| 草酸在PPy-HEImTfa电极上的电催化性能及其机理 |
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| 引用本文： | 沈振陆,李美超,马淳安,刘艳娜.草酸在PPy-HEImTfa电极上的电催化性能及其机理[J].化工学报,2009,60(4):918-922. |
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| 作者姓名： | 沈振陆 李美超 马淳安 刘艳娜 |
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| 作者单位： | 浙江工业大学化学工程与材料学院，绿色化学合成技术国家重点实验室培育基地;浙江工业大学分析测试中心，浙江 杭州 310032 ; |
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| 基金项目： | 浙江省自然科学基金项目(Y406381);;浙江省分析测试科技计划项目(2008F70029)~~ |
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| 摘 要： | 以离子液体1-乙基咪唑三氟乙酸盐为介质，采用恒电流方法在铂电极表面合成了导电聚合物聚吡咯（PPy-HEImTfa）。与相同条件下在硫酸溶液中合成的聚吡咯（PPy-H2SO4）和铂电极相比，PPy-HEImTfa对草酸的电催化活性有了很大的改善。电化学原位红外光谱分析表明：在聚吡咯表面，草酸可经电氧化生成CO2，其氧化中间体主要是吸附态COOH;在高电位下，聚吡咯非常稳定，不易发生过氧化。
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| 关 键 词： | 聚吡咯 1-乙基咪唑三氟乙酸盐 草酸 原位红外光谱 |
| 收稿时间： | 2008-12-3 |
| 修稿时间： | 2009-1-9
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Oxalic acid electro-oxidation on polypyrrole electrode prepared in 1-ethylimidazolium trifluoroacetate and its mechanism |
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| SHEN Zhenlu,LI Meichao,MA Chunan,LIU Yanna.Oxalic acid electro-oxidation on polypyrrole electrode prepared in 1-ethylimidazolium trifluoroacetate and its mechanism[J].Journal of Chemical Industry and Engineering(China),2009,60(4):918-922. |
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| Authors: | SHEN Zhenlu LI Meichao MA Chunan LIU Yanna |
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| Affiliation: | 1College of Chemical Engineering and Materials Science;State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology;Zhejiang University of Technology;2Research Center of Analysis and Measurement;Hangzhou 310032;Zhejiang;China |
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| Abstract: | Polypyrrole(PPy)was prepared galvanostatically in an ionic liquid 1-ethylimidazolium trifluoroacetate(HEImTfa),and its electrocatalytic property for electro-oxidation of oxalic acid was investigated.As compared with PPy prepared in H2SO4solution under the same conditions and platinum,the electrocatalytic activity of PPy-HEImTfa was greatly improved.In situ FTIR results showed that oxalic acid could be electro-oxidized to CO2 with an intermediate,adsorbed COOH.In addition,the polypyrrole was very stable and ... |
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| Keywords: | polypyrrole 1-ethylimidazolium trifluoroacetate oxalic acid in situ FTIR |
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