ChemSusChem

Cover image for Vol. 8 Issue 7

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: 7.117

ISI Journal Citation Reports © Ranking: 2013: 17/148 (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. 1 - 63
  1. Full Papers

    1. Electron Bottleneck in the Charge/Discharge Mechanism of Lithium Titanates for Batteries

      Dr. Edgar Ventosa, Dr. Marcel Skoumal, Francisco Javier Vazquez, Dr. Cristina Flox, Prof. Jordi Arbiol and Prof. Joan Ramon Morante

      Article first published online: 17 APR 2015 | DOI: 10.1002/cssc.201500349

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      Remember the titanates: The contributions of ionic and electrical resistances during charge/discharge are difficult to separate in solid electrodes, while the latter largely dominates in fluid electrodes. An electron bottleneck mechanism originating from the transformation of active materials from electrically insulating to conducting upon (de)lithiation explains the highly asymmetric overpotentials observed in fluid electrodes.

  2. Cover Pictures

    1. 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).

    2. From Lignocellulosic Biomass to Lactic- and Glycolic-Acid Oligomers: A Gram-Scale Microwave-Assisted Protocol

      Diego Carnaroglio, Silvia Tabasso, Beata Kwasek, Dariusz Bogdal, Emanuela Calcio Gaudino and Giancarlo Cravotto

      Article first published online: 17 APR 2015 | DOI: 10.1002/cssc.201500278

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      The Inside Cover picture shows the complementary action of different microwave reactors in destroying the polymer chains of lignocellulosic biomass and rebuilding oligomers from the recovered building blocks. We designed a “microwave factory in the lab” for a flash catalytic conversion of biomass to selective platform chemicals—a sustainable protocol carried out in a microwave flow reactor. Lactic and glycolic acids were efficiently reacted to synthesize oligomers via a solvent- and catalyst-free microwave-assisted process under vacuum. Enabling technologies play a important role in biomass valorization, from agricultural wastes to value-added products in agreement with modern biorefinery. More details can be found in the Full Paper by Carnaroglio et al. (DOI: 10.1002/cssc.2014003183).

  3. Cover Profiles

    1. Mechanism of Brønsted Acid-Catalyzed Glucose Dehydration

      Dr. Liu Yang, Dr. George Tsilomelekis, Dr. Stavros Caratzoulas and Dr. Dionisios G. Vlachos

      Article first published online: 17 APR 2015 | DOI: 10.1002/cssc.201500073

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      “Our research endeavours to target real-world, energy-related problems in an interdisciplinary environment….” 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 Yang et al.: 10.1002/cssc.201403264. View the Front Cover here: 10.1002/cssc.201500074.

  4. Communications

    1. Hydrogen Production from Aqueous Solutions of Urea with Ruthenium-based Catalysts

      Dr. Shinya Furukawa, Ryohei Suzuki, Kazuyoshi Ochi, Prof. Tatsuaki Yashima and Prof. Takayuki Komatsu

      Article first published online: 17 APR 2015 | DOI: 10.1002/cssc.201500112

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      New to the urea: An efficient catalytic system for hydrogen production from aqueous solution of urea was developed using ruthenium-based catalysts as an alternative for the existing system based on several H2 carriers. Ru/Al2O3 gave the highest catalytic performance, 92 mol % of H2 yield at 500 °C. A mechanistic study revealed that the reaction proceeds mainly via two steps; urea hydrolysis (H2NCONH2+H2O[RIGHTWARDS ARROW]2 NH3+CO2) and the following NH3 decomposition (2 NH3[RIGHTWARDS ARROW]3 H2+N2).

  5. Full Papers

    1. Highly Selective Condensation of Biomass-Derived Methyl Ketones as a Source of Aviation Fuel

      Dr. Eric R. Sacia, Dr. Madhesan Balakrishnan, Matthew H. Deaner, Konstantinos A. Goulas, Prof. F. Dean Toste and Prof. Alexis T. Bell

      Article first published online: 17 APR 2015 | DOI: 10.1002/cssc.201500002

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      Cool your jets! Aviation fuel requires a mixture of hydrocarbons having both a high energy density and a low freezing point. It is demonstrated that biomass-derived n-alkyl methyl ketones undergo selective, base-catalyzed reactions to form cyclic trimer condensates in >94 % selectivity. These products are then quantitatively hydrodeoxygenated to form aviation fuels having a broad range of volatility and exceptional freezing points and energy densities when utilizing multiple starting ketones.

    2. Niobium Doping Effects on TiO2 Mesoscopic Electron Transport Layer-Based Perovskite Solar Cells

      Dong Hoe Kim, Gill Sang Han, Won Mo Seong, Jin-Wook Lee, Byeong Jo Kim, Prof. Nam-Gyu Park, Prof. Kug Sun Hong, Dr. Sangwook Lee and Prof. Hyun Suk Jung

      Article first published online: 17 APR 2015 | DOI: 10.1002/cssc.201403478

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      Nb-doped TiO2 nanoparticles for perovskite solar cell: TiO2 nanoparticles doped with n-type Nb5+ have a diameter of 30 nm and a pure anatase phase; they are used for fabricating perovskite solar cells. Light doping increases the photovoltaic energy conversion efficiency by 10 % due to improved electron injection/transport properties of the nanoparticle-based electron transport layer.

    3. Selective Hydrogenation of Furfural to Furfuryl Alcohol in the Presence of a Recyclable Cobalt/SBA-15 Catalyst

      Maïté Audemar, Carmen Ciotonea, Dr. Karine De Oliveira Vigier, Dr. Sébastien Royer, Adrian Ungureanu, Dr. Brindusa Dragoi, Prof. Emil Dumitriu and Dr. François Jérôme

      Article first published online: 17 APR 2015 | DOI: 10.1002/cssc.201403398

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      The fast and the furfural: Furfuryl alcohol is produced from furfural with a yield of 88 % in the presence of a recyclable and stable Co/SBA-15 catalyst at 150 °C under H2 pressure in ethanol. This catalyst is also active and selective in the hydrogenation of levulinic acid to γ-valerolactone.

