof.  F. Dean Toste

      Article first published online: 21 JUL 2015 | DOI: 10.1002/cssc.201500754

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      Drop into renewable diesel: Dehydrogenative cross-condensation of lignocellulosic furfural with a variety of alcohols derived from biological and petrochemical sources provides aldol adducts that are further subjected to hydrodeoxygenation. The alkanes furnished from this process are drop-in components for jet and diesel fuels. The life cycle assessment of this technology shows net reductions in greenhouse gas (GHG) emissions of 57–68 % relative to petroleum-derived fuels.

  13. Full Papers

    1. Gas Transfer Controls Carbon Limitation During Biomass Production by Marine Microalgae

      Dr. Bojan Tamburic, Dr. Christian R. Evenhuis, Dr. David J. Suggett, Prof. Anthony W. D. Larkum, Prof. John A. Raven and Prof. Peter J. Ralph

      Article first published online: 21 JUL 2015 | DOI: 10.1002/cssc.201500332

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      Just grow it: We present the first in-depth analysis of CO2 limitation on biomass productivity of the marine microalga Nannochloropsis oculata. Net photosynthesis decreases by 60 % over a 12 h light cycle as a direct result of carbon limitation. Continuous dissolved O2 and pH measurements are used to develop a detailed diurnal mechanism for the interaction between photosynthesis, gas exchange and carbonate chemistry in the photo-bioreactor.

  14. Communications

    1. Selective Deposition of Insulating Metal Oxide in Perovskite Solar Cells with Enhanced Device Performance

      Dr. Youfeng Yue, Dr. Xudong Yang, Dr. Yongzhen Wu, Dr. Noviana Tjitra Salim, Dr. Ashraful Islam, Dr. Takeshi Noda and Prof. Dr. Liyuan Han

      Article first published online: 21 JUL 2015 | DOI: 10.1002/cssc.201500518

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      Isolating and conducting: A quasi-top-open insulating metal oxide overlayer is deposited on a nanoparticulate TiO2 (np-TiO2) layer for perovskite solar cells. This insulating hole-blocking layer mainly covers the bottom part of the mesoporous layer with less coverage at the top to keep sufficient electron conduction within the perovskite film. It effectively prevents charge recombination, giving rise to an open-circuit voltage that is higher for a cell without this layer.

  15. Highlights

    1. Synergistic Carbon Dioxide Capture and Conversion in Porous Materials

      Dr. Yugen Zhang and Dr. Diane S. W. Lim

      Article first published online: 20 JUL 2015 | DOI: 10.1002/cssc.201500745

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      And when we are together: Global climate change and excessive CO2 emissions have caused widespread public concern in recent years. Tremendous efforts have been made towards CO2 capture and conversion. However, realizing the attractive prospect of direct, in situ chemical conversion of captured CO2 into other chemicals remains a challenge. This Highlight showcases some recent successful, examples.

  16. Full Papers

    1. Li-Metal-Free Prelithiation of Si-Based Negative Electrodes for Full Li-Ion Batteries

      Dr. Haitao Zhou, Xuehang Wang and Prof. De Chen

      Article first published online: 20 JUL 2015 | DOI: 10.1002/cssc.201500287

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      An aqueous solution: The principle for a Li-metal-free prelithiation method for a binder-free Si-based electrode is presented. This is the first report of the whole process of making a full Li-ion battery with both Li-deficient electrodes (MnOx or S paired with prelithiated Si) from Li-containing aqueous solution without the use of Li metal.

    2. Controlled Silylation of Nanofibrillated Cellulose in Water: Reinforcement of a Model Polydimethylsiloxane Network

      Dr. Zheng Zhang, Dr. Philippe Tingaut, Dr. Daniel Rentsch, Dr. Tanja Zimmermann and Dr. Gilles Sèbe

      Article first published online: 20 JUL 2015 | DOI: 10.1002/cssc.201500525

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      Silylation causing elation: An efficient method for the surface silylation of nanofibrillated cellulose is proposed through an environmentally friendly sol–gel route in water. Under a controlled set of conditions, a highly hydrophobic scaffold of cellulosic fibrils coated by a polysiloxane layer is prepared and used as a reinforcing agent in a model polydimethylsiloxane network.

    3. Enhanced Performance of “Flower-like” Li4Ti5O12 Motifs as Anode Materials for High-Rate Lithium-Ion Batteries

      Lei Wang, Yiman Zhang, Megan E. Scofield, Shiyu Yue, Coray McBean, Dr. Amy C. Marschilok, Dr. Kenneth J. Takeuchi, Dr. Esther S. Takeuchi and Dr. Stanislaus S. Wong

      Article first published online: 20 JUL 2015 | DOI: 10.1002/cssc.201500639

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      Stop and smell the flowers: 3 D hierarchical flower-shape Li4Ti5O12 motifs are synthesized by using a facile and rapid hydrothermal process involving short reaction times, relatively low reaction temperatures, and reusable and recyclable Ti precursors. The resulting Li4Ti5O12 electrodes exhibit remarkably high rate capability and cycling stability as compared with analogous, previously reported motifs.

