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Efficient mineralization of benzoic and phthalic acids in water by catalytic ozonation using a nickel oxide catalyst

28-Jul-2015 | Diana Magallanes; Julia L Rodriguez; TATYANA POZNIAK; MIGUEL A. Valenzuela; Luis A Lanturdo; Isaac Chairez, New Journal of Chemistry, 2015

Organic acids (OA) are usually used as a refractory model compounds that require prolonged reaction time for their mineralization by different treatments. In this study, benzoic and phthalic acids in aqueous solution, were significantly degraded and mineralized by catalytic ozonation in presence ...


Understanding the conformational behaviour of Ac-Ala-NHMe in different media. A joint NMR and DFT study.

28-Jul-2015 | Rodrigo A Cormanich; Roberto Rittner; Michael Buhl, Organic & Biomolecular Chemistry, 2015

The conformational behaviour of Ac-Ala-NHMe was studied in the gas-phase and in solution by theoretical calculations (B3LYP/aug-cc-pVDZ level) and experimental 1H NMR. The conformational preferences of this compound was shown to result from a complex interplay between the strengths of possible ...


Copper(I) cysteine complexes: efficient earth-abundant oxidation co-catalysts for visible light-driven photocatalytic H2 production

28-Jul-2015 | Yong Peng; Lu Shang; Yitao Cao; Geoffrey I. N. Waterhouse; Chao Zhou; Tong Bian; Li-Zhu Wu; Chen-Ho Tung; Tierui Zhang, Chemical Communication, 2015

A copper(i) cysteine complex generated by mixing Cu(ii) ions with cysteine in aqueous solution greatly enhanced the activity of CdSe photocatalysts for H2 production in aqueous solution under visible light excitation. The complex can enhance the H2 evolution rate by as much as 150 times, by ...


pH value manipulated phase transition, microstructure evolution and tunable upconversion luminescence in Yb3+-Er3+ codoped LiYF4/YF3 nanoparticles

28-Jul-2015 | Song Ye; Rongxuan Hu; Nan Jiang; Huiyun Wang; Deping Wang, Dalton Transactions, 2015

The pH value plays an important role in controlling the crystallization process and microstructure of the final products in the synthesis of nanocrystals with solvothermal method. This work reported the effect of the mother solution pH value on the precipitation of LiYF4 and YF3 nanoparticles, as ...


Thianthrene-functionalized polynorbornenes as high-voltage materials for organic cathode-based dual-ion batteries

28-Jul-2015 | Martin Erich Speer; Martin Kolek; Jean Jacques Jassoy; Jennifer Heine; Martin Winter; Peter Maria Bieker; Birgit Esser, Chemical Communication, 2015

Thianthrene-functionalized polynorbornenes were investigated as high-voltage organic cathode materials for dual-ion cells. The polymers show reversible oxidation reactions in solution and as a solid in composite electrodes. Constant current investigations displayed a capacity of up to 66 mAh g-1 ...


A high selectivity fluorescent chemosensor for cyanide anion based on a chalcone derivative in the present of iron (III) ion, and its capacity for living cell imaging in mixed aqueous system

28-Jul-2015 | wen yang; zhongqin cheng; yunlong xu; Jie Shao; weiqun zhou; Juan Xie; Mengying Li, New Journal of Chemistry, 2015

A donor-acceptor chalcone based 4-dimethylamino 4-fluorochalcone (1) is found exhibiting a distinct green fluorescence and has a good stability in CH3CN/water (V/V=1:9) buffer solution (Tris-HCl, pH=7.4), and that the in situ formed 1-Fe3+ complex upon addition of Fe3+ serves as a highly ...


Reactive Modeling of the Initial Stages of Alkoxysilane Polycondensation: Effects of Precursor Molecule Structure and Solution Composition

28-Jul-2015 | Joshua D Deetz; Roland Faller, Soft Matter, 2015

Reactive molecular dynamics simulations were performed to study the polycondensation of alkoxysilane in solution with alcohol and water. The dynamic formation of siloxane clusters and rings was observed with simulation time. Two mechanisms for the growth of siloxanes were observed: monomer ...


Temperature dependence of the rate constant for hydrogen atom reaction with Cl2−• in water by pulse radiolysis of aqueous HCl solution

27-Jul-2015 | Author(s): L. Kazmierczak, J. Szala-Bilnik, M. Wolszczak, D. Swiatla-Wojcik, Radiation Physics and Chemistry, 2015

Publication date: December 2015 Source:Radiation Physics and Chemistry, Volume 117 Author(s): L. Kazmierczak, J. Szala-Bilnik, M. Wolszczak, D. Swiatla-Wojcik The temperature dependence of the rate constant for the reaction of dichloride anion radical ( Cl 2 - • ) with ...


Current and potential oscillations during the electro-oxidation of bromide ions

27-Jul-2015 | Author(s): Jeffrey G. Bell, Jichang Wang, Journal of Electroanalytical Chemistry, 2015

Publication date: 1 October 2015 Source:Journal of Electroanalytical Chemistry, Volume 754 Author(s): Jeffrey G. Bell, Jichang Wang Electrochemical oxidation of bromide ions was investigated in aqueous solution, in which sustained oscillations in both current and potential were ...


In-situ photoisomerization for aggregation-induced emission of dibiphenyl fumaronitrile

27-Jul-2015 | Author(s): Hanbin Jeong, Kyoung Min Kim, Sung Cho, Jae Kwan Lee, Journal of Photochemistry and Photobiology A: Chemistry, 2015

Publication date: 1 October 2015 Source:Journal of Photochemistry and Photobiology A: Chemistry, Volume 311 Author(s): Hanbin Jeong, Kyoung Min Kim, Sung Cho, Jae Kwan Lee The synthesis and photochemical characteristics of a fumaronitrile (FN)-based π-conjugated molecule, dibiphenyl ...


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