  6. Cover Pictures

    1. Silver Phosphate/Graphitic Carbon Nitride as an Efficient Photocatalytic Tandem System for Oxygen Evolution

      Dr. Xiaofei Yang, Dr. Hua Tang, Dr. Jingsan Xu, Prof. Markus Antonietti and Dr. Menny Shalom

      Article first published online: 16 APR 2015 | DOI: 10.1002/cssc.201500464

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      The Inside Back Cover image shows the photo-oxidation of water using silver phosphate/carbon nitride (Ag3PO4/g-C3N4). While tremendous efforts into the development photocatalytically active materials afforded highly efficient H2 evolution catalysts, the complementary, water oxidation reaction (mechanistically more demanding) remains the major obstacle for overall water splitting. The composite material is superior in both efficiency and stability compared to pristine Ag3PO4 and C3N4. A detailed analysis of the reactions mechanism strongly implies the in situ formation of an effective Z-scheme (mimicking photosynthesis in nature) through formation of Ag nanoparticles at the material interface under illumination, which is different to the conventional charge transport through the interface; this opens a method for the preparation of catalysts for full water splitting systems and other uphill energy conversion reactions. More details can be found in the Full Paper by Yang et al. (DOI: 10.1002/cssc.201403168).

    2. Mechanism of Brønsted Acid-Catalyzed Glucose Dehydration

      Dr. Liu Yang, Dr. George Tsilomelekis, Dr. Stavros Caratzoulas and Dr. Dionisios G. Vlachos

      Article first published online: 16 APR 2015 | DOI: 10.1002/cssc.201500074

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      The Front Cover picture presents the DFT-based microkinetic model for the Brønsted acid-catalyzed conversion of glucose to 5-hydroxylmethyl furfural (HMF), levulinic acid, and formic acid. Isotopic tracing coupled with kinetic experiments provides a quantitative method to assess the mechanism and to propose unknown pathways among numerous ones that could be studied using first principles methods. We reveal that glucose dehydrates through a cyclic path, whereas the rate-limiting step is the first dehydration of protonated glucose and that the majority of glucose is consumed via the HMF intermediate. More details can be found in the Full Paper by Yang et al. (DOI: 10.1002/cssc.201403264).

  7. Full Papers

    1. Eco-Friendly Solvents for Palladium-Catalyzed Desulfitative C[BOND]H Bond Arylation of Heteroarenes

      Anoir Hfaiedh, Kedong Yuan, Prof. Hamed Ben Ammar, Prof. Bechir Ben Hassine, Dr. Jean-François Soulé and Dr. Henri Doucet

      Article first published online: 16 APR 2015 | DOI: 10.1002/cssc.201403429

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      Green machine: We report the Pd-catalyzed regioselective direct arylation of heteroarenes using benzenesulfonyl chlorides as coupling partners through a desulfitative cross-coupling in diethyl carbonate or cyclopentyl methyl ether as green and renewable solvents. Moreover, for some substrates, solvent-free conditions also allow the arylation of heteroarenes in very high yields and regioselectivity.

    2. On the Role of Interfaces in Planar-Structured HC(NH2)2PbI3 Perovskite Solar Cells

      Dong-Jin Seol, Jin-Wook Lee and Nam-Gyu Park

      Article first published online: 16 APR 2015 | DOI: 10.1002/cssc.201403442

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      Focus on interfaces: A planar-junction perovskite solar cell composed of TiO2/formamidinium lead iodide(FAPbI3)/spiro-MeOTAD is fabricated, in which interfaces of FAPbI3 in contact with TiO2 and spiro-MeOTAD are modified to investigate the role of each interface. The TiO2/FAPbI3 interface is found to play an important role in determining short-circuit photocurrent, while the FAPbI3/spiro-MeOTAD interfacial role is involved in governing open-circuit voltage.

    3. Selective Nickel-Catalyzed Conversion of Model and Lignin-Derived Phenolic Compounds to Cyclohexanone-Based Polymer Building Blocks

      Wouter Schutyser, Sander Van den Bosch, Jan Dijkmans, Dr. Stuart Turner, Maria Meledina, Prof. Gustaaf Van Tendeloo, Prof. Damien P. Debecker and Prof. Bert F. Sels

      Article first published online: 16 APR 2015 | DOI: 10.1002/cssc.201403375

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      In the Ni-ck of time: The four-step conversion of lignocellulose to caprolactones is demonstrated. One of the major challenges is the selective removal of the methoxy group from the guaiacols. Ni/CeO2 is a suitable catalyst for this reaction, yielding considerable amounts of cyclohexanols, which are prone to undergo dehydrogenation and Baeyer–Villager oxidation.

    4. Sustainable Hydrogen Production by Ethanol Steam Reforming using a Partially Reduced Copper–Nickel Oxide Catalyst

      Dr. Li-Chung Chen, Dr. Hongkui Cheng, Chih-Wei Chiang and Prof. Shawn D. Lin

      Article first published online: 15 APR 2015 | DOI: 10.1002/cssc.201403433

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      Reformed alcoholic: A (Cu–NiO)SC catalyst (SC denotes preparation by the space-confinement method) catalyzes ethanol steam reforming effectively at 300 °C, and a hydrogen yield of approximately 5 is achieved with the ethanol completely converted. Therefore, ethanol steam reforming is a sustainable route for hydrogen production. Such a high performance is attributed to the presence of a CuNi–NiO interface, which reduces CH4 formation.

