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Oxidation of refractory sulfur-containing compounds with molecular oxygen catalyzed by vanadoperiodate

25-11-2014 | Nanfang Tang; Zongxuan Jiang; Can Li, Green Chemistry, 2014

A new vanadoperiodate [HIV9O28]3- has been synthesized by a simple, one-pot stoichiometric reaction of HIO4•2H2O with NaVO3 in aqueous solution, and then isolated as [C8H17N(CH3)3]3HIV9O28 by cation exchange. We found that [C8H17N(CH3)3]3HIV9O28 shows high catalytic activity in oxidation of ...

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TiO2/clay as a heterogeneous catalyst in photocatalytic/photochemical oxidation of anionic reactive blue 19

23-11-2014 | Author(s): Haithem Bel Hadjltaief , Maria Elena Galvez , Mourad Ben Zina , Patrick Da Costa, Arabian Journal of Chemistry, 2014

Publication date: Available online 10 November 2014 Source:Arabian Journal of Chemistry Author(s): Haithem Bel Hadjltaief , Maria Elena Galvez , Mourad Ben Zina , Patrick Da Costa A TiO2-coated Tunisian clay (TiO2–clay) was synthesized by a typical impregnation method. The ...

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Highly Porous Materials as Tunable Electrocatalysts for the Hydrogen and Oxygen Evolution Reaction

22-11-2014 | Marc Ledendecker, Guylhaine Clavel, Markus Antonietti, Menny Shalom, Advanced Functional Materials, 2014

The facile preparation of highly porous, manganese doped, sponge‐like nickel materials by salt melt synthesis embedded into nitrogen doped carbon for electrocatalytic applications is shown. The incorporation of manganese into the porous structure enhances the nickel catalyst's activity for the ...

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Destabilization of Thiolated Gold Clusters for the Growth of Single‐Crystalline Gold Nanoparticles and Their Self‐Assembly for SERS Detection

21-11-2014 | Guijian Guan, Michelle Low, Shuhua Liu, Yongqing Cai, Shuangyuan Zhang, Dongsheng Geng, Cui Liu, Zhongping Zhang, Yu ..., Particle & Particle Systems Characterization, 2014

Thiolate‐protected gold nanoclusters with high chemical stability are exploited extensively for fundamental research and utility in chosen applications. Here for the first time, the controlled destabilization of extraordinarily stable thiolated gold clusters for the growth of single‐crystalline ...

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Synthesis, Crystal Structure, and Biological Activities of Two Chiral Mononuclear Mn(III) Complexes

18-11-2014 | Bi‐Wei Wang, Lin Jiang, Si‐Sheng Shu, Bo‐Wen Li, Zhang Dong, Wen Gu, Xin Liu, Jin‐Lei Tian, Chirality, 2014

ABSTRACT Two new chiral mononuclear Mn(III) complexes, [MnL(R)Cl (C2H5OH)]•C2H5OH (1) and [MnL(S) (CH3OH)2]Cl•CH3OH (2), {H2L = (R,R)‐or (S,S)‐N,N’‐bis‐(2‐hydroxy‐1‐naphthalidehydene)‐cyclohexanediamine} were synthesized and characterized by various physicochemical techniques. Bond valence sum ...

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Effect of Strong Acid Functional Groups on Electrode Rise Potential in Capacitive Mixing by Double Layer Expansion

17-11-2014 | Marta C. Hatzell; Muralikrishna Raju; Valerie J. Watson; Andrew G. Stack; Adri C. T. van Duin; Bruce E. Logan, Environmental Science & Technology, 2014

The amount of salinity-gradient energy that can be obtained through capacitive mixing based on double layer expansion depends on the extent the electric double layer (EDL) is altered in a low salt concentration (LC) electrolyte (e.g., river water). We show that the electrode-rise potential, which ...

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Deciphering Ligands’ Interaction with Cu and Cu2O Nanocrystals Surface by NMR Solution Tools

13-11-2014 | Arnaud Glaria, Jérémy Cure, Kilian Piettre, Yannick Coppel, Cédric‐Olivier Turrin, Bruno Chaudret, Pierre Fau, Chemistry - A European Journal, 2014

Abstract The hydrogenolysis of [Cu2{(iPrN)2(CCH3)}2] in the presence of hexadecylamine (HDA) or tetradecylphosphonic acid (TDPA) in toluene leads to 6–9 nm copper nanocrystals. Solution NMR spectroscopy has been used to describe the nanoparticle surface chemistry during the dynamic phenomenon ...

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Radiolytic Method as a Novel Approach for the Synthesis of Nanostructured Conducting Polypyrrole

13-11-2014 | Zhenpeng Cui; Cecilia Coletta; Alexandre Dazzi; Patrice Lefrançois; Matthieu Gervais; Stéphane Néron; Samy Remita, Langmuir, 2014

In this study, a novel and extremely facile method for the synthesis of conducting polypyrrole (PPy) was achieved in aqueous solution. This radiolytic method is totally free of template and environmentally friendly compared with traditional chemical methods. According to ultraviolet–visible ...

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Oxidation of ascorbic acid by a (salen)ruthenium(VI) nitrido complex in aqueous solution

12-11-2014 | Qian Wang; Wai-Lun Man; William W. Y. Lam; Tai-Chu Lau, Chemical Communication, 2014

The oxidation of ascorbic acid (H2A) by [RuVI(N)(L)(MeOH)]+ in aqueous acidic solutions has the following stoichiometry: 2[RuVI(N)] + 3H2A → 2[RuIII(NH2–HA)]+ + A. Mechanisms involving HAT/N-rebound at low pH (≤2) and nucleophilic attack at the nitride at high pH (≥5) are proposed.

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Voltammetric Determination of 2‐Aminofluoren‐9‐one and Investigation of Its Interaction with DNA on a Glassy Carbon Electrode

11-11-2014 | Andrea Hájková, Jiří Barek, Vlastimil Vyskočil, Electroanalysis, 2014

Abstract Voltammetric behavior of the genotoxic environmental pollutant 2‐aminofluoren‐9‐one (2‐AFN) was investigated using direct current voltammetry (DCV) and differential pulse voltammetry (DPV) at a glassy carbon electrode (GCE) in both negative and positive potential regions. For the ...

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