Synthesis and Special Features of Electrochemical Behavior of Tungsten Oxide Deposited on Various Substrates

Tungsten oxides were electrochemically deposited from a metastable acidic solution of isopolytungstate on simple glassy carbon electrodes and glassy carbon electrodes coated with a film of a conductive polymer poly(3,4-ethylenedioxythiophene). It was found by the cyclic voltammetry method that the r...

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Published inRussian journal of general chemistry Vol. 88; no. 3; pp. 520 - 527
Main Authors Zhuzhel’skii, D. V., Yalda, K. D., Spiridonov, V. N., Apraksin, R. V., Kondrat’ev, V. V.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 01.03.2018
Springer
Springer Nature B.V
Subjects
Acidic oxides
Carbon
Chemistry
Chemistry and Materials Science
Chemistry/Food Science
Coated electrodes
Electrochemical analysis
Electrochemical reactions
Electrons
Glassy carbon
Oxides
Polymer films
Polymers
Scanning electron microscopy
Substrates
Tungsten
Tungsten compounds
Tungsten oxides
tungsten oxide
poly-3,4-ethylenedioxythiophene
electrochemical deposition
conductive polymer
isopolytungstate
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Summary:Tungsten oxides were electrochemically deposited from a metastable acidic solution of isopolytungstate on simple glassy carbon electrodes and glassy carbon electrodes coated with a film of a conductive polymer poly(3,4-ethylenedioxythiophene). It was found by the cyclic voltammetry method that the redox capacity of tungsten oxide deposits on the conductive polymer film is noticeably greater than on glassy carbon, which indirectly points to its high dispersion. The morphology of the tungsten oxide deposits was studied using scanning electron microscopy. The tungsten valence state in the composition of surface tungsten oxides was determined by the X-ray electron spectroscopy method.
ISSN:1070-3632
1608-3350
DOI:10.1134/S1070363218030209