    4. Synthesis of Cyclic Carbonates from Epoxides and Carbon Dioxide by Using Bifunctional One-Component Phosphorus-Based Organocatalysts

      Hendrik Büttner, Johannes Steinbauer and Dr. Thomas Werner

      Article first published online: 17 JUL 2015 | DOI: 10.1002/cssc.201500612

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      Two heads are better than one! Bifunctional organocatalysts are synthesized and tested in the catalytic reaction of epoxides and carbon dioxide to give the respective cyclic carbonates. Product formation is significantly increased by hydrogen-bond donation from the bifunctional phosphonium catalyst.

  17. Communications

    1. Enhanced Charge Transport in Tantalum Nitride Nanotube Photoanodes for Solar Water Splitting

      Dr. Lei Wang, Nhat Truong Nguyen, Xuemei Zhou, Imgon Hwang, Dr. Manuela S. Killian and Prof. Dr. Patrik Schmuki

      Article first published online: 17 JUL 2015 | DOI: 10.1002/cssc.201500632

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      Catching a Ta3N5: Layers of Ta3N5 nanotubes grown by a two-step anodization process show not only improved order and enhanced overall light absorption in the nanotube layers, but also provide a significantly reduced interface charge resistance at the nitride/metal interface due to subnitride (TaNx) formation. Such nanotube anodes afford a 15-fold increase of the photocurrent compared with conventional nanotubular tantalum nitride electrodes under simulated sunlight conditions.

  18. Full Papers

    1. Engineering Transition-Metal-Coated Tungsten Carbides for Efficient and Selective Electrochemical Reduction of CO2 to Methane

      Sippakorn Wannakao, Dr. Nongnuch Artrith, Prof. Jumras Limtrakul and Prof. Alexie M. Kolpak

      Article first published online: 17 JUL 2015 | DOI: 10.1002/cssc.201500245

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      Finding the right direction: The mechanism of CO2 reduction to CH4 on tungsten carbide (WC) and on WC surfaces doped with transition metal (TM) atoms was investigated. Directional bonding arising from the mixed covalent/metallic character plays a critical role in the surface chemistry. An extended d-band model that can explain both site-preference and binding-energy trends is proposed.

    2. Fade to Green: A Biodegradable Stack of Microbial Fuel Cells

      Dr. Jonathan Winfield, Dr. Lily D. Chambers, Dr. Jonathan Rossiter, Andrew Stinchcombe, Dr.  X. Alexis Walter, Prof. John Greenman and Prof. Ioannis Ieropoulos

      Article first published online: 16 JUL 2015 | DOI: 10.1002/cssc.201500431

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      Green power: A truly green electronic system should have a green power source such as microbial fuel cells (MFCs). Conventionally, MFCs are built using materials that will have an ecological impact at remote places. We report for the first time a stack of biodegradable MFCs constructed using natural materials for the chassis, electrodes and membranes. Sufficient power is produced to energise real applications. Such systems could biodegrade harmlessly into the environment once their mission is complete.

  19. Communications

    1. Biochemical Capacitance of Geobacter Sulfurreducens Biofilms

      Prof. Paulo R. Bueno, Germán D. Schrott, Pablo S. Bonanni, Dr. Silvia N. Simison and Dr. Juan P. Busalmen

      Article first published online: 16 JUL 2015 | DOI: 10.1002/cssc.201403443

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      A tale of capacitance and biofilms: A capacitance-based model of Geobacter sulfurreducens biofilms is presented, where the respiratory gradient of the biological population is taken into account. Essentially, the model is able to decouple the electron conduction pathways from the impedance terms of microbial cell machinery. Thus, capacitance characteristics of the respiratory process of biofilms can be clearly resolved and matched with experimental results.

  20. Full Papers

    1. Pharmaceuticals and Surfactants from Alga-Derived Feedstock: Amidation of Fatty Acids and Their Derivatives with Amino Alcohols

      Anastasia Tkacheva, Inkar Dosmagambetova, Yann Chapellier, Dr. Päivi Mäki-Arvela, Imane Hachemi, Dr. Risto Savela, Prof. Dr. Reko Leino, Carolina Viegas, Dr. Narendra Kumar, Dr. Kari Eränen, Jarl Hemming, Dr. Annika Smeds and Dmitry Yu. Murzin

      Article first published online: 16 JUL 2015 | DOI: 10.1002/cssc.201500526

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      Pores versus acidity: The structures and properties of zeolites and mesoporous materials are investigated as catalysts for the amidation of renewable feedstocks, such as fatty acids, esters, and Chlorella alga based biodiesel, with ethanolamine, alaninol, and leucinol as nitrogen sources.

    2. Reduced Graphene Oxide Bipolar Membranes for Integrated Solar Water Splitting in Optimal pH

      Michael B. McDonald, Jared P. Bruce, Kevin McEleney and Prof. Michael S. Freund

      Article first published online: 16 JUL 2015 | DOI: 10.1002/cssc.201500538

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      Let’s split: Reduced graphene oxide is a chemically controllable, electrically conductive catalyst for bipolar membranes in integrated photoelectrochemical water splitting. Membranes that contain graphene oxide are developed and reduced to induce electronic conductivity and maintain a sufficient catalytic activity. Upon optimization, relative overpotentials of <30 % are obtained along with excellent electrical properties, and the catalysts are suited for efficient water splitting.

