| MoOx、WOx对PtRu/C催化剂甲醇电氧化作用的影响 |
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| 引用本文： | 陈胜洲,董新法,钟文健,林维明.MoOx、WOx对PtRu/C催化剂甲醇电氧化作用的影响[J].电源技术,2004,28(8):498-500. |
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| 作者姓名： | 陈胜洲 董新法 钟文健 林维明 |
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| 作者单位： | 华南理工大学,化工学院,广东,广州,510641 |
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| 摘 要： | 采用甲酸还原的方法制备了PtRu/C催化剂,溶胶-浸渍的方法制备了PtRuWOx /C、PtRuMoOx /C催化剂,通过循环伏安法和电流-电位极化法研究了催化剂对甲醇的电氧化作用。结果表明,MoOx ,WOx 组分对甲醇的电氧化具有促进作用。通过饱和吸附CO溶出电量测定三种电催化剂的电化学表面积,发现MoOx 、WOx 组分对CO无吸附作用,但能有效地催化CO的氧化。
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| 关 键 词： | 甲醇 电氧化 电催化剂 直接甲醇燃料电池 |
| 文章编号： | 1002-087X(2004)08-0498-03 |
| 修稿时间： | 2003年10月15 |
Effect of metal oxides(Mo,W) as co-catalysts for the electro-oxidation of methanol on carbon-supported platinum-ruthenium |
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| CHEN Sheng-zhou,DONG Xin-fa,ZHONG Wen-jian,LIN Wei-ming.Effect of metal oxides(Mo,W) as co-catalysts for the electro-oxidation of methanol on carbon-supported platinum-ruthenium[J].Chinese Journal of Power Sources,2004,28(8):498-500. |
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| Authors: | CHEN Sheng-zhou DONG Xin-fa ZHONG Wen-jian LIN Wei-ming |
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| Abstract: | An investigation was carried out in the electro-oxidation of methanol on a carbon-supported ternary PtRu catalysts in half cell experiments, by cyclic voltammetry and stationary current-voltage measurements.The materials were prepared by formic acid reduction and impregnate of metal oxide collodial sols.Using stripping charge of saturated CO coverage as determination of specific electrochemical surface area , the results demonstrated that MoOx , WOx had no adsorption on CO. It was found that the introduction of metal oxidation (MoOx , WOx ) led to the improvement of catalytic activity towords methanol electro-oxidation. |
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| Keywords: | methanol anodic methanol oxidation electro-catalyst direct methanol fuel cell(DMFC) |
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