Cover image for Vol. 9 Issue 18

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

Editor: Michael Rowan; Editorial Board Chairs: Uwe Bornscheuer, Hermenegildo García, A. Stephen K. Hashmi

Impact Factor: 4.803

ISI Journal Citation Reports © Ranking: 2016: 29/145 (Chemistry Physical)

Online ISSN: 1867-3899

Associated Title(s): Advanced Synthesis & Catalysis, Angewandte Chemie International Edition, Chemistry - A European Journal, ChemBioChem, ChemElectroChem, ChemPhotoChem, ChemPhysChem, ChemSusChem


  1. 1 - 56
  1. Full Papers

    1. Organocatalytic Synthesis of Lactones by the Oxidation of Alkenoic Acids

      Ierasia Triandafillidi, Marianna Raftopoulou, Anatoli Savvidou and Prof. Christoforos G. Kokotos

      Version of Record online: 22 SEP 2017 | DOI: 10.1002/cctc.201700837

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      Metal-free: A green organocatalytic method for the activation of hydrogen peroxide and the oxidation of alkenoic acids to lactones is described.

    2. Isomerizing Hydroformylation of Cashew Nut Shell Liquid

      Swechchha Pandey, Dinesh R. Shinde and Dr. Samir H. Chikkali

      Version of Record online: 22 SEP 2017 | DOI: 10.1002/cctc.201700717

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      What a nut! An in situ generated catalyst delivers a terminal selectivity of 74 % in the isomerizing hydroformylation of cashew nut shell liquid and the synthetic utility of this strategy has been demonstrated by converting the resultant aldehydes into unsymmetrical α,ω-difunctional molecules.

    3. Hierarchical Ti-Beta Obtained by Simultaneous Desilication and Titanation as an Efficient Catalyst for Cyclooctene Epoxidation

      Anja Werner, Paul Bludovsky, Carolin Selzer, Ulrike Koch, Dr. Lars Giebeler, Dr. Steffen Oswald and Prof. Stefan Kaskel

      Version of Record online: 22 SEP 2017 | DOI: 10.1002/cctc.201700633

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      Holey moly! The introduction of large pores is known to be an efficient method to overcome performance constraints of zeolites caused by diffusional limitations. The substitution of framework atoms with Ti is essential for epoxidation catalysis. Combining both post-synthesis steps provides high-performance epoxidation catalysts particularly for large substrates at significantly reduced cost.

    4. Improving Carbon-Coated TiO2 Films with a TiCl4 Treatment for Photocatalytic Water Purification

      Gylen Odling, Aruna Ivaturi, Efthalia Chatzisymeon and Prof. Neil Robertson

      Version of Record online: 21 SEP 2017 | DOI: 10.1002/cctc.201700867

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      Water purification catalyst: Carbon-TiO2 hybrid films have been synthesized from a catechol-TiO2 surface complex. The coated films display enhanced visible region absorption. The activity can be improved further by a hydrolytic treatment with TiCl4, leading to the introduction of small TiO2 particles (5–10 nm) and doping of chlorine into the structure. The films were used to remove organic, inorganic and bacterial pollutants from water.

  2. Communications

    1. Excellent Selectivity with High Conversion in the Semihydrogenation of Alkynes using Palladium-Based Bimetallic Catalysts

      Jian Liu, Yanan Zhu, Chang Liu, Xiaoshi Wang, Dr. Changyan Cao and Prof. Weiguo Song

      Version of Record online: 18 SEP 2017 | DOI: 10.1002/cctc.201700800

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      Targeted selection: Active-carbon-supported PdPb and PdCu bimetal catalysts are prepared and used in the selective semihydrogenation of alkynes in the liquid phase. The best catalyst, Pd0.33Pb0.67/C, is able to achieve 100 % alkyne conversion with 98 % selectivity to the desired alkene. In particular, over-hydrogenation is completely avoided at full alkyne conversion.

  3. Full Papers

    1. Salcy-Naphthalene Cobalt Complexes as Catalysts for the Synthesis of High Molecular Weight Polycarbonates

      Dr. Mónica Viciano, Dr. Bianca K. Muñoz, Prof. Cyril Godard, Prof. Sergio Castillón, Manuel L. Reyes, Mónica García-Ruiz and Prof. Carmen Claver

      Version of Record online: 14 SEP 2017 | DOI: 10.1002/cctc.201701250

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      Ortho is the way: High molecular weight polypropylene carbonates were prepared by CO2/propylene oxide copolymerization catalyzed by salcy-naphthalene cobalt complexes. The introduction of methyl groups in ortho position of naphthalene-based salcy ligands and the catalyst loading in the presence of hexane as a co-solvent were crucial to enhance the catalytic performance for the production of polycarbonates of high molecular weight.

    2. You have full text access to this OnlineOpen article
      On the Role of Acidity in Bulk and Nanosheet [T]MFI (T=Al3+, Ga3+, Fe3+, B3+) Zeolites in the Methanol-to-Hydrocarbons Reaction

      Lingqian Meng, Xiaochun Zhu, Brahim Mezari, Robert Pestman, Wannaruedee Wannapakdee and Prof. Emiel J. M. Hensen

      Version of Record online: 14 SEP 2017 | DOI: 10.1002/cctc.201700916

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      In the frame: The influence of framework substituents (Al3+, Ga3+, Fe3+ and B3+) and morphology (bulk vs. nanometer-sized sheets) of MFI zeolites on the acidity and catalytic performance in the methanol-to-hydrocarbons (MTH) reaction was investigated.

