ChemPlusChem

Cover image for Vol. 78 Issue 12

December 2013

Volume 78, Issue 12

Pages 1423–1544

  1. Cover Picture

    1. Top of page
    2. Cover Picture
    3. Cover Profile
    4. Graphical Abstract
    5. News
    6. Masthead
    7. Communications
    8. Full Papers
    1. You have free access to this content
      Cover Picture: Morphological Phase Diagram of Biocatalytically Active Ceria Nanostructures as a Function of Processing Variables and Their Properties (ChemPlusChem 12/2013) (page 1423)

      Dr. Tamilselvan Sakthivel, Dr. Soumen Das, Dr. Amit Kumar, Dr. David L. Reid, Ankur Gupta, Dr. Dean C. Sayle and Dr. Sudipta Seal

      Version of Record online: 15 NOV 2013 | DOI: 10.1002/cplu.201300368

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      The cover pictue shows a morphological phase diagram of CeO2 indicating regions of nanoparticle nanorod and nanocube formation after certain time periods of hydrothermal treatment. The phase boundaries are estimated by using experimental parameters (NaOH concentration (M), temperature (°C), and time (h)) of the hydrothermal process. The phase boundaries from nanoparticles to nanorods and nanocubes are observed to shift at higher temperature with low caustic concentration. The relative incremental increase in temperature suggests that nanorod and nanocube formation is more dependent on temperature than caustic concentration. Inset is the atomic simulation of nanostructured materials showing the growth direction. Details of this study are given in the Full Paper at page 1446 ff. by S. Seal and co-workers.

  2. Cover Profile

    1. Top of page
    2. Cover Picture
    3. Cover Profile
    4. Graphical Abstract
    5. News
    6. Masthead
    7. Communications
    8. Full Papers
    1. You have free access to this content
      Morphological Phase Diagram of Biocatalytically Active Ceria Nanostructures as a Function of Processing Variables and Their Properties (page 1424)

      Dr. Tamilselvan Sakthivel, Dr. Soumen Das, Dr. Amit Kumar, Dr. David L. Reid, Ankur Gupta, Dr. Dean C. Sayle and Dr. Sudipta Seal

      Version of Record online: 27 NOV 2013 | DOI: 10.1002/cplu.201300330

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      The field of rare-earth oxide (CeO2) nanostructured materials is moving so rapidly that there is an exciting development reported frequently.” This and more about the story behind the cover in the Cover Profile on page 1424  and about the research itself on page 1446.

  3. Graphical Abstract

    1. Top of page
    2. Cover Picture
    3. Cover Profile
    4. Graphical Abstract
    5. News
    6. Masthead
    7. Communications
    8. Full Papers
  4. News

    1. Top of page
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    3. Cover Profile
    4. Graphical Abstract
    5. News
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    7. Communications
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  5. Masthead

    1. Top of page
    2. Cover Picture
    3. Cover Profile
    4. Graphical Abstract
    5. News
    6. Masthead
    7. Communications
    8. Full Papers
    1. Masthead: ChemPlusChem 12/2013 (page 1436)

      Version of Record online: 10 DEC 2013 | DOI: 10.1002/cplu.201390047

  6. Communications

    1. Top of page
    2. Cover Picture
    3. Cover Profile
    4. Graphical Abstract
    5. News
    6. Masthead
    7. Communications
    8. Full Papers
    1. Recyclable, Biocompatible, Magnetic Titanium Dioxide Nanoparticles with Immobilized Enzymes for Biocatalysis (pages 1437–1439)

      Dr. Linjun Cai, Dr. Lei Chen, Lufeng Zhang, Guolong Lu, Xinyue He, Si Zhang, Dr. Hang Sun, Prof. Zhenning Liu and Prof. Bing Zhao

      Version of Record online: 11 OCT 2013 | DOI: 10.1002/cplu.201300241

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      Clean break: Magnetic nanoparticles are fabricated with mesoporous anatase shells, which are biocompatible for enzyme immobilization (see picture; HRP=horseradish peroxidase). The nanobiocatalyst can be easily collected with an external magnet and recycled. Immobilized enzymes with low activity after several cycles can be decomposed with UV radiation and thus the nanoparticles are recyclable for new enzyme immobilization.

    2. You have full text access to this OnlineOpen article
      An Amyloid-Fibril-Based Colorimetric Nanosensor for Rapid and Sensitive Chromium(VI) Detection (pages 1440–1445)

      Wai-Hong Leung, Dr. Lan Zou, Dr. Wai-Hung Lo and Dr. Pak-Ho Chan

      Version of Record online: 24 SEP 2013 | DOI: 10.1002/cplu.201300267

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      Appearing with a trace! A new colorimetric nanosensor for CrVI from the amyloid fibrils of hen lysozyme has been developed (see picture). This nanosensor, which makes use of hen lysozyme fibrils as CrVI binders and acidified diphenylcarbazide (DPC) as the colorimetric probe, can specifically detect CrVI at the ppb level without sample pretreatment and the use of advanced instruments.

