Document Type: Research Article
Department of Chemistry, Faculty of Science, Mazandaran University, Mazandaran , Iran
Department of Chemistry, Faculty of Chemistry, Islamic Azad University, North Tehran Branch, 1913674711, Tehran, Iran
University of Mazandaran, Babolsar, Iran
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 catalytic efficiency of the dispersed Ni(OH)2 nanoparticles towards methanol oxidation.