    5. Pd/Nb2O5/SiO2 Catalyst for the Direct Hydrodeoxygenation of Biomass-Related Compounds to Liquid Alkanes under Mild Conditions

      Yi Shao, Qineng Xia, Xiaohui Liu, Prof. Guanzhong Lu and Prof. Yanqin Wang

      Article first published online: 15 APR 2015 | DOI: 10.1002/cssc.201500053

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      Mild mannered: Under mild conditions (170 °C, 2.5 MPa), Pd/10 %Nb2O5/SiO2 is effective for the hydrodeoxygenation reactions of 4-(2-furyl)-3-buten-2-one (the aldol adduct of furfural with acetone), palmitic acid, tristearin, and diphenyl ether (model compounds of vegetable oils, microalgae oils, and lignin) and gives high yields (>94 %) of alkanes with little C[BOND]C bond cleavage.

  8. Communications

    1. Recyclable Bifunctional Polystyrene and Silica Gel-Supported Organocatalyst for the Coupling of CO2 with Epoxides

      Dr. Christina Kohrt and Dr. Thomas Werner

      Article first published online: 14 APR 2015 | DOI: 10.1002/cssc.201500128

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      Do it again: Polystyrene and silica-supported bifunctional ammonium salts catalyze the addition of carbon dioxide to epoxide under mild and solvent-free reaction conditions. Those catalysts can be recycled up to 13 times without loss of activity. Moreover, a wide array of cyclic carbonates can be prepared in excellent yields utilizing those immobilized metal-free catalyst.

    2. One-step Conversion of Furfural into 2-Methyltetrahydrofuran under Mild Conditions

      Dr. Fang Dong, Prof. Yulei Zhu, Dr. Guoqiang Ding, Dr. Jinglei Cui, Xianqing Li and Prof. Yongwang Li

      Article first published online: 14 APR 2015 | DOI: 10.1002/cssc.201500178

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      Furfural in bed with two catalysts: One-step conversion of biomass-derived furfural to 2-methyltetrahydrofuran (2-MTHF) is realized over dual solid catalysts based on two-stage-packed Cu–Pd in a reactor. 2-MTHF yield is as high as 97.1 % at atmospheric pressure and 180 °C, which is the highest value reported so far. This strategy provides a successive hydrogenation by avoiding high H2 pressure, using the reactor efficiently, and eliminating the product-separation step.

  9. Corrigenda

    1. You have free access to this content
      Corrigendum: Photogeneration of Hydrogen from Water by Hybrid Molybdenum Sulfide Clusters Immobilized on Titania

      David Recatalá, Prof. Rosa Llusar, Dr. Artem L. Gushchin, Dr. Ekaterina A. Kozlova, Yuliya A. Laricheva, Dr. Pavel A. Abramov, Prof. Maxim N. Sokolov, Prof. Roberto Gómez and Prof. Teresa Lana-Villarreal

      Article first published online: 14 APR 2015 | DOI: 10.1002/cssc.201500446

      This article corrects:

      Photogeneration of Hydrogen from Water by Hybrid Molybdenum Sulfide Clusters Immobilized on Titania

      Vol. 8, Issue 1, 148–157, Article first published online: 30 OCT 2014

  10. Full Papers

    1. In Situ Catalytic Hydrogenation of Biomass-Derived Methyl Levulinate to γ-Valerolactone in Methanol

      Xing Tang, Zheng Li, Prof. Xianhai Zeng, Yetao Jiang, Prof. Shijie Liu, Dr. Tingzhou Lei, Prof. Yong Sun and Prof. Lu Lin

      Article first published online: 14 APR 2015 | DOI: 10.1002/cssc.201403392

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      Two-faced copper: Methyl levulinate (ML) in the methanolysis products of cellulose is hydrogenated directly to γ-valerolactone (GVL) with methanol as the in situ hydrogen source over a nanocopper catalyst. The nanocopper catalyst plays a dual role in hydrogen production by methanol reforming and the subsequent hydrogenation of ML to GVL.

    2. Photoelectrochemical Reaction for the Efficient Production of Hydrogen and High-Value-Added Oxidation Reagents

      Dr. Kojiro Fuku, Nini Wang, Dr. Yugo Miseki, Dr. Takashi Funaki and Dr. Kazuhiro Sayama

      Article first published online: 14 APR 2015 | DOI: 10.1002/cssc.201403463

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      What value! Various high-value-added oxidation products such as O2, S2O82−, Ce4+, and IO4 are effectively produced and accumulated by using a porous and thick WO3 photoelectrode. A high solar energy conversion efficiency (applied bias photon-to-current efficiency: 2.2 %) is achieved in the production of H2 and S2O82−.

  11. Minireviews

    1. A Critical View on Catalytic Pyrolysis of Biomass

      Dr. R. H. Venderbosch

      Article first published online: 14 APR 2015 | DOI: 10.1002/cssc.201500115

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      The pitfalls of pyrolysis: Catalytic pyrolysis is seen as a promising route to yield liquids with a higher quality. However, in an initial stage of the catalytic process, reactive components are mainly converted to coke, gas, and water, and to a limited extent to a liquid product. Catalysts are not good enough, and finding ones to yield improved quality liquids may be practically impossible.

  12. Full Papers

    1. Catalytic Decarbonylation of Biosourced Substrates

      Dr. Jérémy Ternel, Dr. Thomas Lebarbé, Prof. Dr. Eric Monflier and Prof. Frédéric Hapiot

      Article first published online: 8 APR 2015 | DOI: 10.1002/cssc.201500214

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      The future for olefins: Ir catalysts are suitable to decarbonylate a wide range of biosourced substrates into linear α-olefins under rather mild conditions. Optimization of the catalytic system leads to very high conversion and selectivity in terminal alkenes, while the catalytic Ir system can be efficiently recycled. The scaling-up of the studied catalytic system has been successfully performed, still affording good conversion and selectivity in terminal olefins.

    2. Protic-Salt-Derived Nitrogen/Sulfur-Codoped Mesoporous Carbon for the Oxygen Reduction Reaction and Supercapacitors

      Dr. Shiguo Zhang, Ai Ikoma, Dr. Kazuhide Ueno, Dr. Zhengjian Chen, Prof. Kaoru Dokko and Prof. Masayoshi Watanabe

      Article first published online: 8 APR 2015 | DOI: 10.1002/cssc.201403320

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      Double doping trouble: A protic salt is explored as a single precursor for the preparation of nitrogen/sulfur-co-doped mesoporous carbon through a hard-templating method. This carbon has a high carbon yield, large surface area, large mesopores, narrow pore-size distribution, and high nitrogen content, and as such it has potential applications as a metal-free electrocatalyst in the oxygen reduction reaction (ORR) and as an electrode material in supercapacitors.