    3. Photocatalysis using a Wide Range of the Visible Light Spectrum: Hydrogen Evolution from Doped AgGaS2

      Kohei Yamato, Dr. Akihide Iwase and Prof. Akihiko Kudo

      Article first published online: 16 JUL 2015 | DOI: 10.1002/cssc.201500540

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      In broad daylight: Iron, cobalt, nickel, and copper are doped into AgGaS2. Doping with nickel forms an electron donor level in a forbidden band of AgGaS2. The nickel-doped material shows activity towards sacrificial H2 evolution, utilizing light up to 760 nm corresponding to the extended absorption band. H2 evolution is due to a transition from the electron donor level consisting of nickel to the conduction band of AgGaS2.

    4. Synthesis of BiVO4@C Core–Shell Structure on Reduced Graphene Oxide with Enhanced Visible-Light Photocatalytic Activity

      Zhihua Sun, Dr. Chenzhe Li, Prof. Shenmin Zhu, Prof. Maenghyo Cho, Prof. Zhixin Chen, Prof. Kyeongjae Cho, Yongliang Liao, Dr. Chao Yin and Prof. Di Zhang

      Article first published online: 16 JUL 2015 | DOI: 10.1002/cssc.201500379

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      Core issues: Core–shell BiVO4@C with a controlled particle size is engineered on reduced graphene oxide (RGO) by a new ultrasound-assisted wet chemical method. The bonds formed between the carbon shell and RGO reduce the recombination loss of photogenerated charges effectively, which results in an enhanced performance in photocatalysis. The strategy is simple, effective, and can be extended to other ternary oxides with controlled size and high performance.

  21. Communications

    1. Highly Reversible Lithium-ions Storage of Molybdenum Dioxide Nanoplates for High Power Lithium-ion Batteries

      Dr. Xiaolin Liu, Prof. Jun Yang, Prof. Wenhua Hou, Prof. Jiulin Wang and Yanna Nuli

      Article first published online: 16 JUL 2015 | DOI: 10.1002/cssc.201500574

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      Know the limits: MoO2 nanoplates are facilely synthesized through a hydrothermal process. In electrochemical tests of MoO2 as anode in lithium-ion batteries, the potential window is set between 1.0 and 2.5 V to avoid its conversion reaction, which would result in large volume expansion and structural disintegration. As a result, the MoO2 nanoplates exhibit an extremely high cycle stability and capacity compared with that of Li4Ti5O12.

  22. Full Papers

    1. Hindered Glymes for Graphite-Compatible Electrolytes

      Devaraj Shanmukaraj, Sylvie Grugeon, Stephane Laruelle and Michel Armand

      Article first published online: 16 JUL 2015 | DOI: 10.1002/cssc.201500502

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      Hindered glymes: A new electrolyte based on hindered polyether (glyme) solvents has been designed for graphite/LiFePO4 batteries. These electrolytes are safe (high flash point) and environmentally friendly. The most important aspect of using hindered glyme electrolytes with graphite electrodes is the absence of exfoliation of the graphite at both room temperature and higher operating temperature (70 °C) without compromising cycling capacity. The hindered glyme chemistry is rich and can open up new horizons for energy storage.

    2. Reduction of Charge and Discharge Polarization by Cobalt Nanoparticles-Embedded Carbon Nanofibers for Li–O2 Batteries

      Yun-Jung Kim, Hongkyung Lee, Dr. Dong Jin Lee, Prof. Jung-Ki Park and Prof. Hee-Tak Kim

      Article first published online: 14 JUL 2015 | DOI: 10.1002/cssc.201500520

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      Modulation of Li2O2: Cobalt nanoparticles (Co NPs) embedded in carbon nanofibers (Co–CNFs) are introduced as air cathode in lithium–oxygen batteries. Co NPs could induce a charge localization of Co–CNFs and the formation of amorphous Li2O2 as discharge product. Because amorphous Li2O2 can be decomposed more easily than crystalline Li2O2, the charge overpotential is reduced effectively.

  23. Book Reviews

  24. Reviews

    1. Nanocatalysis in Flow

      Dr. Roberto Ricciardi, Prof. Dr. Jurriaan Huskens and Dr. Willem Verboom

      Article first published online: 6 JUL 2015 | DOI: 10.1002/cssc.201500514

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      Full stream ahead! The anchoring of nanoparticles in microfluidic reactors results in devices in which various types of catalytic reactions can be performed efficiently. Different ways to support these nanoparticles are reviewed and their advantages and disadvantages are highlighted.

  25. Full Papers

    1. Cost-Effective Hierarchical Catalysts for Promoting Hydrogen Release from Complex Hydrides

      Dr. Cheng-Hsien Yang, Chih-Ping Hsu, Prof. Sheng-Long Lee, Prof. Kuan-Wen Wang and Prof. Jeng-Kuei Chang

      Article first published online: 6 JUL 2015 | DOI: 10.1002/cssc.201500413

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      No pressure, LiAlH4, just release H2: Highly effective Ni/Fe/carbon nanotubes (CNTs) hierarchical catalysts with low cost are constructed using a supercritical CO2-assisted deposition technique. Using 10 wt % of this nanocatalyst, the initial dehydrogenation temperature of LiAlH4 is decreased from ∼135 °C to ∼40 °C. At 100 °C, the catalyzed LiAlH4 takes only ∼0.1 h to release 4.5 wt % hydrogen, which is more than 100 times faster than that required for pristine LiAlH4.

