| 拉曼光谱研究Pt电极上欠电位沉积Sn对甲醇氧化的影响 |
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| 引用本文： | 余春兴,李筱琴.拉曼光谱研究Pt电极上欠电位沉积Sn对甲醇氧化的影响[J].光散射学报,1999,11(3):223-226. |
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| 作者姓名： | 余春兴 李筱琴 |
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| 作者单位： | 厦门大学化学系固体表面物理化学国家重点实验室 |
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| 摘 要： | 本文采用拉曼光谱研究Ｐｔ电极上欠电位沉积（亚）单原子层的Ｓｎ对甲醇氧化的影响，初步的结果表明，欠电位沉积Ｓｎ促进了Ｐｔ上甲醇的电催化氧化，与纯Ｐｔ电极体系相比较，作为表面毒性中间物的ＣＯ在较负电位下即可被氧化。本文对其可能的机理进行了初步的讨论
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| 关 键 词： | 甲醇氧化 拉曼光谱 锡 欠电位沉积 |
Influence of UPD Sn on Methanol Oxidation at a Pt Electrode Studied by Raman Spectroscopy |
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| Abstract: | The influence of underpotential deposited (UPD) Sn on methanol oxidation at a Pt electrode has been investigated by Raman spectroscopy. The result shows that the UPD Sn promotes the methanol oxidation on the Pt surface. CO, as a poisoning intermediate species, can be oxidized at the more negative potential in comparison with that at the bare Pt electrode. The possible mechanisms involved are briefly discussed. |
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| Keywords: | methanol oxidation Raman spectroscopy tin underpotential deposition |
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