铂修饰聚苯胺-聚硫堇复合电极对甲醇的电催化氧化Electrocatalytic Performance of Platinum-modified PAni/PTn Composite Electrode toward Methanol Oxidation
钟新仙;王志洪;银小玲;王延君;黄寒星;冯崎鹏;
摘要(Abstract):
苯胺(An)与硫堇(Tn)电化学聚合于石墨电极上,并采用电化学方法沉积Pt颗粒,制备得到Pt/PAni-PTn/石墨电极。通过扫描电子显微镜(SEM)对其形貌进行表征,利用循环伏安法(CV)、计时电流法(CA)考察了Pt/PAni-PTn/石墨电极对甲醇的电催化性能。实验结果表明,Pt颗粒均匀地分散在PAni-PTn复合膜上,PAni-PTn载体更有利Pt纳米颗粒的分散和粒径的减小,Pt/PAni-PTn/石墨电极对甲醇的电催化活性和稳定性明显优于Pt/石墨电极。
关键词(KeyWords): Pt;聚硫堇;聚苯胺;甲醇;电催化氧化
基金项目(Foundation): 广西青年科学基金资助项目(桂科青0832025)
作者(Authors): 钟新仙;王志洪;银小玲;王延君;黄寒星;冯崎鹏;
DOI: 10.16088/j.issn.1001-6600.2012.04.007
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