    2. Nickel Hexacyanoferrate as Suitable Alternative to Ag for Electrochemical Lithium Recovery

      Dr. R. Trócoli, A. Battistel and Dr. F. La Mantia

      Article first published online: 2 JUL 2015 | DOI: 10.1002/cssc.201500368

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      Excuse, but please exclude me: The amount of Li required will increase in the near future to 713 000 t per year. Thus, the Ag or Pt electrodes used in the current electrochemical methods for purification of Li should be replaced with less expensive materials. Here, nickel hexacyanoferrate is presented as a good alternative to the use of expensive metals; also, a new electrochemical Li recovery process based on Atacama or sea water as recovery solution is developed.

  26. Communications

    1. A Bioinspired Molecular Polyoxometalate Catalyst with Two Cobalt(II) Oxide Cores for Photocatalytic Water Oxidation

      Jie Wei, Yingying Feng, Panpan Zhou, Yan Liu, Jingyin Xu, Rui Xiang, Prof. Dr. Yong Ding, Chongchao Zhao, Linyuan Fan and Changwen Hu

      Article first published online: 30 JUN 2015 | DOI: 10.1002/cssc.201500490

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      Encore: The study of an all-inorganic, oxidatively and hydrolytically stable polyoxometalate embedding two CoII4O3 cores as water oxidation catalyst provides a convincing example of a new structural model to catalyze water oxidation based on the design concept of the oxygen evolving complex (OEC) in photosystem II (PS II). The turnover number of the cobalt(II)-based cubane catalyst can reach as high as 1436, which is currently the highest among bioinspired catalysts with cubical core.

  27. Minireviews

    1. Recent Progress in Sustainable Polymers Obtained from Cyclic Terpenes: Synthesis, Properties, and Application Potential

      Dr. Malte Winnacker and Prof. Dr. Bernhard Rieger

      Article first published online: 30 JUN 2015 | DOI: 10.1002/cssc.201500421

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      Small rings are making it big: Recent work on the utilization of small terpene molecules for the synthesis of advanced polymers is reviewed in terms of synthesis, properties, and application potential and placed into the context of sustainable chemistry. The studies described emphasize the increasing significance of these natural feedstocks for advanced materials applications.

  28. Communications

    1. N-Doped Carbon-Coated Tungsten Oxynitride Nanowire Arrays for Highly Efficient Electrochemical Hydrogen Evolution

      Qun Li, Wei Cui, Dr. Jingqi Tian, Dr. Zhicai Xing, Qian Liu, Prof. Wei Xing, Prof. Abdullah M. Asiri and Prof. Xuping Sun

      Article first published online: 29 JUN 2015 | DOI: 10.1002/cssc.201500398

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      Who WON the race? N-Doped carbon-coated tungsten oxynitride nanowire arrays on carbon cloth (WON@NC NAs/CC) are prepared by annealing the WO3 NAs/CC precursor under an Ar atmosphere in the presence of dicyandiamide and are used as a 3 D hydrogen evolution cathode with superior activity and stability over the pH 0–14 range. PBS=phosphate-buffered saline, RHE=reversible hydrogen electrode.

  29. Full Papers

    1. Nanocomposite Semi-Solid Redox Ionic Liquid Electrolytes with Enhanced Charge-Transport Capabilities for Dye-Sensitized Solar Cells

      Dr. Iwona A. Rutkowska, Dr. Magdalena Marszalek, Justyna Orlowska, Weronika Ozimek, Dr. Shaik M. Zakeeruddin, Prof. Pawel J. Kulesza and Prof. Michael Grätzel

      Article first published online: 26 JUN 2015 | DOI: 10.1002/cssc.201403475

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      Apple of my I: Iodine-modified Pt nanoparticles promote I[BOND]I bond splitting and enhance electron transfer in an I3/I ionic liquid electrolyte. If the nanoparticles are utilized together with carbon nanotubes, the electrolyte becomes more solid but is still characterized by a fast charge-transport coefficient of 1×10−6 cm2 s−1. Good power-conversion efficiencies are achieved using this semisolid electrolyte in dye-sensitized solar cells.

    2. Highly Stable Na2/3(Mn0.54Ni0.13Co0.13)O2 Cathode Modified by Atomic Layer Deposition for Sodium-Ion Batteries

      Dr. Karthikeyan Kaliyappan, Dr. Jian Liu, Andrew Lushington, Ruying Li and Prof. Xueliang Sun

      Article first published online: 26 JUN 2015 | DOI: 10.1002/cssc.201500155

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      Put a coat on! Atomic layer deposition (ALD) is adopted to increase the cyclic stability of Na2/3(Mn0.54Ni0.13Co0.13)O2 cathodes for high-cutoff-voltage cycling. Cathodes coated with a Al2O3 film after two ALD cycles displays a high discharge capacity of at 1C discharge current rate and a slightly decreased capacity at 15C in the voltage range between 2 and 4.5 V along with better cyclic performances; the reported values are among the best reported so far for sodium-ion batteries constructed using various P2-type cathodes.