  7. Full Papers

    1. Top of page
    2. Cover Picture
    3. Cover Profile
    4. Graphical Abstract
    5. News
    6. Masthead
    7. Communications
    8. Full Papers
    1. Morphological Phase Diagram of Biocatalytically Active Ceria Nanostructures as a Function of Processing Variables and Their Properties (pages 1446–1455)

      Dr. Tamilselvan Sakthivel, Dr. Soumen Das, Dr. Amit Kumar, Dr. David L. Reid, Ankur Gupta, Dr. Dean C. Sayle and Dr. Sudipta Seal

      Version of Record online: 2 OCT 2013 | DOI: 10.1002/cplu.201300302

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      Get in shape: Single-crystalline and monodispersed nanoparticles, nanorods, and nanocubes have been synthesized selectively by using a very simple, efficient, and economical hydrothermal process by changing the experimental parameters. The results have been used to construct a morphological phase diagram showing the phase boundaries of each type of structure (see figure).

    2. Metal Segregation in Bimetallic Co[BOND]Pd Carbide Carbonyl Clusters: Synthesis, Structure, Reactivity and Electrochemistry of [H6−nCo20Pd16C4(CO)48]n (n=3–6) (pages 1456–1465)

      Iacopo Ciabatti, Dr. Fabrizia Fabrizi de Biani, Dr. Cristina Femoni, Prof. Maria Carmela Iapalucci, Prof. Giuliano Longoni and Prof. Stefano Zacchini

      Version of Record online: 2 OCT 2013 | DOI: 10.1002/cplu.201300268

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      Kept apart: Bimetallic nanometric Co[BOND]Pd tetracarbide carbonyl clusters have been prepared by redox condensation. Their crystal structures, in which a cubic close-packed (ccp) Pd16 core is stabilised by four Co5C(CO)12 organometallic fragments, display a perfect segregation of the two metals (see figure).

    3. Cyclodextrin-Based Ionic Liquids as Enantioselective Stationary Phases in Gas Chromatography (pages 1466–1474)

      Dr. Nuno Costa, Dr. Sara Matos, Prof. Marco D. R. Gomes da Silva and Prof. M. Manuela A. Pereira

      Version of Record online: 2 OCT 2013 | DOI: 10.1002/cplu.201300229

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      In phase: Permethylated mono-6-hydroxy-α- and -β-cyclodextrins react with pyridine or 1-vinylimidazole in the presence of triflic anhydride in a solvent-free procedure to yield new room-temperature ionic liquids (ILs). These ILs have been used as stationary phases in gas chromatography; enantiomeric separations are achieved (see figure for whiskey lactone) with permethylated mono-6-deoxy-6-(pyridin-1-ium)-α-cyclodextrin trifluoromethanesulfonate.

    4. Hierarchical TiO2/V2O5 Multifunctional Membrane for Water Purification (pages 1475–1482)

      Peng Gao, Ming Hang Tai and Prof. Darren Delai Sun

      Version of Record online: 4 SEP 2013 | DOI: 10.1002/cplu.201300264

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      Clean enough to drink! A multifunctional membrane consisting of hierarchical TiO2/V2O5 composites can sustainably maintain a high water flux without a fouling problem, owing to the porous nanostructure of the hierarchical functional layer and heterojunctions between 1D TiO2 nanofibers and 2D V2O5 nanoplates (see picture).

    5. Highly Efficient Graphene-Based Ternary Composite Catalyst with Polydopamine Layer and Copper Nanoparticles (pages 1483–1490)

      Hua-Wen Hu, Prof. Dr. John H. Xin and Dr. Hong Hu

      Version of Record online: 19 AUG 2013 | DOI: 10.1002/cplu.201300124

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      To purify dye pollutants: A uniform adhesive polydopamine layer, well-dispersed Cu nanoparticles, and graphene base with huge surface area and superior electron-transfer capacity (see figure) integrate synergistically into a graphene-based ternary composite catalyst with an ultrahigh catalytic activity towards reduction of dye pollutants.

    6. Synthesis and Crystal Structures of Coordination Complexes Containing Cu2I2 Units and Their Application in Luminescence and Catalysis (pages 1491–1502)

      Huaixia Zhao, Dr. Xinxiong Li, Dr. Jinyun Wang, Dr. Liuyi Li and Prof. Ruihu Wang

      Version of Record online: 4 SEP 2013 | DOI: 10.1002/cplu.201300249

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      Making a difference: Five copper(I) complexes consisting of Cu2I2 units (see figure for example) have been prepared by using readily available bis- or tris-chelating nitrogen-containing ligands. These complexes possess different crystal structures, luminescence properties, and catalytic performances owing to the difference in steric and electronic properties of the organic ligands.

