ChemSusChem

Cover image for Vol. 10 Issue 4

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

Editor: David Smith; Editorial Board Chairs: Matthias Beller, Gabriele Centi, Licheng Sun

Impact Factor: 7.116

ISI Journal Citation Reports © Ranking: 2015: 2/29 (Subject); 20/163 (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. Reviews

    1. The Chemical Route to a Carbon Dioxide Neutral World

      Prof. Johan A. Martens, Prof. Annemie Bogaerts, Prof. Norbert De Kimpe, Prof. Pierre A. Jacobs, Prof. Guy B. Marin, Prof. Korneel Rabaey, Prof. Mark Saeys and Prof. Sebastian Verhelst

      Version of Record online: 24 FEB 2017 | DOI: 10.1002/cssc.201601051

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      No time to spare: Timing in the carbon cycle suggests large-scale chemical processes in which CO2 is chemically reduced to fuel within seconds are needed to close the carbon cycle and to avoid the emission of greenhouse gases. This type of cycle, in which CO2 is formed and converted back on the same timescale, is a sustainable solution for achieving a CO2-neutral world.

  2. Full Papers

    1. Integration of Platinum Group Metal-Free Catalysts and Bilirubin Oxidase into a Hybrid Material for Oxygen Reduction: Interplay of Chemistry and Morphology

      Santiago Rojas-Carbonell, Dr. Sofia Babanova, Dr. Alexey Serov, Dr. Kateryna Artyushkova, Michael J. Workman, Dr. Carlo Santoro, Alex Mirabal, Prof. Scott Calabrese Barton and Prof. Plamen Atanassov

      Version of Record online: 23 FEB 2017 | DOI: 10.1002/cssc.201601822

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      Outside the BOx: The enhancement of the electrochemical activity toward oxygen reduction reaction with the addition of an enzyme (bilirubin oxidase, BOx) to a platinum group metal-free (PGM-free) catalyst is shown. The influence of chemistry and morphology of the PGM-free materials is found to have an impact in the level of enhancement of the hybrid catalyst.

    2. A Robust Molecular Catalyst Generated In Situ for Photo- and Electrochemical Water Oxidation

      Dr. Hussein A. Younus, Dr. Nazir Ahmad, Dr. Adeel H. Chughtai, Dr. Matthias Vandichel, Dr. Michael Busch, Prof. Kristof Van Hecke, Prof. Mekhman Yusubov, Prof. Shaoxian Song and Prof. Francis Verpoort

      Version of Record online: 21 FEB 2017 | DOI: 10.1002/cssc.201601477

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      Finding active catalytic species: An in situ generated cobalt catalyst efficiently conducts photo- and electrochemical water oxidation under near-neutral conditions. This work sheds light upon the ability to directly assemble molecular metal–organic catalyst films on the surface of different conducting electrodes for the potential molecular engineering of cobalt-based electrocatalytic films.

    3. Highly Stable Sr-Free Cobaltite-Based Perovskite Cathodes Directly Assembled on a Barrier-Layer-Free Y2O3-ZrO2 Electrolyte of Solid Oxide Fuel Cells

      Dr. Na Ai, Na Li, Dr. William D. A. Rickard, Dr. Yi Cheng, Dr. Kongfa Chen and Prof. San Ping Jiang

      Version of Record online: 21 FEB 2017 | DOI: 10.1002/cssc.201601645

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      Electrochemistry: The performance stability of directly assembled La cobaltites can be significantly enhanced by forming a composite electrode or by replacing La with Sm. This study demonstrates the new opportunities in the design and development of intermediate-temperature solid oxide fuel cells based on the directly assembled high-performance and durable Sr-free cobaltite-based perovskite cathodes.

    4. One-Pot Anchoring of Pd Nanoparticles on Nitrogen-Doped Carbon through Dopamine Self-Polymerization and Activity in the Electrocatalytic Methanol Oxidation Reaction

      Xin Li, Dr. Xiangheng Niu, Wenchi Zhang, Yanfang He, Prof. Jianming Pan, Prof. Yongsheng Yan and Prof. Fengxian Qiu

      Version of Record online: 21 FEB 2017 | DOI: 10.1002/cssc.201601732

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      One pot for MORe: A one-pot dopamine self-polymerization mediated redox strategy is used to fabricate highly dispersed Pd nanoparticles anchored on a nitrogen-doped carbon support. The material is used to catalyze the methanol oxidation reaction (MOR) with higher mass activity and durability than commercial Pd/C.

    5. High-Performance Porphyrin-Based Dye-Sensitized Solar Cells with Iodine and Cobalt Redox Shuttles

      Huaide Xiang, Wei Fan, Jia Hui Li, Tianyue Li, Prof. Neil Robertson, Xiongrong Song, Dr. Wenjun Wu, Prof. Zhaohui Wang, Prof. Weihong Zhu and Prof. He Tian

      Version of Record online: 21 FEB 2017 | DOI: 10.1002/cssc.201601617

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      Shuttle service: The improvement of the flexibility of the choice of electrolyte with a co-sensitizer is a significant issue for the development of dye-sensitized solar cells. Co-sensitization is used in this study to compensate the UV/Vis adsorption spectra and change the charge recombination inhibition significantly. High power conversion efficiencies of 10.21 and 10.42 %, respectively, are obtained for electrolytes based on iodine and cobalt redox shuttles.

    6. Lignin-Based Materials Through Thiol–Maleimide “Click” Polymerization

      Pietro Buono, Dr. Antoine Duval, Prof. Luc Averous and Dr. Youssef Habibi

      Version of Record online: 21 FEB 2017 | DOI: 10.1002/cssc.201601738

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      “Clicknin” materials: Soda lignin is functionalized with 11-maleimidoundecylenic acid (11-MUA) under solvent- and catalyst-free conditions and further polymerized through a thiol–ene “click” reaction with different polyfunctional thiol linkers. The resultant materials have a final lignin content of 30–40 % and tailored thermomechanical properties depending on the degree of functionality of the linker and the 11-MUA content.

    7. A New Triazine-Based Covalent Organic Framework for High-Performance Capacitive Energy Storage

      Piyali Bhanja, Kousik Bhunia, Sabuj K. Das, Dr. Debabrata Pradhan, Ryuto Kimura, Dr. Yuh Hijikata, Prof. Dr. Stephan Irle and Prof. Dr. Asim Bhaumik

      Version of Record online: 20 FEB 2017 | DOI: 10.1002/cssc.201601571

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      Super framework: The new covalent organic framework TDFP-1 is prepared through a solvothermal Schiff base condensation reaction and shows an excellent energy-storage capacity with a maximum specific capacitance of 354 F g−1 at a scan rate of 2 mV s−1 and good cyclic stability (95 % retention of its initial specific capacitance after 1000 cycles).

