ChemSusChem

Cover image for Vol. 9 Issue 14

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

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

Impact Factor: 7.116

ISI Journal Citation Reports © Ranking: 2015: 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. 1 - 34
  1. Viewpoints

    1. Across the Board: Michael North

      Prof. Michael North

      Version of Record online: 22 JUL 2016 | DOI: 10.1002/cssc.201600910

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      Cover all the bases: Our board member Prof. Michael North highlights the main points and challenges towards sustainable ring-opening polymerisation methods, stressing that the overall reaction conditions, as well as highly active polymerisation initiators based on Earth abundant materials, must be considered and optimized.

  2. Full Papers

    1. Pollution Control Meets Sustainability: Structure–Activity Studies on New Iron Oxide-Based CO Oxidation Catalysts

      Roland Schoch and Prof. Dr. Matthias Bauer

      Version of Record online: 21 JUL 2016 | DOI: 10.1002/cssc.201600508

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      CO oxidation: Alumina-supported iron oxide catalysts are prepared for the oxidation of carbon monoxide. The catalysts show highly promising activity and are a biocompatible alternative to precious metal catalysts. A directed synthesis approach using core–shell iron– aluminum nanoparticle precursors is established by which catalysts of distinct activity can be obtained and investigated.

    2. A Chitosan Derivative Containing Both Carboxylic Acid and Quaternary Ammonium Moieties for the Synthesis of Cyclic Carbonates

      Dr.  Vincent Besse, Dr.  Nicolas Illy, Dr.  Ghislain David, Dr.  Sylvain Caillol and Prof.  Bernard Boutevin

      Version of Record online: 21 JUL 2016 | DOI: 10.1002/cssc.201600499

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      Renewable catalysis: A chitosan-based catalyst for epoxide carbonation is described. The catalyst is efficient for the synthesis of a wide range of compounds under significantly milder operating conditions (pressure and temperature) compared to previously reported bio-based supported catalysts. It is also recyclable more than five times without loss of activity.

  3. Communications

    1. Self-Supported Cu-Based Nanowire Arrays as Noble-Metal-Free Electrocatalysts for Oxygen Evolution

      Chun-Chao Hou, Prof. Dr. Wen-Fu Fu and Prof. Dr. Yong Chen

      Version of Record online: 21 JUL 2016 | DOI: 10.1002/cssc.201600592

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      Easy arrays: Crystalline Cu-based nanowire arrays including Cu(OH)2, CuO, Cu2O, and CuOx self-supported on Cu foil can act as highly efficient, low-cost, and robust electrocatalysts for the oxygen evolution reaction. The low cost, easy accessibility, high activity at relatively low overpotential enable the self-supported Cu-based nanomaterials to be promising for practical applications.

    2. You have full text access to this OnlineOpen article
      Tandem Catalytic Depolymerization of Lignin by Water-Tolerant Lewis Acids and Rhodium Complexes

      Dr. Robin Jastrzebski, Dr. Sandra Constant, Dr. Christopher S. Lancefield, Prof. Dr. Nicholas J. Westwood, Prof. Dr. Bert M. Weckhuysen and Dr. Pieter C. A. Bruijnincx

      Version of Record online: 21 JUL 2016 | DOI: 10.1002/cssc.201600683

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      Catch and release: A tandem acidolysis/decarbonylation strategy allows for efficient catalytic scavenging of reactive lignin fragments avoiding monomer loss by recondensation. Product selectivity can be tuned by variation of the Lewis acid and lignin source.

    3. The Conversion of Starch and Sugars into Branched C10 and C11 Hydrocarbons

      Dr. Andrew D. Sutton, Dr. Jin K. Kim, Dr. Ruilian Wu, Carolyn B. Hoyt, Dr. David B. Kimball, Dr. Louis A. Silks III and Dr. John C. Gordon

      Version of Record online: 18 JUL 2016 | DOI: 10.1002/cssc.201600669

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      Robust route: A route to convert both xylose and glucose is presented using a modified Garcia–Gonzalez method with the robustness to handle very crude biomass in the form of a potato. This approach can be applied to monomeric sugars (glucose and xylose), oligosaccharides (starch), and potentially to hydrolyzed dedicated energy crops to allow the conversion of real biomass into fuel type molecules.