  4. Communications

    1. Selective One-Pot Two-Step C−C Bond Formation using Metal–Organic Frameworks with Mild Basicity as Heterogeneous Catalysts

      Dr. Francisco G. Cirujano, Dr. Elena López-Maya, Dr. Marleny Rodríguez-Albelo, Dr. Elisa Barea, Prof. Jorge A. R. Navarro and Prof. Dirk E. De Vos

      Version of Record online: 14 SEP 2017 | DOI: 10.1002/cctc.201700784

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      Two steps forward… Copper-exchanged metal–organic frameworks (MOFs) show tunable basicity, activity, and selectivity in C−C bond-forming reactions. Herein, these MOFs are used as selective heterogeneous catalysts for the one-pot, two-step (Henry reaction/Michael-type addition) synthesis of neuroactive pharmaceutical intermediates starting from nitromethane and benzaldehyde.

  5. Full Papers

    1. Rapid Synthesis of Rhodium–Palladium Alloy Nanocatalysts

      Dr. Graham W. Piburn, Hao Li, Pranaw Kunal, Prof. Graeme Henkelman and Prof. Simon M. Humphrey

      Version of Record online: 14 SEP 2017 | DOI: 10.1002/cctc.201701133

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      A good mix: Near-monodisperse RhPd alloy nanoparticles are prepared by a rapid (30 s) hot-injection method under microwave heating. The particles are active hydrogenation catalysts and are more stable than pure Rh nanoparticles at longer reaction times. DFT studies show that Rh-to-Pd charge transfer permits tunability of H and alkene binding energies.

  6. Communications

    1. A Dumbbell CaBi2O4 Photoelectrode for Photoelectrochemical Water Splitting

      Xuan Wang, Dr. Zhihua Liu and Prof. Zhifeng Liu

      Version of Record online: 14 SEP 2017 | DOI: 10.1002/cctc.201700938

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      Lickety-split: A dumbbell-shaped CaBi2O4 nanostructure film is hydrothermally prepared and used as a photoelectrode for photoelectrochemical water splitting. This photoelectrode exhibits a high photocurrent density of 1.19 mA cm−2. The remarkable performance may be attributed to improved light absorption, an ideal band gap value, and efficient charge–hole pair separation and collection.

  7. Full Papers

    1. Auto-Reduction Behavior of Cobalt on Graphitic Carbon Nitride Coated Alumina Supports for Fischer–Tropsch Synthesis

      Hunmin Park, Kwang Young Kim, Dr. Duck Hyun Youn, Yo Han Choi, Dr. Won Young Kim and Prof. Dr. Jae Sung Lee

      Version of Record online: 13 SEP 2017 | DOI: 10.1002/cctc.201700613

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      Stay away! Graphitic carbon nitride (g-C3N4)-coated alumina (CN-Al) is investigated as a support material for a cobalt-based Fischer–Tropsch synthesis (FTS) catalyst. The g-C3N4 blocks the interaction between Co and alumina to hinder the formation of irreducible cobalt oxide species, and improves the dispersion of metallic Co species on the CN-Al support. Because of the improved dispersion and reducibility of the Co species on the CN-Al support, the catalytic FTS activity of Co/CN-Al is higher compared with the conventional Co/Al2O3 catalyst.

  8. Communications

    1. One-Step Synthesis of Dicyanobenzene-Derived Nitrogen-Doped Porous Carbon Monolayers: Porosity and Near-infrared Photoactivity

      Jing Tong, Xudong Hou, Shengjun Liu, Junxiang Zhang, Yanjun Ding, Yang Wang, Prof. Dr. Hangxun Xu and Prof. Dr. Bo Liu

      Version of Record online: 13 SEP 2017 | DOI: 10.1002/cctc.201700724

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      Beneath the layers: N-doped porous carbon (NPC) monolayers are synthesized and show great potential for gas storage with a H2 uptake of up to 2.96 wt % at 77 K and a CO2 adsorption capability of 23.4 wt % at 278 K and 0.1 MPa. This N-decorated carbon material, as the first near-IR (NIR)-triggered carbon photocatalyst, exhibits pronounced H2 production capabilities under full solar spectrum and NIR irradiation. NP=nanoparticle, TEA=triethylamine.

    2. In Situ Construction of Globe-like Carbon Nitride as a Self-Cocatalyst Modified Tree-like Carbon Nitride for Drastic Improvement in Visible-Light Photocatalytic Hydrogen Evolution

      Dr. Ting Song, Dr. Piyong Zhang, Jian Zeng, Prof. Tingting Wang, Dr. Atif Ali and Prof. Heping Zeng

      Version of Record online: 13 SEP 2017 | DOI: 10.1002/cctc.201700732

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      Unique morphological structure: Three carbon nitrides with different morphologies are shown to be highly effective visible-light photocatalysts for the photocatalytic H2 evolution reaction (HER). Globe/tree-like g-C3N4 shows high visible-light photocatalytic HER activity, apparent quantum efficiency, and stability. The enhanced photocatalytic activity might arise from the globe-like carbon nitride as a self-cocatalyst and hollow-tree-branch structures.

