Electro-Catalytic Oxidation of Methanol at Ni(OH)2 Nanoparticles-Poly (o-Anisidine)/Triton X-100 Film onto Phosphotungstic Acid-Modified Carbon Paste Electrode

Document Type : Research Article

Authors

1 Department of Chemistry, Faculty of Chemistry, North Tehran Branch, Islamic Azad University, 1913674711, Tehran, I.R. IRAN

2 Electroanalytical Chemistry Research Laboratory, Department of Analytical Chemistry, Faculty of Chemistry, University of Mazandaran, P.O. Box 47416-95447 Babolsar, I.R. IRAN

3 Nanochemistry Research Laboratory, Faculty of Chemistry, University of Mazandaran, P.O. BOX 47416-95447 Babolsar, I.R. IRAN

Abstract

In this work, Phosphotungstic Acid modified Carbon Paste Electrode (PWA-CPE) is used as a substrate for electro-polymerization of o-Anisidine (OA). Also, Triton X-100 (TX-100) surfactant is used as an additive for electrochemical polymerization of OA onto the PWA-CPE, which is investigated as a novel matrix for dispersion of nickel species. The prepared electrodes are characterized by scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), and electrochemical methods. Growth of the poly o-Anisidine (POA) film in the absence of TX-100 and/or PWA is very poor, while it considerably increases in the presence of them. The methanol oxidation and stability of the Ni/POA (TX-100)/PWA-CPE are investigated by various electrochemical techniques. It has been shown that the poly (o-Anisidine)/Triton X-100 (POA (TX-100)) at the surface of PWA-CPE improves the catalytic efficiency of the dispersed Ni(OH)2 nanoparticles towards methanol oxidation.

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References

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Iranian Journal of Chemistry and Chemical Engineering
Volume 38, Issue 2 - Serial Number 94
March and April 2019
Pages 37-48

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