| Pt-WO3/C电极表面活化处理对乙醇和CO的电催化氧化作用 |
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| 引用本文： | 孙芳,邬冰,曲微丽,高颖.Pt-WO3/C电极表面活化处理对乙醇和CO的电催化氧化作用[J].哈尔滨师范大学自然科学学报,2005,21(3):64-67. |
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| 作者姓名： | 孙芳 邬冰 曲微丽 高颖 |
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| 作者单位： | 哈尔滨师范大学;哈尔滨师范大学;哈尔滨师范大学;哈尔滨师范大学 |
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| 基金项目： | 黑龙江教育厅资助课题(105310852),哈尔滨师范大学校基金资助课题 |
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| 摘 要： | 运用一种新的电极表面活化处理的方法，使乙醇和CO在Pt-WO3／C电极上的电催化氧化活性大幅度提高．发现无论在中性溶液中还是在酸性溶液中，乙醇在表面活化处理后的Pt-WO3／C电极上起始氧化电位负移，氧化峰电流密度在酸性介质中增加到未表面活化处理前的2．1倍；中性介质中增加到表面处理前的1．9倍，其主要原因是表面活化处理后，一方面增加了催化剂Pt的活性表面，另一方面也促进了吸附的CO的电氧化，减少了CO对电极表面的毒化作用．
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| 关 键 词： | 乙醇 一氧化碳 电催化氧化 |
| 修稿时间： | 2005年4月10日 |
THE EFFECT OF SURFACE TREATED Pt-WO3/C ELECTRODE ON ETHANOL AND CO ELECTROOXIDATION |
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| Sun Fang,Wu Bing,Qu Weili,Gao Ying.THE EFFECT OF SURFACE TREATED Pt-WO3/C ELECTRODE ON ETHANOL AND CO ELECTROOXIDATION[J].Natural Science Journal of Harbin Normal University,2005,21(3):64-67. |
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| Authors: | Sun Fang Wu Bing Qu Weili Gao Ying |
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| Institution: | Harbin Normal University |
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| Abstract: | A new surface treatment which can greatly increase the catalytic activity of Pt-WO 3/C electrode on ethanol electro-oxidation was investigated. A new peak shoulder appeared on the surface treated Pt-WO 3/C electrode and the onset potential shifted negatively compared to untreated Pt-WO 3/C electrode in both acidic and neutral solution. The peak current on the surface treated Pt-WO 3/C electrode is as 2.1 times in acidic solution and 1.9 times in neutral solution as on the untreated Pt-WO 3/C electrode. The main reason is that the treatment can increase active surface of catalyst Pt and can promote the electro-oxidation of absorbed CO so as to enhance the catalyst CO tolerance. |
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| Keywords: | Ethanol Carbonic oxide Electrocatalytic oxidation |
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