The electrochemical behaviors of methylene blue on the surface of nanostructured NiWO4 prepared by coprecipitation method

被引：30

作者：

Farsi, Hossein ^{[1
,2
]}

Hosseini, Seyyed Amirhossein ^{[1
]}

机构：

[1] Univ Birjand, Dept Chem, Birjand, Iran

[2] Univ Birjand, Solar Energy Res Dept, Birjand, Iran

来源：

JOURNAL OF SOLID STATE ELECTROCHEMISTRY | 2013年 / 17卷 / 07期

关键词：

Nanostructure; Nickel tungstate; Carbon paste electrode; Methylene blue; ORGANIC REDOX FILMS; ELECTROCATALYTIC OXIDATION; LEUCOMETHYLENE BLUE; CYCLIC VOLTAMMETRY; SEMICONDUCTOR PHOTOELECTRODES; SUPRAMOLECULAR PHENOMENA; MELDOLAS BLUE; ELECTRODE; NADH; NI;

D O I：

10.1007/s10008-013-2068-5

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

A simple coprecipitation method was used for preparation of monoclinic nanostructured NiWO4 from an aqueous solution at a fixed pH and temperature of 7.0 and 80 A degrees C, respectively. The prepared material was characterized by X-ray diffraction, scanning electron microscopy, photoluminescence spectroscopy, and electrochemical measurements. Nano-NiWO4 was incorporated into a carbon paste electrode and by means of cyclic voltammetry; the electrochemical behavior of methylene blue on the surface of nano-NiWO4 was investigated. A mechanism on terms of obtained cyclic voltammograms showing one reduction peak and two sequential oxidation peaks was suggested by emphasizing on the stabilizing role of nano-NiWO4 for semi-methylene blue. A diffusion coefficient of 5.30 x 10(-6) cm(2)/s was gained for methylene blue.

引用

页码：2079 / 2086

页数：8

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