摘要
在离子液体1-乙基咪唑三氟乙酸盐(HEImTfa)中,采用循环伏安法在铂电极表面修饰聚吡咯(PPy),制得PPy-HEImTfa/Pt,并研究了其对甲酸的电催化氧化性能.与相同条件下的铂基底电极相比,PPy-HEImTfa/Pt对甲酸的电催化氧化性能有很大的提高.原位红外光谱表明,PPy-HEImTfa能降低中间体CO等对铂电极的毒化作用,促进甲酸直接氧化生成CO2.
A platinum electrode was modified with polypyrrole in the ionic liquid 1-ethylimidazolium trifluoroacetate （PPy-HEIm Tfa/Pt） using cyclic voltammetry, and its electrocatalytic performance for the oxidation of formic acid was tested. Compared to the Pt electrode, the electrocatalytic activity of PPy-HEImTfa/Pt for the oxidation of formic acid was greatly improved. The complete oxidation of formic acid to CO2 was followed by in situ FT-IR, which showed that with PPy-HEImTfa, formic acid oxidation occurred by a direct pathway mechanism and CO ooisoning was much decreased.
出处
《催化学报》
SCIE
EI
CAS
CSCD
北大核心
2009年第11期1073-1075,共3页
基金
浙江省自然科学基金(Y406381)
浙江省分析测试科技计划项目(2008F70029)
关键词
1-乙基咪唑三氟乙酸盐
聚吡咯
铂
甲酸
电催化氧化
1-ethylimidazolium trifluoroacetate
polypyrrole
platinum
formic acid
electrocatalytic oxidation