    3. Molecular Engineering of Organic Dyes with a Hole-Extending Donor Tail for Efficient All-Solid-State Dye-Sensitized Solar Cells

      Jianfeng Lu, Dr. Yu-Cheng Chang, Hsu-Yang Cheng, Dr. Hui-Ping Wu, Prof. Yibing Cheng, Prof. Mingkui Wang and Prof. Eric Wei-Guang Diau

      Article first published online: 26 JUN 2015 | DOI: 10.1002/cssc.201500309

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      Dye hard: Hole-extending donor–acceptor–π–acceptor (D–A–π–A) organic dyes are designed and synthesized for all-solid-state dye-sensitized solar cells, and a power conversion efficiency of 5.5 % is achieved through co-sensitization with a new porphyrin dye, which extended the spectral response to 800 nm.

  30. Reviews

    1. Synthesis of Cyclic Carbonates from Epoxides and Carbon Dioxide by Using Organocatalysts

      Dr. Mirza Cokoja, Michael E. Wilhelm, Michael H. Anthofer, Prof. Dr. Dr. Wolfgang A. Herrmann and Prof. Dr. Fritz E. Kühn

      Article first published online: 26 JUN 2015 | DOI: 10.1002/cssc.201500161

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      Sustaining cycles: This review presents the state-of-the art strategies to convert carbon dioxide and epoxides into cyclic carbonates by using bifunctional organocatalysts with special regard to activity, carbon footprints, recycling, and the applicability of the highlighted systems on a large scale.

  31. Communications

    1. Thiazolylidene-Catalyzed Cleavage of Methyl Oleate-Derived α-Hydroxy Ketone to the Corresponding Free Aldehydes

      Elsa Deruer, Dr. Nicolas Duguet and Prof. Marc Lemaire

      Article first published online: 26 JUN 2015 | DOI: 10.1002/cssc.201500462

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      Thiazolylidene means business: The α-hydroxy ketone-derived from methyl oleate is cleaved under nonoxidative conditions to yield the corresponding aldehydes. The reaction proceeds through a retro-benzoin process catalyzed by a thiazolylidene species. The aldehydes produced are in equilibrium with their corresponding symmetric acyloins and can be recovered by distillation.

  32. Full Papers

    1. Heterojunction Synergies in Titania-Supported Gold Photocatalysts: Implications for Solar Hydrogen Production

      Dr. Vedran Jovic, Prof. Kevin E. Smith, Prof. Hicham Idriss and Dr. Geoffrey I. N. Waterhouse

      Article first published online: 24 JUN 2015 | DOI: 10.1002/cssc.201500126

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      Phase to phase: We probe the elusive anatase–rutile synergy that is critical to the high H2 production activity of Au/P25 TiO2 photocatalysts in alcohol/water mixtures under UV excitation. Our experimental data provide direct evidence that electrons photoexcited across the rutile band gap move to anatase lattice traps through interfacial heterojunctions, which thereby decreases electron–hole recombination rates and increases H2 evolution rates.

    2. AlF3 Surface-Coated Li[Li0.2Ni0.17Co0.07Mn0.56]O2 Nanoparticles with Superior Electrochemical Performance for Lithium-Ion Batteries

      Dr. Shuwei Sun, Dr. Yanfeng Yin, Dr. Ning Wan, Dr. Qing Wu, Dr. Xiaoping Zhang, Dr. Du Pan, Dr. Ying Bai and Dr. Xia Lu

      Article first published online: 24 JUN 2015 | DOI: 10.1002/cssc.201500143

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      Just a thin AlF3 layer: An AlF3 surface layer acts as a buffer to prevent the direct contact of the electrode with the electrolyte and, thus, enhances significantly the electrochemical performance and thermal stability. At the same time, it can largely suppress the undesirable growth of solid electrolyte interphase (SEI) film and, therefore, stabilizes the structure upon cycling.

    3. Screen-Printing of ZnO Nanostructures from Sol–Gel Solutions for Their Application in Dye-Sensitized Solar Cells

      Dr. Kuhu Sarkar, Erik V. Braden, Shannon A. Bonke, Prof. Dr. Udo Bach and Prof. Dr. Peter Müller-Buschbaum

      Article first published online: 24 JUN 2015 | DOI: 10.1002/cssc.201500450

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      Screen-printed ZnO nanostructures: Simple routes to produce dye-sensitized solar cells (DSSCs) by just printing the commonly used sol–gel system fail and more elaborated approaches are required. The synthesis of metal oxide nanostructures using the diblock copolymer-assisted sol–gel route can be successfully combined with standard printing methods to fabricate DSSCs, in which ZnO nanostructures emerge as a promising alternative to the usually applied TiO2.

    4. High-Performance Aqueous/Organic Dye-Sensitized Solar Cells Based on Sensitizers Containing Triethylene Oxide Methyl Ether

      Dr. Ryan Yeh-Yung Lin, Feng-Ling Wu, Chun-Ting Li, Pei-Yu Chen, Prof. Kuo-Chuan Ho and Prof. Jiann T. Lin

      Article first published online: 22 JUN 2015 | DOI: 10.1002/cssc.201500589

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      Spaced for efficiency: The wettability and lithium-ion trapping ability of phenothiazine sensitizers are intensified with the incorporation of the triethylene oxide methyl ether entity; this leads to highly efficient aqueous and organic dye-sensitized solar cells.