    3. Syndiotactic Poly(aminostyrene)-Supported Palladium Catalyst for Ketone Methylation with Methanol

      Lei Jiang, Dr. Fang Guo, Dr. Zhenghai Shi, Prof. Dr. Yang Li and Prof. Dr. Zhaomin Hou

      Version of Record online: 13 SEP 2017 | DOI: 10.1002/cctc.201700907

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      Lean on Me: A novel, recyclable, and highly active catalyst (Pd@sPS-N) for the methylation and methyl alkylation of a wide range of commercially accessible ketones with methanol as the methylation agent is established by immobilization of palladium nanoparticles on a unique amino-functionalized syndiotactic polystyrene.

    4. Two-Enzyme Hydrogen-Borrowing Amination of Alcohols Enabled by a Cofactor-Switched Alcohol Dehydrogenase

      Matthew P. Thompson and Prof. Nicholas J. Turner

      Version of Record online: 13 SEP 2017 | DOI: 10.1002/cctc.201701092

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      Designed to share: Rational engineering of the cofactor dependence in a nonselective alcohol dehydrogenase opens the door to a second generation of hydrogen-borrowing enzyme cascades for the amination of alcohols.

  9. Full Papers

    1. Highly Efficient Oxidation of Amines to Aldehydes with Flow-based Biocatalysis

      Dr. Martina L. Contente, Federica Dall'Oglio, Dr. Lucia Tamborini, Prof. Francesco Molinari and Prof. Francesca Paradisi

      Version of Record online: 13 SEP 2017 | DOI: 10.1002/cctc.201701147

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      Going with the flow: A new continuous-flow biocatalytic process for the oxidation of amines to aldehydes, commonly used as flavours and fragrances, was achieved in an enzyme-mediated single step. An ω-transaminase from Halomonas elongata was exploited as a heterogeneous biocatalyst in a packed-bed reactor, under highly favourable reaction conditions in the presence of pyruvate, generating l-alanine as a benign by-product.

    2. Platinum Supported on a Hybrid of Nickel and Tungsten Carbide on New-Diamond Electrocatalyst for Methanol Oxidation and Oxygen Reduction Reactions

      Prof. Dr. Yanhui Wang, Jing Su, Dr. Liang Dong, Pengjuan Zhao, Yan Zhang, Weiping Wang, Shaopei Jia and Prof. Dr. Jianbing Zang

      Version of Record online: 12 SEP 2017 | DOI: 10.1002/cctc.201700866

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      Diamonds are forever: A hybrid of nickel and tungsten carbide on new-diamond (Ni-WC/nD) is synthesized by a microwave-assisted method. Pt nanoparticles are deposited on the hybrid to form the Pt/Ni-WC/nD electrocatalyst. Pt/Ni-WC/nD is an active electrocatalyst for the methanol oxidation reaction and the oxygen reduction reaction.

    3. Layer Stacked Iodine and Phosphorus Co-doped C3N4 for Enhanced Visible-Light Photocatalytic Hydrogen Evolution

      Yuqing Huang, Qing Yan, Haijing Yan, Yunqi Tang, Dr. Shuai Chen, Zheying Yu, Prof. Chungui Tian and Prof. Baojiang Jiang

      Version of Record online: 12 SEP 2017 | DOI: 10.1002/cctc.201700786

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      Hetero-element doping is one of the most effective methods for band gap regulation of semiconductor photocatalysts. Here, a novel layer of stacked iodine and phosphorus co-doped carbon nitride (I/P-CN) was prepared. The obtained I/P-CN exhibited significantly enhanced visible-light photocatalytic hydrogen production compared with bulk carbon nitride.

    4. A General Strategy for Open-Flask Alkene Isomerization by Ruthenium Hydride Complexes with Non-Redox Metal Salts

      Zhanao Lv, Zhuqi Chen, Yue Hu, Wenrui Zheng, Haibin Wang, Dr. Wanling Mo and Prof. Dr. Guochuan Yin

      Version of Record online: 12 SEP 2017 | DOI: 10.1002/cctc.201700687

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      Open up: Simple non-redox metal salts can promote olefin isomerization dramatically in the form of commercially available metal hydride complexes in an open-flask system.

    5. Catalytic Materials Based on Surface Coating with Poly(ethyleneimine)-Stabilized Gold Nanoparticles

      Dr. Mariano Ortega-Muñoz, Dr. Victor Blanco, Prof. Fernando Hernandez-Mateo, Prof. F. Javier Lopez-Jaramillo and Prof. Francisco Santoyo-Gonzalez

      Version of Record online: 8 SEP 2017 | DOI: 10.1002/cctc.201700776

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      Obtaining catalytic gold surfaces: Branched poly(ethyleneimine) (bPEI2K) is a reductant and stabilizer suitable for the easy preparation of poly(ethyleneimine)-stabilized gold nanoparticles (PEI@AuNPs) under microwave irradiation. These hybrid nanoparticles exhibit affinity for various surfaces yielding effective and stable catalytic materials

    6. Designing an Effective Metal-Free Lewis Acid Catalyst for Ammonia-Borane Dehydrogenation: A DFT Investigation on Triarylboranes

      Sourav Bhunya and Dr. Ankan Paul

      Version of Record online: 8 SEP 2017 | DOI: 10.1002/cctc.201700416

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      Striking a fine balance: The effectiveness of triarylborane catalysts in ammonia-borane dehydrogenation is determined by the reactivity of the ion pair formed in situ, which is controlled by the hydride affinity of triarylboranes and the nature of solvent. By fine tuning these two factors, triarylborane catalysts effective at room temperature have been designed theoretically.

