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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 ...

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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 ...

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Solution or Gas Phase? Oxidation and Radical Formation in Electrospray Ionization Mass Spectrometry (ESI MS)

21-Jul-2015 | Imran Iftikhar, Anna Brajter‐Toth, Electroanalysis, 2015

Abstract The relationship between one‐electron (e−) oxidation processes and the formation of radical cations of endogenous and exogenous compounds in vivo is of considerable interest. This paper reports on the experiments that allow detection of ion signals that are consistent with the ...

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A Mechanistic Study on the Oxidative Degradation of Dibenzazepine Derivatives by Manganese(III) Complexes in Acidic Sulfate Media

21-Jul-2015 | Joanna Wiśniewska, Grzegorz Wrzeszcz, International Journal of Chemical Kinetics, 2015

ABSTRACT The oxidative degradation of tricyclic antidepressants (TCA) was studied in the presence of a large excess of the oxidizing agent manganese(III) and its reduced form manganese(II) sulfate in acidic media. The products were detected and identified using UV–vis, ESI‐MS, IR, and EPR ...

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Remediation of diesel‐contaminated soil using in situ chemical oxidation (ISCO) and the effects of common oxidants on the indigenous microbial community: a comparison study

21-Jul-2015 | Ku‐Fan Chen, Yu‐Chen Chang, Wan‐Ting Chiou, Journal of Chemical Technology & Biotechnology, 2015

Abstract Background In this study, batch experiments were conducted using diesel‐contaminated soil collected from a former gas station to evaluate the efficiency of diesel removal by in situ chemical oxidation (ISCO) and the effects of different oxidants on the indigenous microbial ...

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An Approach to More Accurate Model Systems for Purple Acid Phosphatases (PAPs)

21-Jul-2015 | Paul V. Bernhardt; Simone Bosch; Peter Comba; Lawrence R. Gahan; Graeme R. Hanson; Valeriu Mereacre; Christopher J. ..., Inorganic Chemistry, 2015

The active site of mammalian purple acid phosphatases (PAPs) have a dinuclear iron site in two accessible oxidation states (FeIII2 and FeIIIFeII), and the heterovalent is the active form, involved in the regulation of phosphate and phosphorylated metabolite levels in a wide range of organisms. ...

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A capillary electrophoresis method for speciation of iron (II) and iron (III) in pharmaceuticals by dual pre‐capillary complexation

20-Jul-2015 | Roberto Gotti, Jessica Fiori, Lino Liverani, Franco Spelta, ELECTROPHORESIS, 2015

Pharmaceutical iron sucrose is an iron (III) replacement for the treatment of iron deficiency anemia in patients with chronic kidney disease. The drug product (injection) is a colloidal solution of ferric hydroxide in complex with sucrose, containing 20 mg/mL elemental iron; according to USP, ...

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PBiP Pincer Complexes of Platinum, Palladium, and Iridium Featuring Metal–Metal Bonds Synthesized by Oxidative Addition of Bismuth–Halide Bonds

20-Jul-2015 | Carolin Tschersich; Beatrice Braun; Christian Herwig; Christian Limberg, Organometallics, 2015

The compound BiCl(o-PPh2-C6H4)2, PBiP-Cl, which in previous work had been shown to form complexes with pronounced M→Bi character, when metal(I) ions of group 11 or PtII and PdII ions were coordinated, behave differently in contact with late metal atoms in low oxidation states, known to easily ...

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Structural investigations of PuIII phosphate by X-ray diffraction, MAS-NMR and XANES spectroscopy

19-Jul-2015 | Author(s): Karin Popa, Philippe E. Raison, Laura Martel, Philippe M. Martin, Damien Prieur, Pier L. Sola ..., Journal of Solid State Chemistry, 2015

Publication date: October 2015 Source:Journal of Solid State Chemistry, Volume 230 Author(s): Karin Popa, Philippe E. Raison, Laura Martel, Philippe M. Martin, Damien Prieur, Pier L. Solari, Daniel Bouëxière, Rudy J.M. Konings, Joseph Somers PuPO4 was prepared by a solid ...

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Surface Activation of Pt Nanoparticles Synthesised by “Hot Injection” in the Presence of Oleylamine

17-Jul-2015 | Jo J. L. Humphrey, Sajanikumari Sadasivan, Daniela Plana, Verónica Celorrio, Robert A. Tooze, David J. Fermín, Chemistry - A European Journal, 2015

Abstract Oleylamine (OA) based “hot injection” colloidal synthesis offers a versatile approach to the synthesis of highly monodisperse metallic and multi‐metallic alloyed nanostructures in the absence of potentially toxic and unstable phosphine compounds. For application in heterogeneous ...

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