    5. Acid-Functionalized Mesoporous Carbon: An Efficient Support for Ruthenium-Catalyzed γ-Valerolactone Production

      Dr. Alberto Villa, Dr. Marco Schiavoni, Dr. Carine E. Chan-Thaw, Dr. Pasquale F. Fulvio, Dr. Richard T. Mayes, Dr. Sheng Dai, Dr. Karren L. More, Dr. Gabriel M. Veith and Prof. Laura Prati

      Article first published online: 18 JUN 2015 | DOI: 10.1002/cssc.201500331

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      Which acid? Ordered mesoporous carbons are functionalized using P- and S-containing acid groups before the addition of Ru. The presence of S groups deactivates the Ru catalysts strongly, whereas the presence of P groups enhances the activity of the catalyst in levulinic acid hydrogenation and its durability.

    6. 3D Networked Tin Oxide/Graphene Aerogel with a Hierarchically Porous Architecture for High-Rate Performance Sodium-Ion Batteries

      Xiuqiang Xie, Shuangqiang Chen, Dr. Bing Sun, Prof. Dr. Chengyin Wang and Prof. Dr. Guoxiu Wang

      Article first published online: 16 JUN 2015 | DOI: 10.1002/cssc.201500149

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      Explore the pores: 3 D SnO2/graphene aerogels with a hierarchically porous structure are prepared by a facile self-assembly method, in which graphene nanosheets self-bridge to form 3D continuous networks with interconnected porous channels and SnO2 nanoparticles are homogeneously loaded on the graphene nanosheets. The integration of SnO2 nanoparticles leads to fast Na+ diffusion and electronic conductivity, giving rise to a promising high-rate performance as anode in sodium-ion batteries.

    7. Towards Stable Lithium–Sulfur Batteries with a Low Self-Discharge Rate: Ion Diffusion Modulation and Anode Protection

      Wen-Tao Xu, Hong-Jie Peng, Prof. Dr. Jia-Qi Huang, Chen-Zi Zhao, Xin-Bing Cheng and Prof. Dr. Qiang Zhang

      Article first published online: 16 JUN 2015 | DOI: 10.1002/cssc.201500428

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      All about me! The self-discharge rate of a stable lithium–sulfur cell can be controlled by anode protection from attack of polysulfides or through diffusion control of polysulfides by an ion-selective membrane.

  33. Communications

    1. Titanium(IV) in the Organic-Structure-Directing-Agent-Free Synthesis of Hydrophobic and Large-Pore Molecular Sieves as Redox Catalysts

      Dr. Jingui Wang, Prof. Dr. Toshiyuki Yokoi, Prof. Dr. Junko N. Kondo, Prof. Dr. Takashi Tatsumi and Prof. Dr. Yanli Zhao

      Article first published online: 12 JUN 2015 | DOI: 10.1002/cssc.201500443

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      Low cost comes true: Organic-structure-directing agents (OSDAs) are the most expensive ingredients among the initial raw materials used for the synthesis of molecular sieves. In this work, an OSDA-free process is developed to prepare large-pore BEA-type molecular sieves containing titanium(IV) as the framework element. The prepared molecular sieves show enhanced activity for the epoxidation of bulky alkenes.

  34. Full Papers

    1. Layered Graphene–Hexagonal BN Nanocomposites: Experimentally Feasible Approach to Charge-Induced Switchable CO2 Capture

      Dr. Xin Tan, Dr. Liangzhi Kou and Prof. Sean C. Smith

      Article first published online: 12 JUN 2015 | DOI: 10.1002/cssc.201500026

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      Hybrid boron nitride and graphene nanosheets: An experimentally feasible strategy to charge up the wide-gap hexagonal boron nitride (h-BN) for charge-controlled switchable CO2 capture is presented. Extra electrons might be effectively transferred from the high-mobility graphene (G) layer utilized into h-BN layer on the surface of G such that CO2 capture/release can be simply controlled and reversed by switching on/off the charge states of the hybrid BN/G system.

  35. Communications

    1. Catalytic Production of Branched Small Alkanes from Biohydrocarbons

      Shin-ichi Oya, Daisuke Kanno, Dr. Hideo Watanabe, Dr. Masazumi Tamura, Dr. Yoshinao Nakagawa and Prof. Dr. Keiichi Tomishige

      Article first published online: 11 JUN 2015 | DOI: 10.1002/cssc.201500375

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      If you want to hang out, you′ve gotta branch out, alkanes: Selective dissociation of internal CH2[BOND]CH2 bonds located between branches in squalane proceeds over Ru/CeO2 without skeletal isomerization or aromatization, as compared to conventional methods using metal-acid bifunctional catalysts. The small alkanes produced are suitable components for biobased liquid fuels because of their branched structures.

  36. Full Papers

    1. Carbon Nanotubes as Support in the Platinum-Catalyzed Hydrolytic Dehydrogenation of Ammonia Borane

      Wenyao Chen, Dr. Xuezhi Duan, Dr. Gang Qian, Prof. De Chen and Prof. Xinggui Zhou

      Article first published online: 9 JUN 2015 | DOI: 10.1002/cssc.201500228

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      Just gimme defects please: The hydrolytic dehydrogenation of ammonia borane by platinum nanoparticles (NPs) is used to investigate the chemistry of carbon nanotube (CNT) supports. The use of defect-rich CNTs, as compared to pristine CNTs and CNTs rich in oxygen groups, not only enhances the binding energy of platinum, leading to the highest hydrogen generation rate, but also inhibits the adsorption of boron-containing species and stabilizes the platinum NPs to resist the agglomeration, leading to the highest durability.