    8. Decomposition of Imidazolium-Based Ionic Liquids in Contact with Lithium Metal

      Paulo Schmitz, Rene Jakelski, Marcelina Pyschik, Dr. Kirsi Jalkanen, Dr. Sascha Nowak, Prof. Martin Winter and Dr. Peter Bieker

      Version of Record online: 20 FEB 2017 | DOI: 10.1002/cssc.201601496

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      Effects of surface exposure: The chemical instability of imidazolium-based ionic liquids (ILs) in contact with lithium metal is discussed. After aging the ILs in contact with a lithium-metal sheet, possible decomposition products are analyzed. Furthermore, stable cycling behavior in lithium-metal batteries occurs through the addition of the solid–electrolyte interphase film-forming additive fluoroethylene carbonate.

  3. Editorial

    1. You have free access to this content
      CO2 Catalysis

      Prof. Arjan W. Kleij, Prof. Michael North and Prof. Atsushi Urakawa

      Version of Record online: 20 FEB 2017 | DOI: 10.1002/cssc.201700218

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      Out of thin air: In this Editorial, the Guest Editors introduce a Special Issue on Carbon Dioxide Conversion Catalysis, discuss its importance in modern chemical processes, and highlight a few examples of its use in industry, such as the synthesis of cyclic carbonates and the conversion of CO2 into fuels.

  4. Full Papers

    1. Metal–Phenolic Carbon Nanocomposites for Robust and Flexible Energy-Storage Devices

      Dr. Jun Young Oh, Yeonsu Jung, Young Shik Cho, Jaeyoo Choi, Prof. Ji Ho Youk, Dr. Nina Fechler, Prof. Seung Jae Yang and Prof. Chong Rae Park

      Version of Record online: 20 FEB 2017 | DOI: 10.1002/cssc.201601615

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      Flexible electrodes: A metal–phenolic carbon nanocomposite film is designed and assembled by metal–organic coordination. The phenolic groups of tannic acid facilitate the aqueous dispersion and cross-linking of carbon nanotubes and provide redox-active sites for pseudocapacitance. The resulting materials exhibit high strength, flexibility, and stable volumetric capacitance under bending conditions.

    2. Study of Electrochemical Reduction of CO2 for Future Use in Secondary Microbial Electrochemical Technologies

      Carla Gimkiewicz, Richard Hegner, Mareike F. Gutensohn, Dr. Christin Koch and Dr. Falk Harnisch

      Version of Record online: 20 FEB 2017 | DOI: 10.1002/cssc.201601675

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      Energy storage with CO2: The electrochemical reduction of CO2 was investigated under conditions allowing microbial conversions for future use in secondary microbial electrochemical technologies (METs). A reproducible electrodeposition procedure of In on a graphite backbone allowed a systematic study of formate production from CO2 with coulombic efficiencies of 64.6±6.8 % and formate production rates of 0.013±0.002 mmolformate h−1 cm−2. The results demonstrate that the integration of electrochemical reduction of CO2 in secondary METs can become technologically relevant.

    3. Crucial Role of Donor Density in the Performance of Oxynitride Perovskite LaTiO2N for Photocatalytic Water Oxidation

      Dr. Feng-Qiang Xiong, Lipeng Wan, Yue Li, Dr. Tiju Thomas, Prof. Francis J. DiSalvo and Prof. Minghui Yang

      Version of Record online: 17 FEB 2017 | DOI: 10.1002/cssc.201601602

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      Improving photocatalysts: Sufficient donor density in LaTiO2N photocatalysts is essential to generate an efficient internal electric field for charge separation and for high oxidizing power of the holes. On the basis of this understanding, LaTiO2N photocatalysts were modified to give a quantum efficiency for water oxidation of 25 % at 450 nm, which is higher than that of conventional LaTiO2N.

  5. Communications

    1. Low-Energy Catalytic Electrolysis for Simultaneous Hydrogen Evolution and Lignin Depolymerization

      Xu Du, Wei Liu, Zhe Zhang, Arie Mulyadi, Alex Brittain, Prof. Jian Gong and Prof. Yulin Deng

      Version of Record online: 17 FEB 2017 | DOI: 10.1002/cssc.201601685

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      Two birds with one stone: A new direct lignin proton-exchange-membrane electrolysis can significantly reduce the electrolysis energy consumption in hydrogen production and, simultaneously, depolymerize lignin to value-added aromatic chemicals. Lignin is used as the aromatics and hydrogen source at the anode. Either polyoxometalate or FeCl3 is used as the catalyst and charge-transfer agent at the anode.

  6. Full Papers

    1. Very Important Paper

      You have full text access to this OnlineOpen article
      Aqueous Biphasic Systems for the Synthesis of Formates by Catalytic CO2 Hydrogenation: Integrated Reaction and Catalyst Separation for CO2-Scrubbing Solutions

      Martin Scott, Dr. Beatriz Blas Molinos, Christian Westhues, Dr. Giancarlo Franciò and Prof. Dr. Walter Leitner

      Version of Record online: 17 FEB 2017 | DOI: 10.1002/cssc.201601814

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      Scrubs up well: An integrated process for the synthesis of formate–amine adducts based on aqueous biphasic catalysis is presented. The solvent pair methyl isobutyl carbinol (MIBC)/water led to the most productive system with a ruthenium complex as catalyst. Re-use of the catalyst phase was demonstrated. This approach enables the direct hydrogenation of carbon dioxide in aqueous solutions of monoethanolamine and methyl diethanolamine, as used in carbon capture technologies, with a total turnover number of up to 150 000.

    2. Metallosalen-Based Ionic Porous Polymers as Bifunctional Catalysts for the Conversion of CO2 into Valuable Chemicals

      Dr. Rongchang Luo, Yaju Chen, Qian He, Xiaowei Lin, Qihang Xu, Dr. Xiaohui He, Wuying Zhang, Dr. Xiantai Zhou and Prof. Dr. Hongbing Ji

      Version of Record online: 17 FEB 2017 | DOI: 10.1002/cssc.201601846

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      POP catalysts: Metallosalen-based ionic porous organic polymers (POPs) catalysts (DVB@ISA and DVB@ISZ) exhibit excellent cooperative effect in CO2involved organic reactions such as the cycloaddition reaction from epoxides and N-formylation of amines with hydrosilanes, acting as bifunctional heterogeneous catalysts.