    3. Dimethylaminopyridine-Supported Graft Polymer Catalyst and its Flow System

      Yoshinori Okuno, Dr. Shigeki Isomura, Takahiro Kamakura, Fumiaki Sano, Kaoru Tamahori, Takahiro Goto, Takahiro Hayashida, Yuuichi Kitagawa, Ami Fukuhara and Prof. Kazuyoshi Takeda

      Article first published online: 8 APR 2015 | DOI: 10.1002/cssc.201500092

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      To anchor catalysis: A heterogeneous organocatalyst is reported, which is prepared by anchoring dimethylaminopyridine (DMAP) on polyethylene-graft-polyacrylic acid. It exhibits a higher activity than DMAP supported on polystyrene cross-linked with divinylbenzene. Its good stability allows use in continuous flow systems. Continuous acylation was achieved in eight fixed bed reactor assembled in parallel.

    4. 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.

    5. Understanding Cellulose Dissolution: Energetics of Interactions of Ionic Liquids and Cellobiose Revealed by Solution Microcalorimetry

      Heitor Fernando Nunes de Oliveira and Dr. Roberto Rinaldi

      Article first published online: 8 APR 2015 | DOI: 10.1002/cssc.201500272

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      Feel the heat! The interactions between fifteen selected ionic liquids (ILs) and cellobiose (CB) are examined by high-precision solution microcalorimetry. We found that there is an excellent correlation between the nature of the results found for the heat of mixing (ΔmixH) of CB in IL or IL/molecular solvent solutions and the solubility behavior of cellulose. This correlation suggests that ΔmixH(CB) offers a good estimate of the enthalpy of dissolution of cellulose even in solvents in which cellulose is insoluble. These findings open up new horizons for unravelling the intricacies of the thermodynamic factors accounting for the spontaneity of cellulose dissolution in ILs or IL/MS solutions.

    6. Superior Lithium Storage Performance using Sequentially Stacked MnO2/Reduced Graphene Oxide Composite Electrodes

      Sue Jin Kim, Young Jun Yun, Ki Woong Kim, Changju Chae, Dr. Sunho Jeong, Dr. Yongku Kang, Dr. Si-Young Choi, Dr. Sun Sook Lee and Dr. Sungho Choi

      Article first published online: 2 APR 2015 | DOI: 10.1002/cssc.201500200

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      Perfecting the filling: A facile synthesis of sandwich-like stacked “α-MnO2 nanowire/reduced graphene oxide sheets” composite electrodes are reported for superior lithium ion rechargeable battery. A synergistic effect of multidimensional nanoscale media between one (metal oxide nanowire) and two dimensions (graphene sheet) is observed.

  13. Communications

    1. Copper–Zinc Alloy Nanopowder: A Robust Precious-Metal-Free Catalyst for the Conversion of 5-Hydroxymethylfurfural

      Dr. Giovanni Bottari, Angela J. Kumalaputri, Dr. Krzysztof K. Krawczyk, Prof. Ben L. Feringa, Prof. Hero J. Heeres and Dr. Katalin Barta

      Article first published online: 1 APR 2015 | DOI: 10.1002/cssc.201403453

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      Revival of the ‘brass-age′: Commercially available copper–zinc nanopowder proves very robust and highly effective in the reduction of HMF to either fuel additives or useful chemical building blocks. Fuel yields of up to 97 % and FDM yield up to 95 % were obtained. The one-pot conversion of fructose to furanic diethers is also achieved, in isopropanol solvent.

  14. Full Papers

    1. Porous Co3O4/CuO Composite Assembled from Nanosheets as High-Performance Anodes for Lithium-Ion Batteries

      Qin Hao, Dianyun Zhao, Huimei Duan and Caixia Xu

      Article first published online: 31 MAR 2015 | DOI: 10.1002/cssc.201403420

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      Between the sheets: A porous Co3O4/CuO composite assembled from nanosheets is directly prepared by etching a CoCuAl alloy in NaOH solution. The composite material performs excellently in terms of cycle reversibility, Coulombic efficiency, and rate capability, at both low or high current rates. With the advantages of unique performance and ease of preparation, the as-made Co3O4/CuO nanocomposite demonstrates promising application potential as an advanced anode material for lithium-ion batteries.

    2. Water-Soluble MoS3 Nanoparticles for Photocatalytic H2 Evolution

      Wei Zhang, Tianhua Zhou, Jianwei Zheng, Jindui Hong, Yunxiang Pan and Prof. Rong Xu

      Article first published online: 31 MAR 2015 | DOI: 10.1002/cssc.201500067

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      Green light for H2 evolution: MoS3 nanoparticles with unusually high water solubility were synthesized through a facile hydrothermal method. Their excellent quantum efficiency for H2 evolution under green light irradiation can be attributed to their good dispersion in water, amorphous nature, abundant surface active sites, higher conduction band potential for proton reduction, and larger indirect band gap for a longer lifetime of the excited electrons.

    3. Electrosynthesis of Highly Transparent Cobalt Oxide Water Oxidation Catalyst Films from Cobalt Aminopolycarboxylate Complexes

      Shannon A. Bonke, Dr. Mathias Wiechen, Dr. Rosalie K. Hocking, Dr. Xi-Ya Fang, Prof. Dr. David W. Lupton, Prof. Dr. Douglas R. MacFarlane and Prof. Dr. Leone Spiccia

      Article first published online: 31 MAR 2015 | DOI: 10.1002/cssc.201403188

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      Cover up! Thin, transparent cobalt oxide films, prepared from cobalt polyaminocarboxylate precursors, are shown to be excellent water oxidation catalysts with catalytic activities comparable to those of thicker films derived from Co2+.

