Electrocatalysis of Template-Electrosynthesized Cobalt−Porphyrin/Polyaniline Nanocomposite for Oxygen Reduction

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• 作者：Qin Zhou ; Chang Ming Li ; Jun Li ; Juntao Lu
• 刊名：Journal of Physical Chemistry C
• 出版年：2008
• 出版时间：November 27, 2008
• 年：2008
• 卷：112
• 期：47
• 页码：18578-18583
• 全文大小：199K
• 年卷期：v.112,no.47(November 27, 2008)
• ISSN：1932-7455

文摘

Nanocomposite cobalt−porphyrin/polyaniline was one step-synthesized on a glassy carbon electrode in a solution containing aniline and cobalt−porphyrin, in which J-aggregates were assembled from cobalt−porphyrin and functioned as templates for polyaniline electropolymerization. The nanocomposite thus formed showed porous structures composed of nanorods that were 3050 nm in diameter and about a 0.5 μm in length. The nanocomposite -coated electrode was able to catalyze oxygen reduction with the number of electrons involved being close to 4. In 1 M HCl, the nanocomposite electrode performed comparably to a platinum disk electrode, demonstrating its potential as a non-novel metal electrocatalyst for oxygen reduction reaction.