    3. Strategy for Extending the Stability of Bio-oil-Derived Phenolic Oligomers by Mild Hydrotreatment with Ionic-Liquid-Stabilized Nanoparticles

      Dr. Kwang Ho Kim, Prof. Robert C. Brown, Tannon Daugaard, William F. Tivol, Dr. Manfred Auer, Dr. Blake Simmons and Dr. Seema Singh

      Version of Record online: 17 FEB 2017 | DOI: 10.1002/cssc.201601515

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      Seeking treatment: Ruthenium nanoparticles stabilized in ionic liquid are prepared for the mild hydrotreatment of phenolic oligomers obtained from bio-oil. The hydrotreated phenolic oligomers show enhanced thermal stability.

  7. Communications

    1. Reaction-Induced Self-Assembly of CoO@Cu2O Nanocomposites In Situ onto SiC-Foam for Gas-Phase Oxidation of Bioethanol to Acetaldehyde

      Dr. Guofeng Zhao, Songyua Fan, Xiaxia Pan, Pengjing Chen, Prof. Dr. Ye Liu and Prof. Dr. Yong Lu

      Version of Record online: 17 FEB 2017 | DOI: 10.1002/cssc.201601848

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      A winning combination: A promising monolithic CoO@Cu2O/SiC-foam catalyst is developed by a reaction-induced method, providing a unique combination of unprecedented Cu2O–CoO interface catalysis with improved hydrodynamics and enhanced heat/mass transfer in the gas-phase aerobic oxidation of bioethanol to acetaldehyde for a feed gas with a very high ethanol concentration of 20 vol %.

  8. Full Papers

    1. On the Structure–Property Relationships of Cation-Exchanged ZK-5 Zeolites for CO2 Adsorption

      Dr. Trong D. Pham, Dr. Matthew R. Hudson, Dr. Craig M. Brown and Prof. Raul F. Lobo

      Version of Record online: 16 FEB 2017 | DOI: 10.1002/cssc.201601648

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      Identifying CO2 adsorption sites: A Rietveld refinement of a synchrotron powder X-ray diffraction pattern of CO2 dosed on Na-ZK-5 zeolite is used to determine the locations of adsorbed CO2 molecules. Three adsorption sites for CO2 are found: Site A is situated in the middle of the flat eight-membered ring windows, site B/B*, described as dual-cation adsorption sites to two Na+(II) cations, is the dominant site, and CO2 adsorption at site C can be considered as single or dual Na+ cation site in the α-cages.

    2. Solvothermally-Prepared Cu2O Electrocatalysts for CO2 Reduction with Tunable Selectivity by the Introduction of p-Block Elements

      Gastón O. Larrazábal, Dr. Antonio J. Martín, Dr. Frank Krumeich, Dr. Roland Hauert and Prof. Javier Pérez-Ramírez

      Version of Record online: 16 FEB 2017 | DOI: 10.1002/cssc.201601578

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      One way or another: The selectivity towards CO2 reduction over Cu2O electrocatalysts prepared by a simple and potentially scalable solvothermal route can be tuned by the introduction of p-block elements. The addition of Sn and In enhances the selectivity for CO, whereas the introduction of Al promotes the formation of valuable C2 and C3 products at moderate overpotentials.

    3. Simultaneous AuIII Extraction and In Situ Formation of Polymeric Membrane-Supported Au Nanoparticles: A Sustainable Process with Application in Catalysis

      Dr. Lucía Mora-Tamez, Vicente Esquivel-Peña, Dr. Ana L. Ocampo, Dr. Eduardo Rodríguez de San Miguel, Dr. Daniel Grande and Dr. Josefina de Gyves

      Version of Record online: 15 FEB 2017 | DOI: 10.1002/cssc.201601883

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      Easy transport: A polymeric membrane-supported gold nanoparticle (AuNP) catalyst is prepared on the basis of the extraction and in situ reduction of AuIII in one stage achieved by a facilitated transport system. This process is a synergic phenomenon in which all the membrane components are involved. The catalysts allow 95.4 % reduction of 4-nitrophenol in aqueous solution in 25 min and provides catalysis and separation in the same stage.

  9. Communications

    1. You have full text access to this OnlineOpen article
      Lignin-Derived Thioacidolysis Dimers: Reevaluation, New Products, Authentication, and Quantification

      Dr. Fengxia Yue, Prof. Fachuang Lu, Matt Regner, Prof. Runcang Sun and Prof. John Ralph

      Version of Record online: 15 FEB 2017 | DOI: 10.1002/cssc.201700101

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      A closer look at lignin structures: New insights are gained from authenticating and quantifying dimeric thioacidolysis products using various synthesized standard guaiacyl-type dimers. A longstanding compound assignment error is corrected, the dilemma of observing no β–β products from pinoresinol structures from softwood lignins is resolved, and the combinatorial nature of lignification is confirmed.

  10. Full Papers

    1. Very Important Paper

      High Redox Capacity of Al-Doped La1−xSrxMnO3−δ Perovskites for Splitting CO2 and H2O at Mn-Enriched Surfaces

      M. Ezbiri, V. Becattini, M. Hoes, Dr. R. Michalsky and Prof. Dr. A. Steinfeld

      Version of Record online: 14 FEB 2017 | DOI: 10.1002/cssc.201601869

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      The big split-up: Upon Al doping of lanthanum–strontium manganites, manganese enrichment and strontium depletion is observed at the perovskite surface. This is correlated with a higher redox activity and lower carbonate formation, both beneficial for CO2-splitting applications.

    2. In Situ Raman Spectroscopic Studies on Concentration of Electrolyte Salt in Lithium-Ion Batteries by Using Ultrafine Multifiber Probes

      Prof. Toshiro Yamanaka, Hiroe Nakagawa, Shigetaka Tsubouchi, Dr. Yasuhiro Domi, Prof. Takayuki Doi, Prof. Takeshi Abe and Prof. Zempachi Ogumi

      Version of Record online: 14 FEB 2017 | DOI: 10.1002/cssc.201601473

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      Ions in the deep: The total amount of ions in an electrolyte solution in a lithium-ion battery changes during operation. The change can be used as an indicator of the permeability of the solid–electrolyte interphase (SEI) at the anode for Li+ permeation, which is a key factor to achieve high battery performance. The permeability is improved by adding film-forming additives to the electrolyte to modify the properties of the SEI.