    7. Practical Aerobic Oxidation of Alcohols: A Ligand-Enhanced 2,2,6,6-Tetramethylpiperidine-1-oxy/Manganese Nitrate Catalyst System

      Kalle Lagerblom, Emi Lagerspets, Juha Keskiväli, Chris Cook, Dr. Filip Ekholm, Dr. Arno Parviainen and Prof. Dr. Timo Repo

      Version of Record online: 7 SEP 2017 | DOI: 10.1002/cctc.201700710

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      Simply efficient: A highly active and selective catalyst for the aerobic oxidation of alcohols was developed. The method is based on a 2,2,6,6-tetramethylpiperidine-1-oxy/Mn(NO3)2 catalyst, the activity of which is increased significantly by the addition of 2-picolinic acid as a coordinating ligand. The ligand-enhanced system is used for the oxidation of various primary alcohols to aldehydes using ambient air as the oxidant.

    8. Correlation of Sol–Gel Alumina-Supported Cobalt Catalyst Processing to Cobalt Speciation, Ethanol Steam Reforming Activity, and Stability

      Dr. Aline R. Passos, Prof. Dr. Leandro Martins, Prof. Dr. Sandra H. Pulcinelli, Prof. Dr. Celso V. Santilli and Dr. Valérie Briois

      Version of Record online: 7 SEP 2017 | DOI: 10.1002/cctc.201700319

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      Evaluation of the details: A careful investigation leads from the synthesis of sol–gel alumina with controlled surface properties to their impact on the cobalt interaction during catalyst preparation, the catalyst activity for hydrogen production, and catalyst deactivation.

    9. Ruthenium-Catalyzed Enantioselective Hydrogenation/Lactonization of 2-Acylarylcarboxylates: Direct Access to Chiral 3-Substituted Phthalides

      Bin Lu, Mengmeng Zhao, Guangni Ding, Dr. Xiaomin Xie, Lili Jiang, Dr. Virginie Ratovelomanana-Vidal and Prof. Zhaoguo Zhang

      Version of Record online: 7 SEP 2017 | DOI: 10.1002/cctc.201700695

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      Synthesis of synthons: The asymmetric hydrogenation and subsequent in situ lactonization with Ru-diphosphines results in the direct conversion of a series of 2-acylarylcarboxylates including 2-aroylarylcarboxylates into the corresponding optically active 3-substituted phthalides under mild reaction conditions.

    10. N-Hydroxyphthalimide Anchored on Diamond Nanoparticles as a Selective Heterogeneous Metal-free Oxidation Catalyst of Benzylic Hydrocarbons and Cyclic Alkenes by Molecular O2

      Dr. Juan F. Blandez, Dr. Sergio Navalón, Prof. Mercedes Álvaro and Prof. Hermenegildo García

      Version of Record online: 7 SEP 2017 | DOI: 10.1002/cctc.201700886

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      Diamond cats: In contrast to analogous active carbons and multiwall carbon nanotubes, OH functionalized diamond nanoparticles are suitable supports to develop heterogeneous oxidation catalysts based on anchored N-hydroxyphthalimide.

  10. Communications

    1. You have full text access to this OnlineOpen article
      Selective Photooxidation Reactions using Water-Soluble Anthraquinone Photocatalysts

      Dr. Wuyuan Zhang, Jenő Gacs, Prof. Isabel W. C. E. Arends and Dr. Frank Hollmann

      Version of Record online: 7 SEP 2017 | DOI: 10.1002/cctc.201700779

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      A bit of SAS: Water-soluble sodium anthraquinone sulfonate is used as an organo-photocatalyst for the aerobic oxidation of alkanes and alcohols. Preliminary experiments suggest that this reaction can be extended to amines and other functionalities.

  11. Full Papers

    1. Water-Soluble Iridium N-Heterocyclic Carbene Complexes for the Alkylation of Amines with Alcohols

      Ana Fernandes and Dr. Beatriz Royo

      Version of Record online: 6 SEP 2017 | DOI: 10.1002/cctc.201700678

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      Carbene keeps it clean: Water-soluble iridium N-heterocyclic carbene complexes that contain ester and amide groups on the wingtips display an excellent activity in the alkylation of amines with alcohols. Reactions are performed in water under base-free conditions and without the need for additives.

    2. Highly Active Ruthenium Supported on Magnetically Recyclable Chitosan-Based Nanocatalyst for Nitroarenes Reduction

      Kin Hong Liew, Mariana Rocha, Dr. Clara Pereira, Ana L. Pires, Dr. André M. Pereira, Prof. Dr. Mohd Ambar Yarmo, Prof. Dr. Joon Ching Juan, Dr. Rahimi M. Yusop, Dr. Andreia F. Peixoto and Prof. Dr. Cristina Freire

      Version of Record online: 6 SEP 2017 | DOI: 10.1002/cctc.201700649

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      Magnetic personality: A new Ru supported on a magnetically separable chitosan-based nanomaterial (Mn@CS@Ru) was prepared by wet impregnation based on ionic gelation using sodium borohydride. The Mn@CS@Ru nanocatalysts exhibit a remarkable catalytic performance toward the reduction of nitroarenes with high turnover frequencies up to 336.5 min−1.