  37. Communications

    1. Solvent-Free Synthesis of Zeolite Crystals Encapsulating Gold–Palladium Nanoparticles for the Selective Oxidation of Bioethanol

      Jian Zhang, Dr. Liang Wang, Dr. Longfeng Zhu, Qinming Wu, Chunyu Chen, Xiong Wang, Yanyan Ji, Dr. Xiangju Meng and Prof. Feng-Shou Xiao

      Article first published online: 3 JUN 2015 | DOI: 10.1002/cssc.201500261

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      Inner strength: The conversion of bioethanol into valuable products is an important topic in biomass conversion. Bimetallic gold–palladium nanoparticles encapsulated in zeolite crystals synthesized by a solvent-free strategy exhibit superior catalytic activity, unique selectivity, and high stability in aerobic oxidation of bioethanol. These features are important for future practical applications of the AuPd@S-1 catalyst.

  38. Reviews

    1. Hydrogen Storage Materials for Mobile and Stationary Applications: Current State of the Art

      Qiwen Lai, Dr. Mark Paskevicius, Dr. Drew A. Sheppard, Prof. Craig E. Buckley, Dr. Aaron W. Thornton, Dr. Matthew R. Hill, Dr. Qinfen Gu, Dr. Jianfeng Mao, Dr. Zhenguo Huang, Prof. Hua Kun Liu, Dr. Zaiping Guo, Amitava Banerjee, Dr. Sudip Chakraborty, Prof. Rajeev Ahuja and Prof. Kondo-Francois Aguey-Zinsou

      Article first published online: 1 JUN 2015 | DOI: 10.1002/cssc.201500231

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      Hydrogen Holy Grail: Light materials that enable the safe and compact storage of hydrogen remain the bottleneck of the hydrogen economy. This review presents a critical analysis of progress made over the last 20 years following the initial discovery of hydrogen reversibility in NaAlH4, which is a light, complex hydride.

  39. Full Papers

    1. Self-Assembled 3D Graphene-Based Aerogel with Co3O4 Nanoparticles as High-Performance Asymmetric Supercapacitor Electrode

      Dr. Lijing Xie, Dr. Fangyuan Su, Longfei Xie, Xiaoming Li, Zhuo Liu, Qingqiang Kong, Xiaohui Guo, Yaoyao Zhang, Liu Wan, Prof. Kaixi Li, Prof. Chunxiang Lv and Prof. Chengmeng Chen

      Article first published online: 26 MAY 2015 | DOI: 10.1002/cssc.201500355

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      Carbon of Blinding Light: An asymmetric supercapacitor is fabricated using a three-dimensional Co3O4–reduced graphene oxide aerogel as cathode, hierarchical porous carbon (HPC) as anode, and 6 M aqueous KOH solution as electrolyte. Three as-fabricated CR2032 coin-type asymmetric supercapacitors in series can drive a light-emitting-diode (LED) bulb brightly for 30 min after charging for only 30 s.

  40. Communications

    1. The Effect of Different Phosphorus Chemical States on an Onion-like Carbon Surface for the Oxygen Reduction Reaction

      Xiaoyan Sun, Junyuan Xu, Yuxiao Ding, Dr. Bingsen Zhang, Zhenbao Feng and Prof. Dang Sheng Su

      Article first published online: 13 MAY 2015 | DOI: 10.1002/cssc.201500154

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      Peeling back the layers: The bonding state of phosphorus on nanocarbon has a significant effect on the catalytic activity of the oxygen reduction reaction. The formation of C[BOND]O[BOND]P bonds improves the activity, whereas C[BOND]P bonds have an adverse effect on stabilizing key intermediates during the reaction owing to the distorted graphitic structure.

  41. Full Papers

    1. Heterojunction Solar Cells Based on Silicon and Composite Films of Graphene Oxide and Carbon Nanotubes

      LePing Yu, Dr. Daniel Tune, Dr. Cameron Shearer and Prof. Joseph Shapter

      Article first published online: 8 MAY 2015 | DOI: 10.1002/cssc.201500169

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      Composite electrode: Graphene oxide (GO) sheets are used as the surfactant to disperse single-walled carbon nanotubes (CNT) in water to prepare GO/CNT electrodes that are applied on silicon to form a heterojunction that can be used in solar cells.

    2. Improvement of Energy Capacity with Vitamin C Treated Dual-Layered Graphene–Sulfur Cathodes in Lithium–Sulfur Batteries

      Jin Won Kim, Joey D. Ocon, Dr. Ho-Sung Kim and Prof. Dr. Jaeyoung Lee

      Article first published online: 29 APR 2015 | DOI: 10.1002/cssc.201500111

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      Take your vitamins: a dual-layered cathode design based on a sulfur-nanoparticle–graphene composite as the sulfur active layer and vitamin C reduced graphene oxide as the polysulfide absorption layer with high energy and power densities is proposed (over 600 mAh g−1 for 100 cycles at 1C).