  4. Full Papers

    1. Furfural Synthesis from d-Xylose in the Presence of Sodium Chloride: Microwave versus Conventional Heating

      Christos Xiouras, Dr. Norbert Radacsi, Dr. Guido Sturm and Prof. Dr. Georgios D. Stefanidis

      Version of Record online: 15 JUL 2016 | DOI: 10.1002/cssc.201600446

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      Microwave adventure! The dehydration of xylose to furfural in the presence of NaCl is investigated under microwave and conventional heating. The highest furfural yield of 76 % is obtained using 3.5 wt % NaCl at 200 °C. Microwave heating does not show a prominent effect on the reaction kinetics, but lowers the energy consumption compared to simulated conventional heating (using SiC vials) at similar heating rates.

    2. Immobilization of a Metal–Nitrogen–Carbon Catalyst on Activated Carbon with Enhanced Cathode Performance in Microbial Fuel Cells

      Wulin Yang and Bruce E. Logan

      Version of Record online: 15 JUL 2016 | DOI: 10.1002/cssc.201600573

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      Bioelectricity: Air cathodes in microbial fuel cells can limit power production. By treating activated carbon with both iron and nitrogen, the highest recorded power density is achieved with acetate (4.7 W m−2) and the power production is doubled from domestic wastewater compared to previous studies.

    3. Synthesis, Characterization, and Cross-Linking Strategy of a Quercetin-Based Epoxidized Monomer as a Naturally-Derived Replacement for BPA in Epoxy Resins

      Samantha L. Kristufek, Guozhen Yang, Dr. Lauren A. Link, Brian J. Rohde, Prof. Megan L. Robertson and Prof. Karen L. Wooley

      Version of Record online: 14 JUL 2016 | DOI: 10.1002/cssc.201600392

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      A natural solution: A diglycidyl monomer prepared in two steps using a natural polyphenolic starting material, quercetin, is reacted with nadic methyl anhydride to afford epoxy cross-linked networks. The thermal and mechanical properties of these networks are compared to similarly synthesized bisphenol A-based epoxy materials for potential replacement in advanced engineering applications.

    4. Green and selective polycondensation methods toward linear sorbitol-based polyesters: enzymatic versus organic and metal-based catalysis

      Liliana Gustini, Dr. Cristina Lavilla, William W. T. J. Janssen, Dr. Antxon Martínez de Ilarduya, Prof. Sebastián Muñoz-Guerra and Prof. Cor E. Koning

      Version of Record online: 13 JUL 2016 | DOI: 10.1002/cssc.201600626

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      Green polycondensates: Linear polyesters with pendant hydroxyl groups are synthesized from the sugar alcohol sorbitol in a solvent-free approach using different (bio)catalysts. By using a renewable hydroxyl-reactive curing agent based on l-lysine, transparent and glossy poly(ester urethane) networks are successfully synthesized offering a tangible example of bio-based coatings.

    5. Red Mud and Li-Ion Batteries: A Magnetic Connection

      Anil Suryawanshi, Dr. Vanchiappan Aravindan, Prof. Srinivasan Madhavi and Prof. Satishchandra Ogale

      Version of Record online: 12 JUL 2016 | DOI: 10.1002/cssc.201600561

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      Magnetic mud: The oxide component extracted from red mud by simple magnetic separation shows an exceptional Li-ion battery performance when used as an anode material in half-cell and full-cell configuration. Additionally, long term durability is observed for 2000 cycles with the retention of 61 % capacity. This study shows a green and inexpensive approach for the construction of a highly durable anode for Li-ion power packs from earth-abundant materials.

    6. Iron-Catalyzed Reaction of Urea with Alcohols and Amines: A Safe Alternative for the Synthesis of Primary Carbamates

      Dr. Miguel Peña-López, Dr. Helfried Neumann and Prof. Dr. Matthias Beller

      Version of Record online: 12 JUL 2016 | DOI: 10.1002/cssc.201600587

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      Iron-clad method: An iron-catalyzed reaction of urea with common nucleophiles is described. The synthesis of primary carbamates is accomplished by carbamoylation of alcohols, while a transamidation reaction with amines provides the respective substituted ureas. The use of readily available reagents and the application of a benign iron source make this atom-economical process a green and safe alternative for the synthesis of such valuable compounds.