    3. Controlled Deposition and Performance Optimization of Perovskite Solar Cells Using Ultrasonic Spray-Coating of Photoactive Layers

      Wei-Chieh Chang, Ding-Hung Lan, Prof. Kun-Mu Lee, Prof. Xiao-Feng Wang and Prof. Cheng-Liang Liu

      Version of Record online: 14 FEB 2017 | DOI: 10.1002/cssc.201601711

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      Spray-coating for solar cells: This study investigates new a film-deposition technique, ultrasonic spray-coating, for use in the production of a photoactive layer of a perovskite solar cell through manipulating the ink formulation and the drying kinetics. The performance of the perovskite solar cells was mainly influenced by the intrinsic film morphology and crystalline orientation of the deposited perovskite layer.

    4. Waste-to-Chemicals for a Circular Economy: The Case of Urea Production (Waste-to-Urea)

      Elena Antonetti, Gaetano Iaquaniello, Annarita Salladini, Dr. Luca Spadaccini, Prof. Siglinda Perathoner and Prof. Gabriele Centi

      Version of Record online: 14 FEB 2017 | DOI: 10.1002/cssc.201601555

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      Waste not, want not: Waste valorization is an important component of a circular economy, but the current use of municipal solid waste is focused on energy production (waste-to-energy). We demonstrate here the economic and environmental advantages (resource preservation, lower carbon footprint, and toxicity impact) of a new waste-to-chemical technology for the production of urea, which is an important fertilizer and one of the top chemicals produced.

    5. Very Important Paper

      Carbon-Nanodot Solar Cells from Renewable Precursors

      Dr. Adam Marinovic, Lim S. Kiat, Prof. Steve Dunn, Prof. Maria-Magdalena Titirici and Dr. Joe Briscoe

      Version of Record online: 14 FEB 2017 | DOI: 10.1002/cssc.201601741

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      Biomaterials-to-nanomaterials for solar energy: Carbon nanodots synthesised by hydrothermal method from a wide range of biomaterials are used as sensitisers for TiO2-based nanostructured solar cells, and their performance is analysed and compared. l-arginine carbon nanodots used as sensitisers show the highest solar power conversion efficiency (PCE) of 0.36 %, whereas carbon nanodots from lobster shells show a PCE of 0.22 %.

    6. Mechanism of Water Oxidation Catalyzed by a Mononuclear Manganese Complex

      Ying-Ying Li, Ke Ye, Prof. Dr. Per E. M. Siegbahn and Prof. Dr. Rong-Zhen Liao

      Version of Record online: 14 FEB 2017 | DOI: 10.1002/cssc.201601538

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      Water works: The mechanism of water oxidation catalyzed by a mononuclear Mn complex is investigated through DFT calculations. The O−O bond formation can occur through oxo–oxo coupling or nucleophilic water attack because these processes have similar barriers.

    7. Tetraphenylmethane-Arylamine Hole-Transporting Materials for Perovskite Solar Cells

      Dr. Xuepeng Liu, Prof. Fantai Kong, Dr. Tai Cheng, Dr. Wangchao Chen, Prof. Zhan'ao Tan, Dr. Ting Yu, Dr. Fuling Guo, Prof. Jian Chen, Prof. Jianxi Yao and Prof. Songyuan Dai

      Version of Record online: 10 FEB 2017 | DOI: 10.1002/cssc.201601683

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      “Hole”efficiency: New hole-transporting materials for perovskite solar cells are developed using tetraphenylmethane (TPM) as core and arylamine side groups (TPA and DPA). TPA-TPM can achieve power conversion efficiency comparable to spiro-OMeTAD as well as improved long-term stability.

  11. Communications

    1. NHC-Ag/Pd-Catalyzed Reductive Carboxylation of Terminal Alkynes with CO2 and H2: A Combined Experimental and Computational Study for Fine-Tuned Selectivity

      Dr. Dingyi Yu, Dr. Feng Zhou, Dr. Diane S. W. Lim, Prof. Haibin Su and Dr. Yugen Zhang

      Version of Record online: 10 FEB 2017 | DOI: 10.1002/cssc.201601785

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      From theory to practice: Theoretical calculation and experimental development are combined for reductive carboxylation of terminal alkynes utilizing CO2 and H2 as reactants. In the system with phenylacetylene, CO2/H2, and N-heterocyclic carbene-supported Ag/Pd bimetallic catalysts, cinnamic acid, hydrocinnamic acid, or phenylpropiolic acid are selectively produced in excellent yields under fine-tuned conditions.

  12. Full Papers

    1. Sunlight-Dependent Hydrogen Production by Photosensitizer/Hydrogenase Systems

      David Adam, Lisa Bösche, Leonardo Castañeda-Losada, Dr. Martin Winkler, Dr. Ulf-Peter Apfel and Prof. Thomas Happe

      Version of Record online: 9 FEB 2017 | DOI: 10.1002/cssc.201601523

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      Lighten up: We investigate the photohydrogen production of the xanthene dye 5-carboxyeosin and the [FeFe]-hydrogenase of Chlamydomonas reinhardtii. The three-component system is effectively fueled by ambient sunlight on two typical winter days in February.

    2. Mechanistic Studies of Cyclohexene Oxide/CO2 Copolymerization by a Chromium(III) Pyridylamine-Bis(Phenolate) Complex

      Katalin Devaine-Pressing and Prof. Christopher M. Kozak

      Version of Record online: 9 FEB 2017 | DOI: 10.1002/cssc.201601641

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      Non-ionic bifunctional catalysts: A single-component chromium pyridylamine-bis(phenolate) catalyst shows high activity and selectivity for copolymerization of cyclohexene oxide (CHO) and CO2 to give poly(cyclohexene carbonate), (PCHC). Mechanistic studies show a first order dependence on chromium concentration and faster polymerization rates with increased 4-dimethylaminopyridine (DMAP) loadings. Intramolecular ring-opening of the epoxide is the proposed initiation step.

    3. Monitoring the Reaction Mechanism in Model Biogas Reforming by In Situ Transient and Steady-State DRIFTS Measurements

      Dr. Luis F. Bobadilla, Victoria Garcilaso, Dr. Miguel A. Centeno and Prof. José A. Odriozola

      Version of Record online: 9 FEB 2017 | DOI: 10.1002/cssc.201601379

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      Know the pathway! The production of syngas from biogas represents an attractive approach for reducing greenhouse emissions. We contribute to gaining a better understanding of the reaction mechanism in biogas reforming for developing more economic and efficient catalysts.