    3. Ceramic Lithium Ion Conductor to Solve the Anode Coking Problem of Practical Solid Oxide Fuel Cells

      Dr. Wei Wang, Feng Wang, Yubo Chen, Jifa Qu, Prof. Moses O. Tadé and Prof. Zongping Shao

      Article first published online: 29 APR 2015 | DOI: 10.1002/cssc.201500028

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      No coke without fire: The high Li+ conductivity of Li0.33La0.56TiO3 (LLTO) in the Ni/LLTO catalyst successfully compensates surface lithium loss caused by evaporation through bulk diffusion and leads to a much better coking resistance, which is beneficial for the long-term stability of solid oxide fuel cells.

    4. Carbon-Nanotubes-Supported Pd Nanoparticles for Alcohol Oxidations in Fuel Cells: Effect of Number of Nanotube Walls on Activity

      Jin Zhang, Dr. Shanfu Lu, Prof. Yan Xiang, Prof. Pei Kang Shen, Dr. Jian Liu and Prof. San Ping Jiang

      Article first published online: 21 APR 2015 | DOI: 10.1002/cssc.201500107

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      Three′s the magic number: Palladium nanoparticles (NPs) with controlled particle size are uniformly assembled on the surface of carbon nanotubes CNTs with varying numbers of walls. Pd NPs supported on triple-walled CNTs (TWNTs) have the highest mass activity and stability for methanol, ethanol and ethylene glycol oxidation reactions, as compared to Pd NPs supported on single-walled and multi-walled CNTs.

  42. Cover Pictures

    1. You have free access to this content
      Enhancing the Performance of a Robust Sol–Gel-Processed p-Type Delafossite CuFeO2 Photocathode for Solar Water Reduction

      Mathieu S. Prévot, Dr. Néstor Guijarro and Prof. Kevin Sivula

      Article first published online: 17 APR 2015 | DOI: 10.1002/cssc.201500314

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      The Back Cover picture shows a solution-processed thin film of semi-conducting CuFeO2 held in front of the sun. An impressive performance is reported using this material as a photocathode for the reduction of water molecules to hydrogen (as depicted in the bottom right corner) under solar radiation. In addition to being fully solution processable, the copper-based delafossite (crystal structure is shown in the top right corner) is a class of material known for being stable in aqueous environments. Moreover, it is only composed of earth-abundant materials, as suggested by the delafossite ore shown in the bottom right corner. Overall, these properties make p-type CuFeO2 a very attractive material in the quest for inexpensive, sustainable, and stable direct solar water splitting for the generation of carbon-free hydrogen. More details can be found in the Full Paper by Prévot et al. (DOI: 10.1002/cssc.201403146).

  43. Full Papers

    1. Organic Dyes Incorporating the Dithieno[3,2-f:2′,3′-h]quinoxaline Moiety for Dye-Sensitized Solar Cells

      Jen-Shyang Ni, Wei-Siang Kao, Hao-Ju Chou and Prof. Jiann T. Lin

      Article first published online: 8 APR 2015 | DOI: 10.1002/cssc.201500193

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      More acceptance: New donor–acceptor′–acceptor-type sensitizers with a rigid dithieno[3,2-f:2′,3′-h]quinoxaline segment comprised of electron-rich and electron-deficient units in the conjugated spacer are proposed for dye-sensitized solar cells. Their structure gives rise to broad absorption spectra and high molar extinction coefficient, resulting in power conversion efficiencies higher than that of the N719 dye.

  44. Communications

    1. Hierarchical Vanadium Pentoxide Spheres as High-Performance Anode Materials for Sodium-Ion Batteries

      Dr. Dawei Su, Prof. Dr. Shixue Dou and Prof. Dr. Guoxiu Wang

      Article first published online: 30 MAR 2015 | DOI: 10.1002/cssc.201500139

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      In higher spheres: Hierarchical V2O5 spheres are synthesized and demonstrate a preferred (110) orientation, exposing more open interlayers of its crystal structure. When tested in sodium-ion batteries, the as-prepared V2O5 spheres achieve high discharge capacity, superior high rate capability, and excellent cyclability. The promising electrochemical performance is ascribed to the unique hierarchical spherical architecture and preferred exposure of the (110) crystal planes.

  45. Full Papers

    1. β-Functionalized Push–Pull Porphyrin Sensitizers in Dye-Sensitized Solar Cells: Effect of π-Conjugated Spacers

      Dr. Masatoshi Ishida, Daesub Hwang, Dr. Zhan Zhang, Yung Ji Choi, Juwon Oh, Dr. Vincent M. Lynch, Dr. Dong Young Kim, Prof. Dr. Jonanthan L. Sessler and Prof. Dr. Dongho Kim

      Article first published online: 6 MAR 2015 | DOI: 10.1002/cssc.201500085

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      Pushing through it: A series of new β-functionalized push–pull-structured porphyrin dyes are synthesized. Together, these dyes allow the effect of the π-conjugated spacer on the performance of dye-sensitized solar cells (DSSCs) to be assessed. The highest conversion efficiency in the present study (8.2 %) is achieved by using a doubly β-butadiene-linked porphyrin as the sensitizer with a cobalt-based redox shuttle as the mediator.


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