  12. Communications

    1. Thin-Layered Cobalt-Based Catalysts on Stainless-Steel Microfibers for the Efficient Electrolysis of Water

      Yujin Gu, Insu Kim and Prof. Dr. Yoon Sung Nam

      Version of Record online: 6 SEP 2017 | DOI: 10.1002/cctc.201700382

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      True as steel: We report the efficient electrolysis of water by cobalt-based water-oxidation catalysts electrodeposited on a 3 D mat of stainless-steel microfibers to form a core–shell structure. Owing to the high surface activity of the cobalt-based catalysts and an enhanced local electric field, the core–shell catalysts exhibit exceedingly high catalytic performance for water oxidation at a neutral pH.

  13. Full Papers

    1. Mesoporous Ceria-Supported Gold Catalysts Self-Assembled from Monodispersed Ceria Nanoparticles and Nanocubes: A Study of the Crystal Plane Effect for the Low-Temperature Water Gas Shift Reaction

      Dr. Yeheng He, Sanya Du, Prof. Dr. Jianwei Li, Prof. Dr. Runduo Zhang, Prof. Dr. Xin Liang and Prof. Dr. Biaohua Chen

      Version of Record online: 5 SEP 2017 | DOI: 10.1002/cctc.201700645

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      Leaving on a crystal plane: We compare the water gas shift reaction activity over Au/CeO2 catalysts assembled by CeO2 nanocrystals with different naked crystal planes to illustrate the nanoscale crystal plane effect of the CeO2 {1 0 0} and {1 1 1} crystal planes.

  14. Communications

    1. Enhanced Activity in Methane Dry Reforming by Carbon Dioxide Induced Metal-Oxide Interface Restructuring of Nickel/Zirconia

      Matthias Steib, Yu Lou, Prof. Dr. Andreas Jentys and Prof. Dr. Johannes A. Lercher

      Version of Record online: 5 SEP 2017 | DOI: 10.1002/cctc.201700686

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      How to be active: The activity of Ni/ZrO2 catalysts for the dry reforming of methane is enhanced by activation and regeneration of the catalyst in the presence of CO2. In situ X-ray absorption and FTIR spectroscopy of adsorbed CO show that an increased metal–support interface created during CO2 treatment opens an additional pathway for CO2 activation and provides labile oxygen species for carbon removal.

  15. Full Papers

    1. Gold Doping in PtCu3/HSAC Nanoparticles and Their Morphological, Structural, and Compositional Changes during Oxygen Reduction Reaction Electrochemical Cycling

      Dr. Francisco Ruiz-Zepeda, Matija Gatalo, Dr. Primož Jovanovič, Dr. Andraž Pavlišič, Dr. Marjan Bele, Dr. Nejc Hodnik and Prof. Miran Gaberšček

      Version of Record online: 5 SEP 2017 | DOI: 10.1002/cctc.201700690

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      Dealloying stability and morphology: Gold-doped Pt-based nanoparticles supported on high-surface-area carbon (PtCu3/HSAC) show a higher catalyst durability owing to their reduced particle porosity relative to that of their nondoped analogues. The morphological features upon degradation match those obtained by kinetic Monte Carlo dealloying modeling.

    2. Fischer–Tropsch Synthesis Bifunctional Catalysts: Cobalt Supported on 3D Mesoporous Cellular Silica Foams Assembled by Using ZSM-5 Seeds

      Dr. Liang Wei, Dr. Yanxi Zhao, Dr. Yuhua Zhang, Dr. Chengchao Liu, Dr. Jingping Hong, Prof. Qi Xiao, Dr. Haifeng Xiong and Prof. Jinlin Li

      Version of Record online: 5 SEP 2017 | DOI: 10.1002/cctc.201700539

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      Well seeded: 3D mesoporous cellular silica foam (MCF) was functionalized by assembling ZSM-5 seeds to improve the acidity. Compared with Co/MCF, the cobalt bifunctional catalyst supported on the functionalized MCF-Z shows increased activity, lower deactivation rate, higher iso-paraffin/n-paraffin ratio, and lower C2–C4 alcohol selectivity.

    3. Rate and Selectivity Control in Thioether and Alkene Oxidation with H2O2 over Phosphonate-Modified Niobium(V)–Silica Catalysts

      Dr. Nicholas E. Thornburg and Dr. Justin M. Notestein

      Version of Record online: 5 SEP 2017 | DOI: 10.1002/cctc.201700526

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      Tunable catalyst selectivity: Niobium(V)–silica catalysts are shown to be highly active and selective thioether oxidation catalysts for H2O2 compared to benchmark titanium(IV)–silica. Simple modification of the highly active Nb-SiO2 active sites with phenylphosphonic acid results in an unusually active and selective catalyst for sulfoxidation, but not for alkene epoxidation nor overoxidation to the sulfone.

    4. Synthesis of ZnO Nanoparticles Assisted by N Sources and their Application in the Photodegradation of Organic Contaminants

      Gelson T. S. T. da Silva, Dr. Kele T. G. Carvalho, Dr. Osmando F. Lopes, Eliziana S. Gomes, Prof. Andréa R. Malagutti, Prof. Valmor R. Mastelaro, Dr. Caue Ribeiro and Prof. Henrique A. J. L. Mourão

      Version of Record online: 1 SEP 2017 | DOI: 10.1002/cctc.201700756

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      N-doped ZnO nanoparticles were obtained by an easy method assisted by urea or melamine molecules, which improved the physicochemical properties of ZnO. Modified ZnO showed high photoactivity for degradation of methylene blue dye and ethionamide antibiotic. The mechanism of the pollutants photodegradation catalyzed by as-synthesized ZnO is proposed.