    4. Very Important Paper

      Synthesis of Butyl Levulinate Based on α-Angelica Lactone in the Presence of Easily Separable Heteropoly Acid Catalysts

      Xiaohu Yi, Dr. Mohammad G. Al-Shaal, Wirawan Ciptonugroho, Dr. Irina Delidovich, Prof. Dr. Xiaohong Wang and Prof. Dr. Regina Palkovits

      Version of Record online: 9 FEB 2017 | DOI: 10.1002/cssc.201601882

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      Switchable solubility: A series of heteropoly acid compounds ChxH(6−x)P2W18O62 with temperature-dependent solubility allows an efficient butyl levulinate formation from α-angelica lactone and an alcohol under mild conditions, thus avoiding any byproducts. The catalyst is easily separable and can be reused five times without significant loss of activity.

    5. Controlling Heat Release from a Close-Packed Bisazobenzene–Reduced-Graphene-Oxide Assembly Film for High-Energy Solid-State Photothermal Fuels

      Xiaoze Zhao, Dr. Yiyu Feng, Chengqun Qin, Weixiang Yang, Qianyu Si and Prof. Wei Feng

      Version of Record online: 8 FEB 2017 | DOI: 10.1002/cssc.201601551

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      A uniform photothermal fuel film is fabricated by the assembly of close-packed bisazobenzene (bisAzo) grafted onto reduced graphene oxide (rGO). The rGO–bisAzo assembly exhibited a high energy density of 131 Wh kg−1 and a long half-life of 37 days with a maximum temperature difference of 15 °C between the irradiated and unirradiated parts.

    6. Synthesis of Asymmetrical Organic Carbonates using CO2 as a Feedstock in AgCl/Ionic Liquid System at Ambient Conditions

      Dr. Jiayin Hu, Dr. Jun Ma, Dr. Lu Lu, Dr. Qingli Qian, Dr. Zhaofu Zhang, Dr. Chao Xie and Prof. Buxing Han

      Version of Record online: 7 FEB 2017 | DOI: 10.1002/cssc.201601773

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      Asymmetry is all! A series of asymmetrical organic carbonates can be synthesized efficiently by the reaction of CO2 with propargylic alcohols and primary alcohols under ambient conditions using AgCl/[Bmim][OAc] as catalyst and solvent, and the yields of the desired products can approach 100 %.

    7. Strategies for Enhancing the Catalytic Performance of Metal–Organic Frameworks in the Fixation of CO2 into Cyclic Carbonates

      Dr. Masoumeh Taherimehr, Dr. Ben Van de Voorde, Dr. Lik H. Wee, Prof. Johan A. Martens, Prof. Dirk E. De Vos and Prof. Paolo P. Pescarmona

      Version of Record online: 6 FEB 2017 | DOI: 10.1002/cssc.201601768

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      A stable MOF: The metal–organic framework MIL-100(Cr) is presented as a promising new heterogeneous catalyst with high activity, selectivity and reusability in the solvent-free synthesis of styrene carbonate from CO2 at mild conditions. Two strategies to increase the reusability of the MOF catalysts are proposed.

    8. Aluminum-Mediated Formation of Cyclic Carbonates: Benchmarking Catalytic Performance Metrics

      Jeroen Rintjema and Prof. Dr. Arjan W. Kleij

      Version of Record online: 3 FEB 2017 | DOI: 10.1002/cssc.201601712

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      Take a pick: The reactivities of a small series of binary catalysts derived from various combinations of Al complexes and nucleophiles are examined. These benchmarking studies provide a useful comparison of their overall performances in the coupling of both terminal and internal epoxides, and CO2 to afford their cyclic carbonates. The results are explained from a mechanistic point of view, and the crucial role of the nucleophile, its amount and catalyst concentration are discussed.

    9. Coupling Reactions of Carbon Dioxide with Epoxides Catalyzed by Vanadium Aminophenolate Complexes

      Ali I. Elkurtehi and Francesca M. Kerton

      Version of Record online: 31 JAN 2017 | DOI: 10.1002/cssc.201601548

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      Making good use of CO2: Four epoxide-soluble vanadium complexes with ionic co-catalysts convert epoxides such as propylene oxide, styrene oxide, and cyclohexene oxide to carbonates. For propylene oxide, turnover numbers up to 4000 and turnover frequencies over 500 h−1 are obtained. In situ IR spectroscopic monitoring of carbonate formation allows activation energies to be determined (45.6–54.7 kJ mol−1).

  13. Communications

    1. Cyanuric Acid-Based Organocatalyst for Utilization of Carbon Dioxide at Atmospheric Pressure

      Dr. Bing Yu, Daeun Kim, Seoksun Kim and Prof. Dr. Soon Hyeok Hong

      Version of Record online: 31 JAN 2017 | DOI: 10.1002/cssc.201601684

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      1 bar? Wunderbar! Economical and readily available cyanuric acid was demonstrated to be an excellent organocatalyst for the utilization of atmospheric pressure carbon dioxide. The catalytic system was applicable to various propargylamines and 2-aminobenzonitriles for the synthesis of 2-oxazolidinones and quinazoline-2,4(1H,3H)-diones. In particular, CO2 in air was directly converted into 2-oxazolidinone in excellent yields without external reagents.

  14. Full Papers

    1. Lignin Depolymerisation and Lignocellulose Fractionation by Solvated Electrons in Liquid Ammonia

      Dr. Pepijn Prinsen, Dr. Anand Narani and Prof. Dr. Gadi Rothenberg

      Version of Record online: 31 JAN 2017 | DOI: 10.1002/cssc.201601608

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      Dissolve and mix: Lignin, the gluey stuff that holds trees together, is easily dissolved in anhydrous liquid ammonia. Combining this with metallic sodium, various native and technical lignins can be depolymerized, giving bio-oils.

    2. Very Important Paper

      Synthesis of Cobalt Phosphide Nanoparticles Supported on Pristine Graphene by Dynamically Self-Assembled Graphene Quantum Dots for Hydrogen Evolution

      Xiaoyan Wang, Prof. Weiyong Yuan, Yanan Yu and Prof. Chang Ming Li

      Version of Record online: 31 JAN 2017 | DOI: 10.1002/cssc.201601761

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      CoProducing H2: Small, uniform, high-density, and well-dispersed CoP nanoparticles (NPs) were grown in situ on pristine graphene for the first time by dynamically self-assembled graphene quantum dots (GQDs)-mediated synthesis, showing a very high catalytic activity and excellent durability toward the hydrogen evolution reaction.