    7. Improved Performance of Electroplated CZTS Thin-Film Solar Cells with Bifacial Configuration

      Dr. Jie Ge, Yue Yu, Weijun Ke, Dr. Jian Li, Xinxuan Tan, Dr. Zhiwei Wang, Prof. Junhao Chu and Prof. Yanfa Yan

      Version of Record online: 11 JUL 2016 | DOI: 10.1002/cssc.201600440

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      Bifacial CZTS: Solar cell device performance is greatly improved by annealing Cu2ZnSnS4 (CZTS) films in S vapor. The highest efficiency of 5.8 % is achieved under 1 sun illumination from the Al-doped ZnO (AZO) front contact. An interfacial reaction between CZTS and indium tin oxide (ITO) back contact is presented, which contributes to the segregation of a SnO2-enriched interfacial layer and diffusion of In from ITO into CZTS through Sn sites.

  5. Reviews

    1. One-Pot Conversion of Carbohydrates into Furan Derivatives via Furfural and 5-Hydroxylmethylfurfural as Intermediates

      Bing Liu and Zehui Zhang

      Version of Record online: 11 JUL 2016 | DOI: 10.1002/cssc.201600507

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      Furans in one: One-pot reactions involving multiple steps have received great interest for the direct transformation of carbohydrates into fuels and chemicals. Thus, 5-hydroxymethylfurfural (HMF) is prepared from C6 carbohydrates and furfural from C5 carbohydrates. Herein, the preparation of several furan derivatives from carbohydrates via furfural and HMF as intermediates is reviewed.

  6. Full Papers

    1. Carbon Dioxide Transformation in Imidazolium Salts: Hydroaminomethylation Catalyzed by Ru-Complexes

      Meher Ali, Dr. Aitor Gual, Prof. Gunter Ebeling and Prof. Jairton Dupont

      Version of Record online: 8 JUL 2016 | DOI: 10.1002/cssc.201600385

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      VersatILe catalysis: The catalytic species generated by dissolving Ru3(CO)12 in the ionic liquids 1-n-butyl-3-methyl-imidazolium chloride or 1-n-butyl-2,3-dimethyl-imidazolium chloride are efficient multifunctional catalysts for: (a) reverse water–gas shift, (b) hydroformylation of alkenes, and (c) reductive amination of aldehydes. The hydroaminomethylation using CO2 as CO source proceeds under mild reaction conditions (120 °C, 60 bar=6 MPa) and affords amines selectively.

  7. Communications

    1. Extraction and Esterification of Low-Titer Short-Chain Volatile Fatty Acids from Anaerobic Fermentation with Ionic Liquids

      Stephen J. Andersen, Jan K. E. T. Berton, Pieter Naert, Sylvia Gildemyn, Prof. Korneel Rabaey and Prof. Christian V. Stevens

      Version of Record online: 8 JUL 2016 | DOI: 10.1002/cssc.201600473

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      Anionic mixing: Ionic liquid-mediated esterification can add value to low-titer volatile fatty acids, including anaerobic digestion intermediates and acetic acid generated from CO2 by microbial electrosynthesis. We achieved a high conversion at 75 °C from equimolar acetic acid and ethanol and show that extraction and esterification can be tailored by combining functional anions.

    2. Thermodynamically Favorable Synthesis of 2-Oxazolidinones through Silver-Catalyzed Reaction of Propargylic Alcohols, CO2, and 2-Aminoethanols

      Dr. Qing-Wen Song, Zhi-Hua Zhou, Mei-Yan Wang, Kan Zhang, Dr. Ping Liu, Jia-Yao Xun and Prof. Liang-Nian He

      Version of Record online: 6 JUL 2016 | DOI: 10.1002/cssc.201600470

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      Three in a pot: A thermodynamically feasible pathway for CO2 conversion is successfully performed to concurrently synthesize 2-oxazolidinones and α-hydroxyl ketones through a threecomponent reaction of propargylic alcohols, CO2, and 2-aminoalcohols. As a consequence, the thermodynamic limitation for the condensation reaction of 2-aminoalcohols and CO2 is circumvented by avoiding the dehydration step.