    5. ZnI2/NEt3-Catalyzed Cycloaddition of CO2 with Propargylic Alcohols: Computational Study on Mechanism

      Dr. Jun Ma, Lu Lu, Dr. Qingqing Mei, Dr. Qinggong Zhu, Dr. Jiayin Hu and Prof. Buxing Han

      Version of Record online: 1 SEP 2017 | DOI: 10.1002/cctc.201700771

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      Take the middle course: Based on the DFT method, a complete picture of the ZnI2/NEt3-catalyzed mechanism of the cycloaddition of CO2 with propargylic alcohols is provided, and the essential roles of the metal ion and the base are revealed.

    6. Supported Vanadium Oxide Clusters in Partial Oxidation Processes: Catalytic Consequences of Size and Electronic Structure

      Dongmin Yun, Prof. Yang Song and Prof. José E. Herrera

      Version of Record online: 1 SEP 2017 | DOI: 10.1002/cctc.201700503

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      Cluster size matters: Vanadium oxide (VOx) anchored on titanium oxide was correlated to electronic structure. In situ Raman spectroscopy and temperature-programmed desorption (TPD) indicate that the presence of catalytically active VOx moieties is very sensitive to vanadia loading. Monomeric vanadia clusters have the lowest calculated oxygen defect formation energy, thus, ethanol partial oxidation takes place mostly over these monomeric nanoclusters.

    7. Design and Development of Efficient Bifunctional Catalysts by Tuning the Electronic Properties of Cobalt–Manganese Tungstate for Oxygen Reduction and Evolution Reactions

      Guruprakash Karkera, Tanmay Sarkar, Dr. Mridula Dixit Bharadwaj and Dr. Annigere. S. Prakash

      Version of Record online: 30 AUG 2017 | DOI: 10.1002/cctc.201700540

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      Defects are the key! The schematic representation of electronic states in MWO4 (M=Co, Mn) and their solid solution to show Co/Mn d, O p, and W d band centers in cobalt–manganese tungstates as an efficient bifunctional catalyst for oxygen reduction and evolution reactions.

    8. Fabrication of g-C3N4/Au/C-TiO2 Hollow Structures as Visible-Light-Driven Z-Scheme Photocatalysts with Enhanced Photocatalytic H2 Evolution

      Yajun Zou, Jian-Wen Shi, Dandan Ma, Zhaoyang Fan, Prof. Dr. Chunming Niu and Prof. Dr. Lianzhou Wang

      Version of Record online: 28 AUG 2017 | DOI: 10.1002/cctc.201700542

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      Z-scheme: Graphitic-C3N4/Au/C-TiO2 hollow spheres are constructed as an all-solid-state Z-scheme photocatalytic system with Au nanoparticles as the electron mediator. The as-synthesized g-C3N4/Au/C-TiO2 photocatalyst showed a remarkably enhanced photocatalytic H2 evolution rate under visible-light irradiation (λ>420 nm), which was 86 and 42 times higher than those of pure C-TiO2 and g-C3N4, respectively.

    9. Atomic Layer Deposition of Ni on Cu Nanoparticles for Methanol Synthesis from CO2 Hydrogenation

      Dr. Fuzhen Zhao, Miao Gong, Dr. Kun Cao, Yuhua Zhang, Prof. Jinlin Li and Prof. Rong Chen

      Version of Record online: 24 AUG 2017 | DOI: 10.1002/cctc.201700622

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      Preparation is key: Ni1Cu8/γ-Al2O3 catalysts were prepared by using two different methods (atomic layer deposition (ALD) and impregnation) and tested for methanol synthesis. The sample prepared by the ALD method has a higher CH3OH yield (1.5 mmol g−1 h−1) than the sample obtained by the impregnation method (0.7 mmol g−1 h−1). The highly dispersed alloy particles and stronger interaction between Cu and Ni are the key factors for improved yield.

    10. Enhanced Separation Efficiency of PtNix/g-C3N4 for Photocatalytic Hydrogen Production

      Lingling Bi, Xupeng Gao, Zhaochen Ma, Lijing Zhang, Prof. Dejun Wang and Prof. Tengfeng Xie

      Version of Record online: 23 AUG 2017 | DOI: 10.1002/cctc.201700640

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      Bimetals help: PtNix/g-C3N4 composites have a significantly higher photocatalytic hydrogen production than pure g-C3N4 because of the higher separation efficiency of photogenerated charges.

  16. Communications

    1. Platinum Complexes Bearing Bulky N-Heterocyclic Carbene Ligands as Efficient Catalysts for the Fully Selective Dimerization of Terminal Alkynes

      Dr. Patrycja Żak, Małgorzata Bołt, Jan Lorkowski, Prof. Dr. Maciej Kubicki and Prof. Dr. Cezary Pietraszuk

      Version of Record online: 23 AUG 2017 | DOI: 10.1002/cctc.201700580

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      Bulking up: Platinum(0) complexes of the type [(NHC)Pt(dvtms)] (dvtms=divinyltetramethyldisiloxane) containing bulky N-heterocyclic carbene (NHC) ligands are catalytically active in the fully regio- and stereoselective dimerization of terminal acetylenes. These are the first platinum complexes active in this transformation.