    3. Mechanistic Insights into the Carbon Dioxide/Cyclohexene Oxide Copolymerization Reaction: Is One Metal Center Enough?

      Joan González-Fabra, Dr. Fernando Castro-Gómez, Prof. Dr. Arjan W. Kleij and Prof. Dr. Carles Bo

      Version of Record online: 30 JAN 2017 | DOI: 10.1002/cssc.201601520

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      Two better than one: A computational study of several reaction mechanisms for CO2/cyclohexene oxide copolymerization mediated by an [Al{amino- tri(phenolate)}]/NBu4X binary catalyst suggests that a new non-covalent dimeric complex formed in situ in the reaction medium is the catalytically active species because it presents the most favorable free-energy pathway.

    4. Organocatalytic Coupling of CO2 with a Propargylic Alcohol: A Comprehensive Mechanistic Study

      Amélie Boyaval, Dr. Raphaël Méreau, Dr. Bruno Grignard, Prof. Christophe Detrembleur, Prof. Christine Jerome and Dr. Thierry Tassaing

      Version of Record online: 27 JAN 2017 | DOI: 10.1002/cssc.201601524

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      A better understanding: The catalytic efficiency and selectivity of bicyclic guanidines (1,5,7-triazabicyclo[4.4.0]dec-5-ene, TBD, and 7-methyl-1,5,7-triazabicyclo[4.4.0]dec-5-ene, MTBD) for the coupling of a propargylic alcohol with CO2 under mild conditions is investigated in detail through the combination of DFT calculations and online kinetic studies by in situ attenuated-total reflection (ATR)–IR spectroscopy.

  15. Communications

    1. Very Important Paper

      Selective Hydrogenation of Nitriles to Primary Amines by using a Cobalt Phosphine Catalyst

      Dr. Rosa Adam, Dr. Charles Beromeo Bheeter, Dr. Jose R. Cabrero-Antonino, Dr. Kathrin Junge, Dr. Ralf Jackstell and Prof. Matthias Beller

      Version of Record online: 23 JAN 2017 | DOI: 10.1002/cssc.201601843

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      Cobalt catalyzes it: A general procedure for the selective hydrogenation of (hetero)aromatic or aliphatic nitriles catalyzed by a cobalt-based system is described. A wide range of primary amines are synthesized in 61–99 % yield. Use of the tetradentate ligand tris[2-(dicyclohexylphosphino)ethyl]phosphine is key for the activity of the system.

    2. Direct Synthesis of Renewable Dodecanol and Dodecane with Methyl Isobutyl Ketone over Dual-Bed Catalyst Systems

      Dr. Xueru Sheng, Prof. Ning Li, Prof. Guangyi Li, Prof. Wentao Wang, Prof. Aiqin Wang, Prof. Yu Cong, Prof. Xiaodong Wang and Prof. Tao Zhang

      Version of Record online: 18 JAN 2017 | DOI: 10.1002/cssc.201601563

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      Dual-bed catalysis: For the first time, dodecanol and jet fuel range C12-branched alkane (2,4,8-trimethylnonane) are directly synthesized with high carbon yield (∼70 %) by using dual-bed catalyst systems with hydrogen and methyl isobutyl ketone (MIBK) that can be derived from lignocellulose.

  16. Full Papers

    1. Selective Synthesis of Cyclic Carbonate by Salalen–Aluminum Complexes and Mechanistic Studies

      Mariachiara Cozzolino, Tomer Rosen, Prof. Dr. Israel Goldberg, Prof. Dr. Mina Mazzeo and Prof. Dr. Marina Lamberti

      Version of Record online: 11 JAN 2017 | DOI: 10.1002/cssc.201601479

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      Fixing CO2: One intermediate species in the cycloaddition reaction of CO2 and cyclohexene oxide to cyclic carbonate, promoted by salalen–aluminum complexes, is identified and characterized by NMR spectroscopy. The effects of reaction conditions and ligands on this reaction are studied, and the cycloaddition reaction of CO2 with terminal epoxides bearing different functional groups is realized.

  17. Communications

    1. Very Important Paper

      Efficient Hydrogen Storage and Production Using a Catalyst with an Imidazoline-Based, Proton-Responsive Ligand

      Dr. Lin Wang, Dr. Naoya Onishi, Dr. Kazuhisa Murata, Prof. Dr. Takuji Hirose, Dr. James T. Muckerman, Dr. Etsuko Fujita and Dr. Yuichiro Himeda

      Version of Record online: 28 DEC 2016 | DOI: 10.1002/cssc.201601437

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      CO2 hydrogenation: A highly efficient iridium complex (3 b) for hydrogenation of CO2 in water is reported. It affords the highest CO2 hydrogenation activity under ambient conditions, with a turnover frequency (TOF) of 106 h−1 and turnover number (TON) of 7280 (maximum formate concentration: 0.591 m). Moreover, the reverse reaction also proceeds effectively using the same catalyst (1 m formic acid (FA) solution, 60 °C, TOF: 56 900 h−1).

    2. Selective Hydrogenolysis of Glycerol to 1,3-Propanediol: Manipulating the Frustrated Lewis Pairs by Introducing Gold to Pt/WOx

      Xiaochen Zhao, Jia Wang, Man Yang, Nian Lei, Lin Li, Baolin Hou, Shu Miao, Xiaoli Pan, Aiqin Wang and Tao Zhang

      Version of Record online: 28 DEC 2016 | DOI: 10.1002/cssc.201601503

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      A golden opportunity: Pt/WOx catalysts are significantly promoted by the addition of highly dispersed Au through manipulation of the frustrated Lewis-acid-pair sites. The resulting AuPt/WOx catalysts are highly active and selective for hydrogenolysis of glycerol to 1,3-propanediol under mild conditions.

  18. Full Papers

    1. Imidazolium-Functionalized Carbon Nanohorns for the Conversion of Carbon Dioxide: Unprecedented Increase of Catalytic Activity after Recycling

      Carla Calabrese, Dr. Leonarda F. Liotta, Esther Carbonell, Dr. Francesco Giacalone, Prof. Michelangelo Gruttadauria and Prof. Carmela Aprile

      Version of Record online: 28 DEC 2016 | DOI: 10.1002/cssc.201601427

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      It keeps getting better! Carbon nanohorns functionalized with imidazolium salts were synthesized using a straightforward one-pot procedure and used as catalysts for the conversion of carbon dioxide. The solids displayed excellent turnover number and productivity. Moreover, the catalysts having a p-xylyl linker and bromide anion showed an unprecedented increase of activity.