    4. Amine-Free Reversible Hydrogen Storage in Formate Salts Catalyzed by Ruthenium Pincer Complex without pH Control or Solvent Change

      Jotheeswari Kothandaraman, Dr. Miklos Czaun, Dr. Alain Goeppert, Prof. Dr. Ralf Haiges, John-Paul Jones, Robert B. May, Prof. Dr. G. K. Surya Prakash and Prof. Dr. George A. Olah

      Article first published online: 30 MAR 2015 | DOI: 10.1002/cssc.201403458

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      Carbon-neutral cycle! A practical, reversible, and amine-free hydrogen-storage system using Ru-pincer catalyst is presented here. At high H2 pressure, hydrogen combined with CO2 (HCO3) is stored in the form of formate salts. At low pressure, H2 is released. Up to six hydrogenation–dehydrogenation cycles were performed and the catalyst performance remained steady with high selectivity.

  15. 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.

  16. Full Papers

    1. Conversion of Hemicellulose Sugars Catalyzed by Formic Acid: Kinetics of the Dehydration of D-Xylose, L-Arabinose, and D-Glucose

      Dr. Karla Dussan, Dr. Buana Girisuta, Marystela Lopes, Dr. James J. Leahy and Prof. Michael H. B. Hayes

      Article first published online: 27 MAR 2015 | DOI: 10.1002/cssc.201403328

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      Hemicellulose’s next top model: The pretreatment of lignocellulosic biomass produces liquid streams with hemicellulose sugars, which can be further converted to high-value chemicals. This study investigates the reaction kinetics of the conversion of major hemicellulose sugars of biomass using formic acid as catalyst. Kinetic models are used to model the conversion of sugars in solutions obtained from the fractionation of biomass.

  17. Communications

    1. Hierarchical Zeolites and their Catalytic Performance in Selective Oxidative Processes

      Dr. Manuel Ojeda, Aida Grau-Atienza, Rafael Campos, Prof. Antonio A. Romero, Dr. Elena Serrano, Prof. Jose Maria Marinas, Prof. Javier García Martínez and Prof. Rafael Luque

      Article first published online: 27 MAR 2015 | DOI: 10.1002/cssc.201500124

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      Ambitious not siliceous: Desilicated hierarchical zeolites hold promise as catalytic systems. The feasibility of using these hierarchical zeolites, with and without iron oxide nanoparticles, in selective oxidation processes is investigated, taking advantage of terminal Al[BOND]OH groups to generate redox sites in zeolites. The test reactions, under microwave irradiation, are the oxidation of benzyl alcohol to benzaldehyde, the epoxidation of cyclohexene, and the multistep conversion of N,N-dimethyl formamide (DMF).

  18. Full Papers

    1. A Semi-Interpenetrating Network Approach for Dimensionally Stabilizing Highly-Charged Anion Exchange Membranes for Alkaline Fuel Cells

      Steve S. He, Alaina L. Strickler and Prof. Curtis W. Frank

      Article first published online: 27 MAR 2015 | DOI: 10.1002/cssc.201500133

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      A little restraint can work wonders: Increasing the ion exchange capacity of an anion exchange membrane often leads to higher conductivity at the expense of excessive swelling and decreased mechanical stability. We employ a semi-interpenetrating network architecture to dimensionally stabilize highly-charged benzyltrimethylammonium polysulfone membranes. These reinforced membranes exhibit excellent ionic conductivity and mechanical robustness.

    2. Tailoring the Properties of Ammine Metal Borohydrides for Solid-State Hydrogen Storage

      Lars H. Jepsen, Dr. Morten B. Ley, Prof. Yaroslav Filinchuk, Prof. Flemming Besenbacher and Prof. Torben R. Jensen

      Article first published online: 27 MAR 2015 | DOI: 10.1002/cssc.201500029

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      Here′s my hydride, so tailor me: A series of new ammine metal borohydrides for solid-state hydrogen storage is synthesized, and the crystal structures are solved. The NH3/BH4 ratio for Mn(BH4)2nNH3 is tailored by mechanochemical treatment of the mixture Mn(BH4)2⋅6NH3-Mn(BH4)2 in different ratios. It is shown that for NH3/BH4≤1 hydrogen is released, while ammonia is released for NH3/BH4>1.

    3. Very Important Paper

      Incorporation of a Metal Oxide Interlayer using a Virus-Templated Assembly for Synthesis of Graphene-Electrode-Based Organic Photovoltaics

      Dr. Yong Man Lee, Wanjung Kim, Dr. Young Hun Kim, Jung Kyu Kim, Ji-ryang Jang, Prof. Woo-Seok Choe, Prof. Jong Hyeok Park and Prof. Pil J. Yoo

      Article first published online: 25 MAR 2015 | DOI: 10.1002/cssc.201403487

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      Virus scan: The synthesis and incorporation of a WO3 interlayer into graphene-electrode-based organic photovoltaic (OPV) devices is developed by using an engineered biotemplate of M13 viruses. Owing to uniform deposition of the WO3 layer and maintenance of the electrical properties of the graphene electrode, a remarkable increase in the photoconversion efficiency (>20 %) relative to that of conventional OPVs can be obtained.

    4. Nanoporous Ru as a Carbon- and Binder-Free Cathode for Li–O2 Batteries

      Dr. Kaiming Liao, Dr. Tao Zhang, Dr. Yongqing Wang, Dr. Fujun Li, Dr. Zelang Jian, Dr. Haijun Yu and Prof. Haoshen Zhou

      Article first published online: 25 MAR 2015 | DOI: 10.1002/cssc.201403371

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      Reliable ruthenium: A simple method to fabricate nanoporous Ru catalyst for Li–O2 batteries is explored. As a carbon- and binder-free cathode, the nanoporous Ru can be continuously discharged and charged for 100 cycles within a very narrow terminal voltage window and delivers a limited capacity. This good performance is due to strong adhesion of the Ru with the Ni current collector, and good permeation of O2 and electrolyte in the catalyst.