  8. Full Papers

    1. Molybdenum Disulfide-Coated Lithium Vanadium Fluorophosphate Anode: Experiments and First-Principles Calculations

      Zhaomeng Liu, Dr. Wenjie Peng, Zhenming Xu, Dr. Kaimin Shih, Dr. Jiexi Wang, Prof. Zhixing Wang, Dr. Xiaojun Lv, Prof. Jiangan Chen and Prof. Xinhai Li

      Version of Record online: 4 JUL 2016 | DOI: 10.1002/cssc.201600370

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      MoSS-covered chest of surprises: A MoS2-modified C/LiVPO4F composite utilizing amorphous carbon as an interlayer and MoS2 layers as external surface delivers good electrochemical performance including long cycle life and remarkable rate capacity when used as anode material. This is attributed to improved stability and enhanced electron transfer at the MoS2-modified C/LiVPO4F surface, which is verified by first-principles calculations.

  9. Communications

    1. Chemoselective Synthesis of Carbamates using CO2 as Carbon Source

      Daniel Riemer, Pradipbhai Hirapara and Dr. Shoubhik Das

      Version of Record online: 4 JUL 2016 | DOI: 10.1002/cssc.201600521

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      Diverse tolerance: An efficient carbamate synthesis protocol starting from amines and using CO2 as a C1 source is demonstrated. The methodology shows a broad substrate scope and excellent functional-group tolerance. The methodology was also applied to amino acids and peptides, replacing the traditional protecting reagents, and could find interest in the synthesis of highly functionalized molecules, natural products, and pharmaceuticals.

  10. Full Papers

    1. High Performance and Cost-Effective Direct Methanol Fuel Cells: Fe-N-C Methanol-Tolerant Oxygen Reduction Reaction Catalysts

      Dr. David Sebastián, Dr. Alexey Serov, Dr. Kateryna Artyushkova, Dr. Jonathan Gordon, Prof. Plamen Atanassov, Dr. Antonino S. Aricò and Dr. Vincenzo Baglio

      Version of Record online: 4 JUL 2016 | DOI: 10.1002/cssc.201600583

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      No nobles here! Platinum group metal-free materials based on Fe-N-C are investigated as cost-effective, active, stable and methanol-tolerant catalysts for the oxygen reduction reaction (ORR) in direct methanol fuel cells (DMFCs). Outstanding performance of DMFCs is observed, even at high methanol concentration (10 m), owing to improved ORR activity and high tolerance to the alcohol.

    2. Two-Step Physical Deposition of a Compact CuI Hole-Transport Layer and the Formation of an Interfacial Species in Perovskite Solar Cells

      Saba Gharibzadeh, Dr. Bahram Abdollahi Nejand, Prof. Ahmad Moshaii, Nasim Mohammadian, Amir Hossein Alizadeh, Dr. Rahele Mohammadpour, Prof. Vahid Ahmadi and Prof. Abdolali Alizadeh

      Version of Record online: 30 JUN 2016 | DOI: 10.1002/cssc.201600132

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      Interfacial synergy: A simple and practical approach is used for the deposition of a CuI thin film by gas–solid phase transformation of Cu to CuI. The deposition of the CuI layer by this method shows an exceptionally high shortcircuit current density of 32.72 mA cm−2, owing to the quality of the deposited CuI layer and to the formation of a new species that contributes to the long-wavelength incident photo-to-electron conversion efficiency.

    3. N-Heterocyclic Olefins as Robust Organocatalyst for the Chemical Conversion of Carbon Dioxide to Value-Added Chemicals

      Vitthal B. Saptal and Prof. Bhalchandra M. Bhanage

      Version of Record online: 30 JUN 2016 | DOI: 10.1002/cssc.201600467

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      NHO limits: N-Heterocyclic olefins (NHOs) activate CO2 for the formation of oxazolidinones from aziridines as well as the N-formylation of amines with polymethylhydrosiloxane (PMHS) or 9-borabicyclo[3.3.1]nonane (9-BBN) as the reducing agent. These transformations proceed under solvent-free and metal-free mild conditions.

  11. Communications

    1. A Facile Surface Passivation of Hematite Photoanodes with Iron Titanate Cocatalyst for Enhanced Water Splitting

      Dr. Lei Wang, Nhat Truong Nguyen and Prof. Dr. Patrik Schmuki

      Version of Record online: 27 JUN 2016 | DOI: 10.1002/cssc.201600462

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      Shields up! A thin Fe2TiO5 layer was decorated on nanostructured hematite photoanodes by a facile water-based solution method. The Fe2O3/Fe2TiO5 heterostructure exhibits an obvious enhancement in solar water splitting. The enhancement in photocurrent can be attributed to the effect of Fe2TiO5 overlayers passivating surface states and thus reducing surface electron–hole recombination.

