Promoting Effect of Chemical Self-Assembled Polyaniline Nanofibers and Electro-Polymerized Polyaniline in Formic Acid Electro-Oxidizing Reaction

Abstract:

In order to enhance catalytic properties of palladium or gold/palladium alloy on polyaniline surface, highly pure PANI nanofibers doped with phosphoric acid were synthesized via chemical self-assembled method. Its general morphology was observed by scanning electron microscopy analysis. The deposition of palladium or gold/palladium alloy on PANI nanofibers was accomplished through reducing reaction of PdCl₂ or PdCl₂/HAuCl₄ in aqueous solution by NaBH₄. Pd/PANI nanofibers or Au/Pd/PANI nanofibers have been evaluated for catalytic activity toward formic acid oxidation reaction. Palladium/PANI nanofibers or palladium/gold/PANI nanofibers on glass carbon electrodes exhibit effective electro-catalytic activity since the PANI nanofibers play excellent promoting role.

• Periodical: Materials Science Forum (Volume 852)
• Pages: 646-652
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.852.646
• Online since: April 2016
• Authors: Yong Sheng Yang, Feng Zhao
• Keywords: Electro-Catalysis, Formic Acid, Nanofibers, Palladium, Polyaniline

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