    2. One-Component Aluminum(heteroscorpionate) Catalysts for the Formation of Cyclic Carbonates from Epoxides and Carbon Dioxide

      Javier Martínez, Dr. José A. Castro-Osma, Dr. Carlos Alonso-Moreno, Dr. Antonio Rodríguez-Diéguez, Prof. Michael North, Prof. Antonio Otero and Dr. Agustín Lara-Sánchez

      Version of Record online: 27 DEC 2016 | DOI: 10.1002/cssc.201601370

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      Fixation sensation: The synthesis and structural characterization of one-component (scorpionate)Al complexes are reported. An investigation of these complexes as catalysts for the synthesis of cyclic carbonates from epoxides and carbon dioxide has led to the development of a bimetallic one-component aluminum complex that acts as an efficient catalyst for the production of cyclic carbonates from a broad range of epoxides in good to excellent yields.

    3. A Hierarchical Bipyridine-Constructed Framework for Highly Efficient Carbon Dioxide Capture and Catalytic Conversion

      Zhifeng Dai, Dr. Qi Sun, Dr. Xiaolong Liu, Liping Guo, Prof. Jixue Li, Shuxiang Pan, Chaoqun Bian, Dr. Liang Wang, Prof. Xin Hu, Prof. Xiangju Meng, Prof. Leihong Zhao, Prof. Feng Deng and Prof. Feng-Shou Xiao

      Version of Record online: 22 DEC 2016 | DOI: 10.1002/cssc.201601375

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      POP star: A bipyridine-based hierarchically porous organic polymer can capture and convert CO2 simultaneously and exhibits extraordinary performance in CO2 fixation. The materials show excellent stabilities and are readily recyclable.

    4. In Situ Generated Zinc(II) Catalyst for Incorporation of CO2 into 2-Oxazolidinones with Propargylic Amines at Atmospheric Pressure

      Xi Liu, Dr. Mei-Yan Wang, Si-Yuan Wang, Qi Wang and Prof. Liang-Nian He

      Version of Record online: 21 DEC 2016 | DOI: 10.1002/cssc.201601469

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      One catalyst, two functions: An in situ generated ZnII complex serves as a robust catalyst for incorporating CO2 into 2-oxazolidinones with propargylic amines. The readily formed Zn catalyst is presumably capable of both activating the carbon–carbon triple bond and enhancing O-nucleophilicity of the carbamate intermediate. Such dual activation effects render the carboxylative cyclization to proceed smoothly under atmospheric pressure.

  19. Communications

    1. Very Important Paper

      Copper-Catalyzed Alkoxycarbonylation of Alkanes with Alcohols

      Yahui Li, Changsheng Wang, Fengxiang Zhu, Zechao Wang, Prof. Dr. Pierre H. Dixneuf and Prof. Dr. Xiao-Feng Wu

      Version of Record online: 21 DEC 2016 | DOI: 10.1002/cssc.201601587

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      Copper can do it: A new copper-catalyzed carbonylative transformation of alkanes and alcohols is developed. Esters are prepared in good yields by carbonylation of the Cinline image −H bond of alkanes with alcohols as the nucleophiles. Notably, this is the first report on copper-catalyzed carbonylative C−H activation between alkanes and alcohols.

  20. Full Papers

    1. Cooperative Catalytic Activation of Si−H Bonds: CO2-Based Synthesis of Formamides from Amines and Hydrosilanes under Mild Conditions

      Dr. Rongchang Luo, Xiaowei Lin, Yaju Chen, Wuying Zhang, Dr. Xiantai Zhou and Prof. Dr. Hongbing Ji

      Version of Record online: 20 DEC 2016 | DOI: 10.1002/cssc.201601490

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      Formylation with CO2: The reductive N-formylation of amines to produce formamides with CO2 and hydrosilanes under ambient conditions is catalyzed by Zn(salen) complexes with inter- or intramolecular ionic-liquid moieties.

    2. Interplay between Reaction and Phase Behaviour in Carbon Dioxide Hydrogenation to Methanol

      Helena Reymond, Victor Amado-Blanco, Andreas Lauper and Prof.Dr. Philipp Rudolf von Rohr

      Version of Record online: 16 DEC 2016 | DOI: 10.1002/cssc.201601361

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      Finding the balance: A parametric study of the hydrogenation of CO2 to CH3OH is performed to assess the dependence of reaction performance on a broad range of operating conditions over a commercial Cu-based catalyst. The beneficial effects of high pressure, temperature and prolonged contact times on CO2 conversion are confirmed. Phase separation as a function of operating pressure and temperature, as well as of extent of reaction, is also demonstrated. Reaction conditions should hence combine kinetic optimum with phase optimum for the reaction performance to profit from a synergistic effect.

    3. Porous Ionic Polymers as a Robust and Efficient Platform for Capture and Chemical Fixation of Atmospheric CO2

      Dr. Qi Sun, Yingyin Jin, Briana Aguila, Prof. Xiangju Meng, Dr. Shengqian Ma and Prof. Feng-Shou Xiao

      Version of Record online: 15 DEC 2016 | DOI: 10.1002/cssc.201601350

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      CO2-trapping PIPs: A family of phosphonium based porous ionic polymers (PIPs) that are capable of simultaneously capturing and converting CO2, exhibits extraordinary performance in CO2 fixation under mild conditions. These PIPs feature a nanoporous structure, large surface area, a strong affinity for CO2, and high density of active sites.

    4. Origin of the Excellent Performance of Ru on Nitrogen-Doped Carbon Nanofibers for CO2 Hydrogenation to CH4

      Dr. Laura Roldán, Yanila Marco and Dr. Enrique García-Bordejé

      Version of Record online: 6 DEC 2016 | DOI: 10.1002/cssc.201601217

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      Another use for C supports: Ru nanoparticles supported on nitrogen-doped carbon nanofibers provide competitive CH4 production rate and stability compared to Al2O3 supported catalysts thanks to its ability to store the highest amount of chemisorbed CO species among the different tested catalysts.

