The influence of homocystine protonation on her catalytic activity in the process of electroreduction of Bi(III) ions in chlorates(VII)

被引：8

作者：

Grochowski, Mariusz ^{[1
]}

Nosal-Wiercinska, Agnieszka ^{[1
]}

机构：

[1] M Curie Sklodowska Univ, Fac Chem, Dept Analyt Chem & Instrumental Anal, M Curie Sklodowska Sq 3, PL-20031 Lublin, Poland

来源：

JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 2017年 / 788卷

关键词：

Bi(III) electroreduction; Homocystine; Catalytic activity; Active complexes; Kinetic parameters; ADSORPTIVE STRIPPING VOLTAMMETRY; ATOMIC-ABSORPTION-SPECTROMETRY; 2-STEP ELECTROREDUCTION; ZN2+ IONS; BISMUTH; SAMPLES; BUFFERS; MATRIX;

D O I：

10.1016/j.jelechem.2017.02.008

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The effects of homocystine protonation on the kinetics and the mechanism of multi-step process of Bi(III) electroreduction in chlorates(VII) with varying Water activity has been studied. The methodology of the study is based on electrochemical methods: DC polarography, square wave voltammetric (SWV) and cyclic voltammetric (CV), as well as Electrochemical Impedance Spectroscopy (EIS). The highest catalytic activity of homocystine was stated in 2 mol center dot dm(-3) chlorates(VII) for the greatest amount of sodium chlorate(VII). The mechanism of the catalytic effects of HCY is associated with the formation of active Bi-Hg(SR)(2) complexes under specific conditions present on the electrode surface. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：198 / 202

页数：5

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