    5. Mesoporous Carbon Nitride-Tungsten Oxide Composites for Enhanced Photocatalytic Hydrogen Evolution

      Dr. Kamalakannan Kailasam, Prof. Dr. Anna Fischer, Guigang Zhang, Dr. Jinshui Zhang, Dr. Michael Schwarze, Marc Schröder, Prof. Dr. Xinchen Wang, Prof. Dr. Reinhard Schomäcker and Prof. Dr. Arne Thomas

      Article first published online: 20 MAR 2015 | DOI: 10.1002/cssc.201403278

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      CN/WO3 composites for enhanced H2 evolution: Mesoporous CN/WO3 composites prepared by a simple dispersion method are efficient photocatalysts for enhanced hydrogen production from water. Compared to other nonporous composites based on carbon nitrides, a twofold increase in activity is observed, which is attributed to the high surface area and efficient solid-state Z-scheme-induced charge separation in these composites.

    6. Nanotubular Heterostructure of Tin Dioxide/Titanium Dioxide as a Binder-Free Anode in Lithium-Ion Batteries

      Myungjun Kim, Joobong Lee, Seonhee Lee, Seongrok Seo, Dr. Changdeuck Bae and Prof. Hyunjung Shin

      Article first published online: 20 MAR 2015 | DOI: 10.1002/cssc.201500005

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      Solid foundations: Arrays of TiO2, SnO2, heterotubular TiO2/SnO2, and TiO2/SnO2/TiO2 as binder-free anodes in lithium-ion batteries are successfully synthesized by using template-assisted atomic-layer deposition (ALD), which enables not only precise structural control, but also suppression of a large volume change in SnO2.

    7. Nanocomposite Membranes based on Polybenzimidazole and ZrO2 for High-Temperature Proton Exchange Membrane Fuel Cells

      Dr. Graeme Nawn, Dr. Giuseppe Pace, Dr. Sandra Lavina, Dr. Keti Vezzù, Dr. Enrico Negro, Dr. Federico Bertasi, Prof. Stefano Polizzi and Prof. Vito Di Noto

      Article first published online: 20 MAR 2015 | DOI: 10.1002/cssc.201403049

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      The new star in the fuel cell: The development of thermally stable polymer exchange membranes that demonstrate conductivity under anhydrous conditions remains a significant goal for fuel cell technology. This paper describes the structure–property relationships of composite membranes consisting of poly[2,2′-(m-phenylene)-5,5′-bibenzimidazole] impregnated with a ZrO2 nanofiller that has a high ionic conductivity at 185 °C.

  19. Reviews

    1. Boundary Engineering for the Thermoelectric Performance of Bulk Alloys Based on Bismuth Telluride

      Hyeona Mun, Prof. Soon-Mok Choi, Prof. Kyu Hyoung Lee and Prof. Sung Wng Kim

      Article first published online: 17 MAR 2015 | DOI: 10.1002/cssc.201403485

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      Boundary engineering for thermoelectrics: For a further enhancement of the thermoelectric figure of merit, boundary engineering is demonstrated as one of the most effective ways to enhance the thermoelectric performance of conventional thermoelectric materials such as Bi2Te3, PbTe, and SiGe alloys. We review the boundary engineering strategy into two parts; 1) grain boundary engineering and 2) phase boundary engineering using Bi2Te3-based bulk alloys.

  20. Communications

    1. Solvent-Enabled Nonenyzmatic Sugar Production from Biomass for Chemical and Biological Upgrading

      Prof. Dr. Jeremy S. Luterbacher, Dr. David Martin Alonso, Jacqueline M. Rand, Ydna M. Questell-Santiago, Jher Hau Yeap, Prof. Dr. Brian F. Pfleger and Prof. Dr. James A. Dumesic

      Article first published online: 17 MAR 2015 | DOI: 10.1002/cssc.201403418

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      Super phenolic solvents: Biomass-derived carbohydrates represent an attractive source of renewable carbon due to their many chemical and biological conversion routes to fuels and chemicals. In a nonenzymatic biomass deconstruction process for producing carbohydrates, separating a mixture of γ-valerolactone (GVL) and water used in the process is a key step. We demonstrate that phenolic solvents are highly effective at separating GVL and can be used to detoxify the biomass-derived mixture for fermentation.

  21. Full Papers

    1. First Pinacol Coupling in Emulsified Water: Key Role of Surfactant and Impact of Alternative Activation Technologies

      Dr. Muriel Billamboz and Prof. Christophe Len

      Article first published online: 16 MAR 2015 | DOI: 10.1002/cssc.201500108

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      Emulsion as the solution: Combining surfactant effects with acoustic cavitation allowed the design of a novel, fast, and efficient protocol for pinacol coupling of aromatic and α,β-unsaturated aliphatic aldehydes in water. This protocol could be applied to natural high-value compounds such as citral A. The use of IgepalCO520, a neutral surfactant, led to the successful conversion of aromatic or α,β-unsaturated aliphatic carbonyl compounds in moderate-to-excellent yield.

    2. Boosting Properties of 3D Binder-Free Manganese Oxide Anodes by Preformation of a Solid Electrolyte Interphase

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

      Article first published online: 11 MAR 2015 | DOI: 10.1002/cssc.201403393

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      Full on: A complete solid electrolyte interphase layer is preformed on a pristine 3 D binder-free MnOy-based electrode using a new electrolytic cell, which results in a big boost in the specific energy and cycling stability for the MnOy/LiMn2O4 full cells.

    3. 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.

