Methanol electrooxidation on platinum microparticles electrodeposited on poly (o-methoxyaniline) films
作者： Demetrius Profeti , Paulo Olivi
DOI: 10.1016/J.ELECTACTA.2004.06.013
关键词: Conductive polymer 、 Platinum 、 Catalysis 、 Electrolysis 、 Electrocatalyst 、 Inorganic chemistry 、 Overpotential 、 Cyclic voltammetry 、 Electrochemistry 、 Materials science
摘要: Abstract In this paper we have studied the electrooxidation of methanol on electrodes obtained through electrodeposition platinum microparticles poly ( o -methoxyaniline) films. The dependence electroactivity preparation parameters has been detailed. It shown that concentration monomer during formation polymeric films influences rate polymer growth and electrocatalytic activity. A maximum peak current observed for polymers grown to an anodic voltammetric charge approximately 75 mC cm −2 . increases when deposition is carried out in several steps instead a single potential electrolysis. conditions favour slower process, i.e., smaller H 2 PtCl 6 concentrations overpotential, lead enhancement currents. This attributed increase surface area as consequence decrease particle size.
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