  12. Full Papers

    1. A Gross-Margin Model for Defining Technoeconomic Benchmarks in the Electroreduction of CO2

      Sumit Verma, Byoungsu Kim, Dr. Huei-Ru “Molly” Jhong, Sichao Ma and Prof. Dr. Paul J. A. Kenis

      Version of Record online: 27 JUN 2016 | DOI: 10.1002/cssc.201600394

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      Can we reduce CO2 emissions and still make money? A gross-margin-based economic model is presented that identifies the technoeconomic benchmarks required for the economically viable electroreduction of CO2 to different C1–C2 chemicals and fuels. The important factors that control the economics are evaluated, and a perspective on future research directions is presented.

    2. Direct Conversion of Mono- and Polysaccharides into 5-Hydroxymethylfurfural Using Ionic-Liquid Mixtures

      Dr. Sviatlana Siankevich, Dr. Zhaofu Fei, Dr. Rosario Scopelliti, Prof. Philip G. Jessop, Dr. Jiaguang Zhang, Prof. Ning Yan and Prof. Paul J. Dyson

      Version of Record online: 27 JUN 2016 | DOI: 10.1002/cssc.201600313

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      One step wonder: Cellulose is transformed into 5-hydroxymethylfurfural (HMF) in high yield in a single step using a CrCl2 catalyst immobilized in a mixture of ionic liquids (ILs). Combining ILs with continuous HMF extraction into methyl-isobutyl ketone or 1,2-dimethoxyethane allows the online separation of HMF in high yield. This one-step process is operated under relatively mild conditions and represents a significant step forward towards sustainable HMF production.

  13. Communications

    1. Methane-induced Activation Mechanism of Fused Ferric Oxide–Alumina Catalysts during Methane Decomposition

      Dr. Linga Reddy Enakonda, Dr. Lu Zhou, Dr. Youssef Saih, Dr. Samy Ould-Chikh, Dr. Sergei Lopatin, Daniel Gary, Pascal Del-Gallo and Prof. Jean-Marie Basset

      Version of Record online: 27 JUN 2016 | DOI: 10.1002/cssc.201600500

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      Change the gas: Activation of Fe2O3–Al2O3 with reactant CH4 gas (instead of H2) is meaningful for catalytic methane decomposition (CMD) to make it more economic and simple compared to commercial methane steam reforming (MSR) to produce COx-free H2. In this study, for the first time, changes in the catalyst structural during CH4 reduction with time on stream is screened with the aim of optimizing the pretreatment conditions through understanding the activation mechanism.

    2. Electrocatalytic Hydrogenation of Oxygenates using Earth-Abundant Transition-Metal Nanoparticles under Mild Conditions

      Dr. Kyler J. Carroll, Thomas Burger, Lukas Langenegger, Steven Chavez, Sean T. Hunt, Prof. Yuriy Román-Leshkov and Prof. Fikile R. Brushett

      Version of Record online: 23 JUN 2016 | DOI: 10.1002/cssc.201600290

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      MITarbeiters of the Month: Electrocatalytic hydrogenation (ECH) is a sustainable pathway for the synthesis of value-added organic compounds, provided affordable catalysts with high activity, selectivity, and durability are developed. The performance of a series of copper, nickel, and copper–nickel nanoparticles on a carbon support towards ECH of hydroxyacetone is compared to that of ruthenium, platinum, and platinum–ruthenium nanoparticles. The non-precious metal electrocatalysts show promising conversion–time behavior, product selectivities, and Faradaic efficiencies.

  14. Concepts

    1. Carbon Dioxide-Free Hydrogen Production with Integrated Hydrogen Separation and Storage

      Stefan Dürr, Michael Müller, Holger Jorschick, Marta Helmin, Andreas Bösmann, Prof. Regina Palkovits and Prof. Peter Wasserscheid

      Version of Record online: 23 JUN 2016 | DOI: 10.1002/cssc.201600435

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      LOHC it in: Combining catalytic methane decomposition with hydrogen purification and storage by hydrogenation of LOHC systems offers a versatile and economically attractive way for upgrading stranded gas towards green, CO2-free hydrogen production.