    4. In situ Generation of Ni Nanoparticles from Metal–Organic Framework Precursors and Their Use for Biomass Hydrodeoxygenation

      Dr. Tadeja Birsa Čelič, Miha Grilc, Prof. Dr. Blaž Likozar and Prof. Dr. Nataša Novak Tušar

      Article first published online: 5 MAR 2015 | DOI: 10.1002/cssc.201403300

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      MOFing about bio-oil: In situ generated Ni nanoparticles from MOF precursor MIL-77(Ni) exhibited a high hydrodeoxygenation activity and effectively converted wood-derived oil into the polar and non-polar phase with a significantly lower viscosity and oxygen content within 60 min at 300 °C and 8 MPa of H2 pressure. The contribution represents a key step in the design of the catalyst precursors for the sustainable hydrogenation of liquefied lignocellulosic biomass in biorefinery.

  22. Communications

    1. Highly Efficient Binuclear Ruthenium Catalyst for Water Oxidation

      Anett C. Sander, Dr. Somnath Maji, Dr. Laia Francàs, Torben Böhnisch, Dr. Sebastian Dechert, Prof. Dr. Antoni Llobet and Prof. Dr. Franc Meyer

      Article first published online: 27 FEB 2015 | DOI: 10.1002/cssc.201403344

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      Design is possible: A new binuclear ruthenium-based water oxidation catalyst is presented that combines multiple beneficial structural elements for lowering the metal ions’ redox potentials, enhancing catalyst durability, and favoring the catalytic process. This leads to an impressive initial turnover frequency of 1.4 s−1 in CeIV-mediated water oxidation and high electrocatalytic activity. Spectroscopic and electrochemical signatures reflect the well-designed molecular properties.

  23. Full Papers

    1. Photoelectrochemical Water Oxidation Efficiency of a Core/Shell Array Photoanode Enhanced by a Dual Suppression Strategy

      Wanhong He, Dr. Ye Yang, Liren Wang, Junjiao Yang, Prof. Xu Xiang, Prof. Dongpeng Yan and Prof. Feng Li

      Article first published online: 25 FEB 2015 | DOI: 10.1002/cssc.201403294

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      You need to wear a coat! A core/shell array photoanode with an ultrathin overlayer is obtained by a photoassisted modification and deposition (PMD) strategy, which results in the simultaneous suppression of surface carrier recombination and back reactions during photoelectrochemical water oxidation.

    2. Structure–Property Relationships: Asymmetric Alkylphenyl-Substituted Anthracene Molecules for Use in Small-Molecule Solar Cells

      Dr. Yu Jin Kim, Dr. Eun Soo Ahn, Dr. Sang Hun Jang, Dr. Tae Kyu An, Prof. Soon-Ki Kwon, Prof. Dae Sung Chung, Prof. Yun-Hi Kim and Prof. Chan Eon Park

      Article first published online: 25 FEB 2015 | DOI: 10.1002/cssc.201402994

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      Need for space: The nature of thiophene in asymmetric anthracene-based small molecules is determined, and its effect on the crystallization behavior and formation of crystalline domains in the solid state are investigated. The crystalline nature of these small molecules is correlated with the properties of the resulting solar cell device.

    3. Surfactant Effects on the Morphology and Pseudocapacitive Behavior of V2O5⋅H2O

      Aniu Qian, Kai Zhuo, Myung Sik Shin, Woo Won Chun, Bit Na Choi and Prof. Chan-Hwa Chung

      Article first published online: 25 FEB 2015 | DOI: 10.1002/cssc.201403477

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      Morphing into it: The effect of diverse surfactants on the morphology of V2O5H2O powders is studied. The pseudocapacitive behavior of V2O5H2O powders mediated by polyethylene glycol 6000exhibit a high capacitance at a scan rate of 5 mV s−1. Moreover, the V2O5H2O electrode mediated by Pluronic P-123 delivers a high capacitance with excellent stability after 200 cycles.

    4. Silver Phosphate/Graphitic Carbon Nitride as an Efficient Photocatalytic Tandem System for Oxygen Evolution

      Dr. Xiaofei Yang, Dr. Hua Tang, Dr. Jingsan Xu, Prof. Markus Antonietti and Dr. Menny Shalom

      Article first published online: 18 FEB 2015 | DOI: 10.1002/cssc.201403168

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      Composite drawing: Well-defined g-C3N4/Ag3PO4 composite materials are fabricated by using electrostatically driven assembly and ion-exchange processes. Clear evidence for the formation of a Z-scheme between the g-C3N4/Ag3PO4 photocatalyst with outstanding efficiency in oxygen evolution and pollutant degradation is presented. The composite material is superior in both efficiency and stability than pristine Ag3PO4 and C3N4 materials.

    5. Co-solvent Pretreatment Reduces Costly Enzyme Requirements for High Sugar and Ethanol Yields from Lignocellulosic Biomass

      Thanh Yen Nguyen, Dr. Charles M. Cai, Dr. Rajeev Kumar and Prof. Charles E. Wyman

      Article first published online: 11 FEB 2015 | DOI: 10.1002/cssc.201403045

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      Break it down! We describe a new pretreatment approach, co-solvent-enhanced lignocellulosic fractionation (CELF), that reduces plant recalcitrance by solvating biomass lignin using acidified aqueous THF solutions to improve sugar yields and reduce enzyme requirements for saccharification. Our results provide important insights into promising biomass pretreatment strategies.

    6. Sonophotodeposition of Bimetallic Photocatalysts Pd–Au/TiO2: Application to Selective Oxidation of Methanol to Methyl Formate

      Dr. Juan C. Colmenares, Paweł Lisowski, Dr. Dariusz Łomot, Dr. Olga Chernyayeva and Dr. Dmytro Lisovytskiy

      Article first published online: 11 FEB 2015 | DOI: 10.1002/cssc.201403125

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      The light of sounds in catalysis: An unconventional, soft technique that combines the advantages of sonication and photodeposition (sonophotodeposition) is reported. This offers enormous possibilities for the synthesis of a broad spectrum of mono- and bimetallic nanostructured photocatalysts for a green and sustainable photocatalytic selective oxidation of methanol to form methyl formate.