    5. Carbocation/Polyol Systems as Efficient Organic Catalysts for the Preparation of Cyclic Carbonates

      Yuri A. Rulev, Dr. Zalina T. Gugkaeva, Anastasia V. Lokutova, Dr. Victor I. Maleev, Dr. Alexander S. Peregudov, Dr. Xiao Wu, Prof. Michael North and Prof. Yuri N. Belokon

      Version of Record online: 16 NOV 2016 | DOI: 10.1002/cssc.201601246

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      Double team! Triarylmethane dyes and 1,1′-bi-2-naphthol are combined to form an organocatalytic system for the synthesis of cyclic carbonates from epoxides and carbon dioxide. A catalytic cycle is proposed based on mechanistic studies using a deuterated epoxide as a substrate.

    6. Organocatalytic Coupling of CO2 with Oxetane

      Margot Alves, Dr. Bruno Grignard, Amélie Boyaval, Dr. Raphael Méreau, Dr. Julien De Winter, Dr. Pascal Gerbaux, Dr. Christophe Detrembleur, Dr. Thierry Tassaing and Prof. Christine Jérôme

      Version of Record online: 15 NOV 2016 | DOI: 10.1002/cssc.201601185

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      Organically coupled: The use of metal-free organocatalysts and hydrogen bond donor (HBD) co-catalysts is reported herein to achieve oxetane/CO2 coupling and synthesize hydroxyl telechelic carbonates with high selectivity. CO2-based polyurethanes for industrial applications can then be synthesized using these oligocarbonates and 4,4′-methylene diphenyl diisocyanate (MDI).

  21. Communications

    1. Organocatalyzed Synthesis of Oleochemical Carbonates from CO2 and Renewables

      Hendrik Büttner, Johannes Steinbauer, Christoph Wulf, Mehmet Dindaroglu, Prof. Dr. Hans-Günther Schmalz and Dr. Thomas Werner

      Version of Record online: 7 NOV 2016 | DOI: 10.1002/cssc.201601163

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      Putting CO2 to good use: Products based on >99 % CO2 are obtained by combining biological and chemical CO2 fixation. Bifunctional phosphorus-based organocatalysts are highly active for the production of oleochemical cyclic carbonates under mild and solvent-free conditions, and structure–activity relationships can be deduced. This reaction represents an excellent example for green and sustainable chemistry.

  22. Full Papers

    1. Periodic Mesoporous Organosilica with a Basic Urea-Derived Framework for Enhanced Carbon Dioxide Capture and Conversion Under Mild Conditions

      Dr. Mengshuai Liu, Xingyuan Lu, Dr. Lei Shi, Dr. Fangxiao Wang and Prof. Dr. Jianmin Sun

      Version of Record online: 31 OCT 2016 | DOI: 10.1002/cssc.201600973

      Thumbnail image of graphical abstract

      CO2 to carbonates: We prepared new periodic mesoporous organosilica with a basic urea-derived framework that exhibited an enhanced CO2 capture capacity at low pressure and an exceptional catalytic activity for the selective coupling of CO2 and epoxides into cyclic carbonates under mild, solventless, and transition-metal-free conditions.

    2. A Nitrogen-Doped Carbon Catalyst for Electrochemical CO2 Conversion to CO with High Selectivity and Current Density

      Dr. Huei-Ru Molly Jhong, Dr. Claire E. Tornow, Dr. Bretislav Smid, Prof. Andrew A. Gewirth, Prof. Stephen M. Lyth and Prof. Paul J. A. Kenis

      Version of Record online: 28 OCT 2016 | DOI: 10.1002/cssc.201600843

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      Cutting edge: A non-precious N-doped carbon catalyst for the electrochemical reduction of CO2 to CO in an electrochemical flow cell is described, exhibiting low onset potential and high current density, selectivity, as well as energetic efficiency, outperforming results obtained in the existing literature for other N-doped carbon systems. Despite the early stage of development, this catalyst already outperforms state-of-the-art Ag nanoparticle catalysts.

    3. Efficient Ionic-Liquid-Promoted Chemical Fixation of CO2 into α-Alkylidene Cyclic Carbonates

      Jikuan Qiu, Dr. Yuling Zhao, Zhiyong Li, Dr. Huiyong Wang, Prof. Maohong Fan and Prof. Jianji Wang

      Version of Record online: 28 OCT 2016 | DOI: 10.1002/cssc.201601129

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      IL fix it! The protic ionic liquid1,8-diazabicyclo-[5.4.0]-7-undecenium 2-methylimidazolide ([DBUH][MIm]) was prepared by a simple neutralization of the superbase with a weak proton donor and used to efficiently promote the chemical fixation of CO2 into α-alkylidene cyclic carbonates.

    4. Bifunctional Ionic Liquids Derived from Biorenewable Sources as Sustainable Catalysts for Fixation of Carbon Dioxide

      Vitthal B. Saptal and Prof. Bhalchandra M. Bhanage

      Version of Record online: 20 OCT 2016 | DOI: 10.1002/cssc.201601228

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      Bifunctional Catalysts! Ionic liquids containing a quaternary alkyl ammonium cation and an amine anion are prepared and applied as organocatalysts for the chemical fixation of carbon dioxide to form cyclic carbonates and quinazoline-2,4(1 H,3 H)-diones. The presence of a hydroxyl group and a free amine group in the ILs has a synergistic effect on the activation of epoxides and carbon dioxide and the subsequent cycloaddition reactions.

    5. Copper-Based Metal–Organic Porous Materials for CO2 Electrocatalytic Reduction to Alcohols

      Jonathan Albo, Daniel Vallejo, Garikoitz Beobide, Oscar Castillo, Pedro Castaño and Angel Irabien

      Version of Record online: 25 AUG 2016 | DOI: 10.1002/cssc.201600693

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      Closing the loop: Metal–organic porous materials are effective electrocatalysts for the continuous electrochemical conversion of CO2 to alcohols, a process that could promote the transition to a low-carbon economy. The modularity of these systems yields many opportunities for further performance improvements and opens new directions in electrocatalysis.

    6. Flexible Asymmetric Supercapacitors Based on Nitrogen-Doped Graphene Hydrogels with Embedded Nickel Hydroxide Nanoplates

      Hao Xie, Prof. Shaochun Tang, Prof. Dongdong Li, Prof. Sascha Vongehr and Prof. Xiangkang Meng

      Version of Record online: 20 APR 2016 | DOI: 10.1002/cssc.201600150

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      Bend me, shape me: We report the fabrication of a new composite hydrogel of N-doped graphene (NG) that contains embedded Ni(OH)2 nanoplates. Asymmetric solid-state supercapacitors prepared from such hydrogel films as positive electrodes deliver high energy densities. The high output cell voltage allows a light-emitting diode to be operated with a single capacitor.

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