    7. Durable Superhydrophobic Surfaces Prepared by Spray Coating of Polymerized Organosilane/Attapulgite Nanocomposites (pages 1503–1509)

      Bucheng Li, Prof. Dr. Junping Zhang, Lei Wu and Prof. Dr. Aiqin Wang

      Version of Record online: 5 SEP 2013 | DOI: 10.1002/cplu.201300222

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      Like water off a duck′s back: A simple, low-cost approach for preparing superhydrophobic surfaces by spray coating has been developed (see figure). The polymerized organosilane/attapulgite nanocomposite surfaces feature high water contact angle, low sliding angle, and excellent durability. The superhydrophobic coatings can be applied to various substrates and are easily scaled up.

    8. Modular Synthesis of Optically Active Tröger’s Base Analogues (pages 1510–1516)

      Takuya Kamiyama, Merve Sinem Özer, Elisabeth Otth, Dr. Jan Deska and Dr. Ján Cvengroš

      Version of Record online: 5 SEP 2013 | DOI: 10.1002/cplu.201300295

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      Tipping the scales: For the first time, enantioselective catalysis was applied for the preparation of Tröger's base derivatives affording N-stereogenic building blocks not only in excellent enantiomeric purity but also in an easily scalable fashion (see scheme). Enzymatic kinetic resolution proved efficient to yield functionalized Tröger's bases, which can be subsequently modified by various chemical methods without any erosion of stereogenic information.

    9. Arginine Wettability and Impedance Dual-Signal Response by Aldehyde Calix[4]arene Self-Assembled Monolayers (pages 1517–1522)

      Lanlan Yang, Li Luo, Guifen Zhang, Fajun Miao, Xiaoyan Zhang, Dr. Demei Tian and Prof. Dr. Haibing Li

      Version of Record online: 19 SEP 2013 | DOI: 10.1002/cplu.201300236

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      Be my guest: A new aldehyde calix[4]arene (C4AH) was synthesized efficiently to give a yield of 90 % and has been used to form self-assembled monolayers (SAMS) by means of click chemistry to give a highly selective wettability and impedance sensor for arginine (Arg) (see scheme). The recognition mode based on the host–guest interaction has been studied by computational calculations and the possible mechanism has been analyzed.

    10. Introduction of an Isolation Chromophore into an “H”-Shaped NLO Polymer: Enhanced NLO Effect, Optical Transparency, and Stability (pages 1523–1529)

      Wenbo Wu, Prof. Cheng Ye, Prof. Jingui Qin and Prof. Zhen Li

      Version of Record online: 12 SEP 2013 | DOI: 10.1002/cplu.201300252

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      Get in shape: “H”-shaped NLO polymer P1 was designed and synthesized through Suzuki coupling copolymerization. An ”isolation chromophore” was introduced to improve the comprehensive performance of the designed P1. In comparison with normal “H”-shaped NLO polymers, which only contain one type of chromophore moiety, performance in almost all areas was improved.

    11. Structure, Stoichiometry, and Electrochemical Performance of Li2CoTi3O8 as an Anode Material for Lithium-Ion Batteries (pages 1530–1535)

      Jie Wang, Prof. Hailei Zhao, Yongna Shen, Zhihong Du, Xiaomin Chen and Qing Xia

      Version of Record online: 2 OCT 2013 | DOI: 10.1002/cplu.201300235

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      Less is more: The synthesized nonstoichiometric Li2CoTi2.682O8 exhibits high specific capacity (320 mA h g−1) and excellent rate capability (160 mA h g−1 at 20 C; 1 C corresponds to 300 mA g−1; see figure). The nonstoichiometric material with Ti-site deficiency provides a high theoretical specific capacity and a decreased bandgap for electron conduction, which ensures good electronic conductivity and therefore an excellent rate capability.

    12. Promoter Effects on Iron–Silica Fischer–Tropsch Nanocatalysts: Conversion of Carbon Dioxide to Lower Olefins and Hydrocarbons at Atmospheric Pressure (pages 1536–1544)

      Rhodri E. Owen, Dr. Justin P. O'Byrne, Dr. Davide Mattia, Dr. Pawel Plucinski, Dr. Sofia I. Pascu and Dr. Matthew D. Jones

      Version of Record online: 7 OCT 2013 | DOI: 10.1002/cplu.201300263

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      What does your metal do? The promotional effects of Group 11 and 13 metals on the performance of iron–silica catalyst systems under atmospheric pressure are reported (see picture). The addition of low loadings of gold results in a significant improvement in catalyst performance. Low loadings of indium are highly effective for increasing CO2 conversion, whereas at higher loadings the selectivity to lower olefins dramatically increases.

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