  17. Full Papers

    1. A Robust Ru/ZSM-5 Hydrogenation Catalyst: Insights into the Resistances to Ruthenium Aggregation and Carbon Deposition

      Bin Zhang, Qifan Wu, Prof. Chao Zhang, Xinluona Su, Ruhui Shi, Weiwei Lin, Yan Li and Prof. Fengyu Zhao

      Version of Record online: 23 AUG 2017 | DOI: 10.1002/cctc.201700664

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      Stability from the support: The excellent stability of a Ru/ZSM-5 catalyst for levulinic acid hydrogenation in water relies on the higher tetrahedral-coordinated Al content and preferable pore connectivity in well-crystallized ZSM-5 zeolite, which suppress Ru aggregation and leaching and the formation of carbonaceous residues in the acidic environment.

  18. Communications

    1. Palladium-Catalyzed Carbonylative Cyclization of Azoarenes

      Zechao Wang, Zhiping Yin, Fengxiang Zhu, Yahui Li and Prof. Dr. Xiao-Feng Wu

      Version of Record online: 22 AUG 2017 | DOI: 10.1002/cctc.201700679

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      CO-n game: An efficient protocol for the palladium-catalyzed carbonylation of azobenzenes is established through C(sp2)−H bond activation with Mo(CO)6 as the solid CO source. Reactions of both symmetrical and unsymmetrical azobenzenes proceed efficiently by this procedure with high regioselectivity. BQ=p-benzoquinone.

  19. Full Papers

    1. Polyesters Containing Chiral Imidazolidinone Salts in Polymer Main Chain: Heterogeneous Organocatalysts for the Asymmetric Diels–Alder Reaction

      Prof. Naoki Haraguchi, Thanh Liem Nguyen and Prof. Shinichi Itsuno

      Version of Record online: 22 AUG 2017 | DOI: 10.1002/cctc.201700723

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      Chirality within: Polyesters containing chiral imidazolidinone salts are synthesized by polycondensation or neutralization polymerization and applied to the asymmetric Diels–Alder reaction of trans-cinnamaldehyde and 1,3-cyclopentadiene. These heterogeneous polymeric chiral organocatalysts exhibit high enantioselectivity.

    2. Comparative Study of Diverse Copper Zeolites for the Conversion of Methane into Methanol

      Prof. Dr. Min Bum Park, Sang Hyun Ahn, Ali Mansouri, Dr. Marco Ranocchiari and Prof. Dr. Jeroen A. van Bokhoven

      Version of Record online: 22 AUG 2017 | DOI: 10.1002/cctc.201700768

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      Four reliable design rules are proposed for copper zeolites for conversion of methane into methanol: 1) composed with small pores; 2) containing a large amount of copper content in a well-dispersed manner; 3) activated at moderately high temperature under flowing oxygen; and 4) prepared from proton-form precursor.

    3. Hydrogenolysis of Glycidol as an Alternative Route to Obtain 1,3-Propanediol Selectively Using MOx-Modified Nickel-Copper Catalysts Supported on Acid Mesoporous Saponite

      Dr. Fiseha B. Gebrestadik, Dr. Jordi Llorca, Dr. Pilar Salagre and Dr. Yolanda Cesteros

      Version of Record online: 21 AUG 2017 | DOI: 10.1002/cctc.201700536

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      It takes three: Ni and Cu mono- and bimetallic catalysts modified with various types of acid oxides MOx are tested for the hydrogenolysis of glycidol as an alternative route to the hydrogenolysis of glycerol to obtain 1,3-propanediol. The presence of modifiers affected the dispersion and reducibility of the NiO particles and the strength and amount of acid sites. Among the modifiers tested, Re leads to the highest activity, a high propanediols selectivity, and the highest 1,3-propanediol/1,2-propanediol ratio.

    4. FeII/FeIII Doped Bi/BiOBr Hierarchical Microspheres as a Highly Efficient Catalyst for Degradation of Organic Contaminants at Neutral pH: The Role of Visible Light and H2O2

      Dr. Wentao Li, Dr. Xin Geng, Dr. Feng Xiao, Dr. Guangyu An and Prof. Dongsheng Wang

      Version of Record online: 21 AUG 2017 | DOI: 10.1002/cctc.201700549

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      Highly active catalyst: FeII/FeIII doped Bi/BiOBr (FBB) is an excellent visible-light, Fenton-like catalyst for the degradation of organic contaminants in wastewater. Visible light can increase the multiple transformation rate of ≡FeIII to ≡FeII over FBB in the presence of H2O2, producing more holes and hydroxyl radicals to degrade organic molecules.

  20. Communications

    1. A Titanium Dioxide Supported Gold Nanoparticle Catalyst for the Selective N-Formylation of Functionalized Amines with Carbon Dioxide and Hydrogen

      Dr. Takato Mitsudome, Dr. Teppei Urayama, Shu Fujita, Dr. Zen Maeno, Dr. Tomoo Mizugaki, Prof. Dr. Koichiro Jitsukawa and Prof. Dr. Kiyotomi Kaneda

      Version of Record online: 21 AUG 2017 | DOI: 10.1002/cctc.201700726

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      Feels like the first time: TiO2-supported Au nanoparticles are, for the first time, shown to promote the selective N-formylation of various amines to formamides in excellent yields without the hydrogenation of reducible functional groups. This catalyst system has significant advantages over homogeneous catalysts, including a simple workup procedure, high reusability, and applicability to a wide range of substrates.