    7. You have free access to this content
      Activation of Ultrathin Films of Hematite for Photoelectrochemical Water Splitting via H2 Treatment

      Jonathon Moir, Dr. Navid Soheilnia, Dr. Kristine Liao, Dr. Paul O'Brien, Yao Tian, Prof. Kenneth S. Burch and Prof. Geoffrey A. Ozin

      Article first published online: 4 FEB 2015 | DOI: 10.1002/cssc.201402945

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      Positively illuminating: Treatment of ultrathin films of hematite with H2 results in a photocurrent onset at approximately 1.1 V. By using electrochemical impedance spectroscopy, this photocurrent can be correlated with a buildup of a positively charged species at the surface of the hematite film, which is only present under illumination and after H2 treatment.

    8. From Lignocellulosic Biomass to Lactic- and Glycolic-Acid Oligomers: A Gram-Scale Microwave-Assisted Protocol

      Diego Carnaroglio, Silvia Tabasso, Beata Kwasek, Dariusz Bogdal, Emanuela Calcio Gaudino and Giancarlo Cravotto

      Article first published online: 29 JAN 2015 | DOI: 10.1002/cssc.201403183

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      Not drowning but microwaving: A flash catalytic conversion (2 min) of lignocellulosic biomass into lactic and glycolic acids under microwave irradiation is reported. The batch procedure is successfully adapted to a microwave-assisted flow process, with the aim of designing a scalable process with higher productivity. Good yields and conversions are maintained, productivity is increased and energy consumption is low.

    9. Titania-Supported Catalysts for Levulinic Acid Hydrogenation: Influence of Support and its Impact on γ-Valerolactone Yield

      Dr. A. M. Ruppert, Dr. J. Grams, Dr. M. Jędrzejczyk , J. Matras-Michalska, Dr. N. Keller, K. Ostojska and Dr. P. Sautet

      Article first published online: 14 JAN 2015 | DOI: 10.1002/cssc.201403332

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      What lies beneath: A number of different titanias are implemented as supports for Ru and Pt catalysts. It is shown that various morphologies and phases of titania influence the physicochemical properties of the studied catalysts in different ways. The best catalytic performance in levulinic acid hydrogenation is achieved in the case of mixed rutile/anatase-supported ruthenium catalyst.

    10. Mechanism of Brønsted Acid-Catalyzed Glucose Dehydration

      Dr. Liu Yang, Dr. George Tsilomelekis, Dr. Stavros Caratzoulas and Dr. Dionisios G. Vlachos

      Article first published online: 8 JAN 2015 | DOI: 10.1002/cssc.201403264

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      Glucose dehydration: The DFT-based microkinetic modeling of the Brønsted acid-catalyzed dehydration of glucose is in excellent agreement with experimental kinetic data. The rate-limiting step is the first dehydration of protonated glucose. Isotopic tracing NMR spectroscopy reveals that glucose dehydrates through a cyclic path and the majority of glucose is consumed by the 5-hydroxymethylfurfural intermediate at low conversions.

    11. 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: 8 JAN 2015 | DOI: 10.1002/cssc.201403146

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      Make the cut: Inexpensive and facile processing aid optimization and allow for insights into the limitations of delafossite CuFeO2, which is a promising material for photoelectrochemical energy conversion. A sol–gel-based technique to prepare thin films of p-type delafossite CuFeO2 on fluorine-doped tin oxide (FTO) glass is described.

  24. Communications

    1. Singlet-Oxygen Oxidation of 5-Hydroxymethylfurfural in Continuous Flow

      Dr. Thomas S. A. Heugebaert, Prof. Dr. Christian V. Stevens and Prof. Dr.  C. Oliver Kappe

      Article first published online: 11 DEC 2014 | DOI: 10.1002/cssc.201403182

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      Rosy future: The selective, high yielding, singlet-oxygen-mediated oxidation of 5-hydroxymethylfurfural (5-HMF) is performed in continuous-flow mode using rose Bengal as photosensitizer. The resulting butenolide (H2MF) is shown to be a valuable bio-based polyester precursor and the procedure proved to be scalable and applicable to related bio-based furfurals.

  25. Full Papers

    1. Plasticizer and Surfactant Formation from Food-Waste- and Algal Biomass-Derived Lipids

      Dr. Daniel Pleissner, Kin Yan Lau, Prof. Chengwu Zhang and Dr. Carol Sze Ki Lin

      Article first published online: 25 NOV 2014 | DOI: 10.1002/cssc.201402888

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      Establishment of a green society by waste utilization: A sustainable process is introduced for the formation of plasticizers and surfactants from food-waste and algal lipids. Plasticizer was formed by epoxidation of unsaturated fatty acids extracted from food-waste and algal biomass, heterotrophically produced from food-waste hydrolysate. Surfactant was produced by transesterification of epoxidized and saturated fatty acid methyl esters with polyglycerol for the formation of surfactants.

  26. Cover Pictures

    1. You have free access to this content
      A Combinatorial Approach towards Water-Stable Metal–Organic Frameworks for Highly Efficient Carbon Dioxide Separation

      Zhigang Hu, Kang Zhang, Mei Zhang, Dr. Zhengang Guo, Prof. Jianwen Jiang and Prof. Dan Zhao

      Article first published online: 18 SEP 2014 | DOI: 10.1002/cssc.201402892

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      The Inside Back Cover shows the crystal structure of an ionized Zr metal–organic framework (MOF) and its selective adsorption of CO2 over N2 and CH4 for applications in clean energy and environmental sustainability. A library of 20 UiO-66-derived MOFs is synthesized in a combinatorial approach involving mixed ligand copolymerization and two post-synthetic modifications in tandem. These MOFs exhibit excellent water stabilities in a pH range of 1 to 12, together with high CO2 uptake capacities and selectivities as revealed by the analysis of 147 isotherms. This approach paves a way towards the systematic study of water-stable and affordable MOFs as highly efficient adsorbents for CO2 separation in the applications of post-combustion CO2 capture and natural gas upgrading. More details can be found in the Communication by Hu et al. on page ▪▪ (DOI: 10.1002/cssc.201402378).

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