Preparation and Characterization of Mixed‐Valent Osmium Hexacyanoferrate/Silicomolybdate Hybrid Films and Their Electrocatalytic Properties |
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| Authors: | Chun‐Fang Tung A Balamurugan Shen‐Ming Chen |
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| Institution: | Electroanalysis and Bioelectrochemistry lab, Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, No.?1, Section?3, Chung‐Hsiao East Road, Taipei 106, Taiwan (ROC) |
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| Abstract: | A polynuclear mixed‐valent osmium hexacyanoferrate/silicomolybdate film electrode has been prepared using repetitive cyclic voltammetry. The cyclic voltammograms have been recorded for the deposition of a mixed‐valent osmium hexacyanoferrate/silicomolybdate hybrid film directly from the mixture of Os3+, Fe(CN6)3?, and SiMo12O404? ions from the acidic aqueous solutions. The polynuclear mixed‐valent osmium hexacyanoferrate/silicomolybdate film exhibited four redox couples. The electrocatalytic properties of the osmium hexacyanoferrate/silicomolybdate film electrode have been studied. The modified electrode has shown good electrocatalytic properties towards the oxidation of dopamine, ascorbic acid, epinephrine, norepinephrine, and reduction of IO3?, Fe3+. |
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| Keywords: | Osmium Hexacyanoferrate Polyoxomolybdate Film modified electrodes Electrocatalysis Cyclic voltammetry |
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