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Two-dimensional structure Au nanosheets are super active for the catalytic reduction of 4-nitrophenol

21-May-2015 | Yan Zhang; Zhimin Cui; Lidong Li; Lin Guo; Shihe Yang, Physical Chemistry Chemical Physics, 2015

Two-dimensional structure Au nanosheets with a polygon morphology and controlled thicknesses of [[similar]] 15 nm, [[similar]] 35 nm, and [[similar]] 50 nm were successfully synthesized by a one-step solution reduction method. Scanning and transmission electron microscopy (SEM and TEM), ...

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Preparation and characterization of polyelectrolyte/silver multilayer films on PET substrates and its antibacterial property

15-May-2015 | Deshan Cheng, Xia Lin, Lingling Fan, Guangming Cai, Jihong Wu, Weidong Yu, Polymer Composites, 2015

Silver nanoparticles (AgNPs) were synthesized by a chemical reduction method that reduced silver nitrate with sodium borohydride. Hydrolysis of poly(ethylene terephthalate) (PET) in concentrated alkaline solution produced a carboxyl‐enriched surface. The ultrathin multilayer films were ...

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Toward a Quantitative Understanding of Symmetry Reduction Involved in the Seed-Mediated Growth of Pd Nanocrystals

15-May-2015 | Hsin-Chieh Peng; Jinho Park; Lei Zhang; Younan Xia, Journal of the American Chemical Society, 2015

We report a quantitative analysis of the symmetry reduction phenomenon involved in the seed-mediated growth of Pd nanocrystals under dropwise addition of a precursor solution. In addition to the elimination of self-nucleation, the dropwise approach allows for the formation of a steady state for ...

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Lithium Pinacolone Enolate Solvated by Hexamethylphosphoramide

15-May-2015 | Jie Guang; Qiyong Peter Liu; Russell Hopson; Paul G. Williard, Journal of the American Chemical Society, 2015

We report the crystal structure of a substoichiometric, HMPA-trisolvated lithium pinacolone enolate tetramer (LiOPin)4·HMPA3 abbreviated as T3. In this tetramer one HMPA binds to lithium more strongly than the other two causing a reduction in spatial symmetry with corresponding loss of C3 ...

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Superior Lithium‐Ion Storage Properties of Mesoporous CuO–Reduced Graphene Oxide Composite Powder Prepared by a Two‐Step Spray‐Drying Process

14-May-2015 | Gi Dae Park, Yun Chan Kang, Chemistry - A European Journal, 2015

Abstract Mesoporous CuO–reduced graphene oxide (rGO) composite powders were prepared by using a two‐step spray‐drying process. In the first step, hollow CuO powders were prepared from a spray solution of copper nitrate trihydrate with citric acid and were wet milled to obtain a colloidal spray ...

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Impedimetric immunosensor for the detection of histamine based on reduced graphene oxide

12-May-2015 | Lotta E. Delle, Christina Huck, Matthias Bäcker, Frank Müller, Samuel Grandthyll, Karin Jacobs, Rainer Lilischkis, X ..., physica status solidi (a), 2015

In this work, we present a reduced graphene oxide‐based impedimetric histamine biosensor. Histamine as a bioamine mediates immune‐modulatory effects in acute inflammatory and allergic reactions. In a proof‐of‐principle approach, the low‐cost sensor platform determines low concentrations of ...

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The stability of aluminum‐manganese intermetallic phases under the microgalvanic coupling conditions anticipated in magnesium alloys

12-May-2015 | R. M. Asmussen, W. J. Binns, R. Partovi‐Nia, P. Jakupi, D. W. Shoesmith, Materials and Corrosion, 2015

The electrochemical behaviour of two Al‐Mn materials (Al‐ 5.5 at % Mn and Al‐ 13.5 at % Mn) has been studied in 0.275 M NaCl and 0.138 M MgCl2 solutions to simulate the cathodic environment of Al‐Mn particles during the corrosion of a Mg alloy. Upon polarization in NaCl solution to a potential ...

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Carbene Supported Dimer of Heavier Ketenimine Analogue with P and Si Atoms

12-May-2015 | Sudipta Roy; Birger Dittrich; Totan Mondal; Debasis Koley; A. Claudia Stückl; Brigitte Schwederski; Wolfgang Kaim; M ..., Journal of the American Chemical Society, 2015

A cyclic alkyl(amino) carbene (cAAC) stabilized dimer [(cAAC)Si(P-Tip)]2 (2) (Tip = 2,4,6-triisopropylphenyl) is reported. 2 can be considered as a dimer of the heavier ketenimine (R2C═C═N–R) analogue. The dark-red rod-shaped crystals of 2 were synthesized by reduction of the precursor, ...

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Highly Fluorescent Flavins: Rational Molecular Design for Quenching Protection Based on Repulsive and Attractive Control of Molecular Alignment

11-May-2015 | Haruka Suzuki, Ryo Inoue, Soichiro Kawamorita, Naruyoshi Komiya, Yasushi Imada, Takeshi Naota, Chemistry - A European Journal, 2015

Abstract Unprecedented intense fluorescent emission was observed for a variety of flavin compounds bearing a perpendicular cyclic imide moiety at the C7 position of an isoalloxazine platform. A series of alloxan‐substituted flavins was prepared selectively by reduction of the corresponding ...

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Novel water soluble neutral vanadium(IV)–antibiotic complex: Antioxidant, immunomodulatory and molecular docking studies

11-May-2015 | Author(s): Chitraniva Datta , Dharitri Das , Paritosh Mondal , Biswajit Chakraborty , Mahuya Sengupta , Chira R ..., European Journal of Medicinal Chemistry, 2015

Publication date: Available online 8 May 2015 Source:European Journal of Medicinal Chemistry Author(s): Chitraniva Datta , Dharitri Das , Paritosh Mondal , Biswajit Chakraborty , Mahuya Sengupta , Chira R. Bhattacharjee A novel water soluble five coordinate oxovanadium(IV) complex, ...

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