  15. Full Papers

    1. You have full text access to this OnlineOpen article
      Static and Dynamic Studies on LiNi1/3Co1/3Mn1/3O2-Based Suspensions for Semi-Solid Flow Batteries

      Dr. Jordi Jacas Biendicho, Dr. Cristina Flox, Dr. Laura Sanz and Prof. Joan Ramon Morante

      Version of Record online: 22 JUN 2016 | DOI: 10.1002/cssc.201600285

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      Stop, go, flow! The electrochemical performance of half cells with LiNi1/3Co1/3Mn1/3O2 (LNCM)-based suspensions is affected by the content of a commercially available electroconductive carbon black. In static mode, a cell with 11.87 and 13.97 % in volume of KB and LNCM delivers high capacity 130 mAhg−1 at 5 mAcm−2, respectively. In flow mode, cell over potentials and the contact resistance between suspension and current collector depend on the applied current density.

    2. Blends of a Polymer of Intrinsic Microporosity and Partially Sulfonated Polyphenylenesulfone for Gas Separation

      Dr. Wai Fen Yong, Zhi Kang Lee, Prof. Tai-Shung Chung, Dr. Martin Weber, Dr. Claudia Staudt and Dr. Christian Maletzko

      Version of Record online: 22 JUN 2016 | DOI: 10.1002/cssc.201600354

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      Two is better than one: A novel co-solvent system is developed to promote the miscibility between polymers of intrinsic microporosity (PIM-1) and sulfonated polyphenylenesulfone (sPPSU). sPPSU significantly enhances the gas separation performance of PIM-1 in their blend membranes owing to strong molecular interactions between the sulfonated acid groups of sPPSU and CO2 or O2. These blend membranes are potential candidates for gas separation applications.

    3. Stable Deep Doping of Vapor-Phase Polymerized Poly(3,4-ethylenedioxythiophene)/Ionic Liquid Supercapacitors

      Dr. Christoffer Karlsson, James Nicholas, Prof. Drew Evans, Prof. Maria Forsyth, Prof. Maria Strømme, Prof. Martin Sjödin, Prof. Patrick C. Howlett and Dr. Cristina Pozo-Gonzalo

      Version of Record online: 21 JUN 2016 | DOI: 10.1002/cssc.201600333

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      Vapor trail: Vapor-phase polymerized poly(3,4-ethylenedioxythiophene) (PEDOT) supercapacitor cells that employ 1-ethyl-3-methylimidazolium dicyanamide as the electrolyte exhibit an outstanding performance with a specific cell capacitance of 76.4 F g−1 and a specific cell energy of 19.8 Wh kg−1. PEDOT is stable at a high doping level of 0.7 under these conditions. This is a significant improvement compared with PEDOT synthesized from liquid solution and other common electrolytes.

    4. Safe, Selective, and High-Yielding Synthesis of Acryloyl Chloride in a Continuous-Flow System

      Marine Movsisyan, Dr. Thomas S. A. Heugebaert, Dr. Rudy Dams and Prof. Dr. Christian V. Stevens

      Version of Record online: 21 JUN 2016 | DOI: 10.1002/cssc.201600348

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      The fast and the selective: A continuous-flow methodology is developed for the fast and selective synthesis of the otherwise highly unstable acryloyl chloride. The simple continuous-flow setup can be used on a laboratory scale and allows a high throughput (200 g per day). This system is a sustainable method as it enables a reduction in energy and materials consumption because of the efficient mass and heat transfer and the high process selectivity.

    5. In Situ Generation of Active Molybdenum Octahedral Clusters for Photocatalytic Hydrogen Production from Water

      Dr. Marta Feliz, Marta Puche, Dr. Pedro Atienzar, Dr. Patricia Concepción, Dr. Stéphane Cordier and Dr. Yann Molard

      Version of Record online: 17 JUN 2016 | DOI: 10.1002/cssc.201600381

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      GO for activity: Hexanuclear molybdenum clusters and their graphene oxide (GO) nanocomposites are investigated for photocatalytic hydrogen generation from water. The catalytic activity of the molecular cluster (TBA)2[Mo6Br8F6] (TBA=tetra-n-butylammonium) is enhanced by the in situ generation of hexanuclear cluster species. Coordinative immobilization of (TBA)2[Mo6Bri8Fa6] onto GO provides a robust nanomaterial with improved catalytic activity with respect to GO.

    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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