    2. Conversion of Carbon Dioxide into Oxazolidinones Mediated by Quaternary Ammonium Salts and DBU

      Min Lv, Peng Wang, Dr. Dan Yuan and Prof. Yingming Yao

      Version of Record online: 15 AUG 2017 | DOI: 10.1002/cctc.201700594

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      Easy as 1-2-3! Oxazolidinones are prepared through a three-component reaction of CO2, epoxides, and amines promoted by a combination of Bu4NI and 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU). This metal-free and easily available catalytic system is applicable to a broad range of substrates, including conventionally challenging ones (e.g., aliphatic epoxides), at atmospheric pressure. Preliminary mechanistic studies suggest β-amino alcohols as intermediates.

  21. Full Papers

    1. High Performance and Active Sites of a Ceria-Supported Palladium Catalyst for Solvent-Free Chemoselective Hydrogenation of Nitroarenes

      Dr. Xiuxiu Shi, Prof. Xueguang Wang, Xingfu Shang, Xiujing Zou, Prof. Weizhong Ding and Prof. Xionggang Lu

      Version of Record online: 10 AUG 2017 | DOI: 10.1002/cctc.201700631

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      Solvent-free hydrogenation: Cerium oxide-supported palladium catalysts exhibit exciting catalytic activity and high chemoselectivity for solvent-free hydrogenation of a variety of substituted nitroarenes under mild reaction conditions. Pd2+ ions on the surface of PdxCe1−xO2−σ solid solutions are found to be the active sites. The superior catalytic performance can be attributed to the cooperative effect between the Pd2+ ions and unique surface sites of CeO2.

    2. Purification and Characterization of an Enone Reductase from Sporidiobolus salmonicolor TPU 2001 Reacting with Large Monocyclic Enones

      Dr. Kazunori Yamamoto, Yuko Oku, Dr. Atsutoshi Ina, Dr. Atsushi Izumi, Dr. Masaharu Doya, Dr. Syuji Ebata and Prof. Dr. Yasuhisa Asano

      Version of Record online: 9 AUG 2017 | DOI: 10.1002/cctc.201700244

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      No scent here: This is the first report of an enone reductase reducing carbon–carbon double bond of large monocyclic enones. The enone reductase is available for asymmetric synthesis of (S)-muscone from (E)-3-methylcyclopentadec-2-en-1-one, which has so far only been reported by chemical reduction using Ru-BINAP catalyst.

    3. Efficient Hydrogenation of CO2 to Methanol over Supported Subnanometer Gold Catalysts at Low Temperature

      Congyi Wu, Peng Zhang, Zhaofu Zhang, Lujun Zhang, Guanying Yang and Prof. Buxing Han

      Version of Record online: 7 AUG 2017 | DOI: 10.1002/cctc.201700872

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      Go for gold: Supported subnanometer gold catalysts deliver good catalytic activity and selectivity in hydrogenation of CO2 to methanol at low temperature. The combination of zirconia and the gold particles shows the best catalytic performance, with selectivity to methanol up to 73 % at 180 °C.

    4. Inkjet Printing of GaPd2 into Micro-Channels for the Selective Hydrogenation of Acetylene

      Martin Siebert, René R. Zimmermann, Prof. Dr. Marc Armbrüster and Prof. Dr. Roland Dittmeyer

      Version of Record online: 4 AUG 2017 | DOI: 10.1002/cctc.201700288

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      Print it! Different inks containing intermetallic GaPd2 nanoparticles were formulated and applied by inkjet printing into micro-structured reaction channels resulting in thin and homogeneous layers. GaPd2/α-Al2O3 showed excellent activity and selectivity for the semi-hydrogenation of acetylene.

  22. Communications

    1. Amorphous Cobalt Oxide Nanoparticles as Active Water-Oxidation Catalysts

      Zheng Chen, Dr. Zhiyao Duan, Zhiliang Wang, Prof. Xiaoyan Liu, Prof. Lin Gu, Prof. Fuxiang Zhang, Prof. Michel Dupuis and Prof. Can Li

      Version of Record online: 2 AUG 2017 | DOI: 10.1002/cctc.201700882

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      WOC of life: Amorphous cobalt oxide nanoparticles (2 nm) composed of one-dimensional chains of dimeric edge-sharing octahedra are extremely active towards water oxidation with a turnover frequency (TOF) value reaching 8.6 s−1 in the photocatalytic Ru(bpy)32+–Na2S2O8 (bpy=2,2′-bipyridyl) system.

  23. Full Papers

    1. Tuning the Catalytic Activity of Tertiary-Amine Functionalized Polyacrylonitrile Fibers by Adjusting the Surface Microenvironment

      Dr. Pengyu Li, Yuanyuan Liu, Dr. Jian Cao, Dr. Minli Tao and Prof. Dr. Wenqin Zhang

      Version of Record online: 26 JUL 2017 | DOI: 10.1002/cctc.201700515

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      Environmental control: A polyacrylonitrile fiber catalyst, with catalytic activity that can be controlled by tuning the microenvironment polarity, has been designed and applied to a cyanation reaction in water. The catalyst is easy to prepare and has excellent activity (80–98 %) and catalytic recyclability (at least 8 cycles). It also performs well in flow chemistry and scaled-up experiments, which indicates potential applications in industry.


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