| 现场拉曼光谱研究非水体系中铂电极上甲醇的解离吸附 |
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| 引用本文： | 顾仁敖,曹文东,曹佩根,孙玉华,姚建林,任斌,田中群.现场拉曼光谱研究非水体系中铂电极上甲醇的解离吸附[J].光散射学报,2001,13(1):8-11. |
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| 作者姓名： | 顾仁敖 曹文东 曹佩根 孙玉华 姚建林 任斌 田中群 |
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| 作者单位： | 1. 苏州大学化学系,苏州,215006
2. 厦门大学固体表面物理化学国家重点实验室,化学系,厦门,361005 |
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| 基金项目： | 国家自然科学基金，厦门大学固体表面物理化学国家重点实验室开放课题资助项目 |
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| 摘 要： | 本文在共焦显微拉曼系统上 ,利用表面增强拉曼散射效应 ( SERS)初步研究了非水体系中甲醇在粗糙铂电极上的解离吸附过程。结果表明 :甲醇在粗糙铂电极上解离吸附后产生了毒性中间物 CO,在较负的电位区间内 ,H与 CO共吸附于电极表面并影响 CO的吸附行为 ,随电位的正移 ,υPt- C和 υC- O的变化可以用电化学 Stark效应来进行解释。
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| 关 键 词： | 表面增强拉曼散射(SERS) 非水体系 甲醇 铂电极 |
| 文章编号： | 1004-5929(2001)01-0008-04 |
In situ Raman Spectroscopy Studies on the Dissociation of Methanol on a Platinum Electrode in a Nonaqueous System |
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| GU Ren ao ,CAO Wen dong ,CAO Pei gen ,SUN Yu hua ,YAO Jian lin REN Bin ,TIAN Zhong qun.In situ Raman Spectroscopy Studies on the Dissociation of Methanol on a Platinum Electrode in a Nonaqueous System[J].Chinese Journal of Light Scattering,2001,13(1):8-11. |
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| Authors: | GU Ren ao CAO Wen dong CAO Pei gen SUN Yu hua YAO Jian lin REN Bin TIAN Zhong qun |
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| Institution: | GU Ren ao 1*,CAO Wen dong 1,CAO Pei gen 1,SUN Yu hua 1,YAO Jian lin 2 REN Bin 2,TIAN Zhong qun 2 |
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| Abstract: | Based on a confocal microprobe Raman system, the dissociation process of methanol on a roughened platinum electrode in a non agueous system was investigated by SERS. It is found that upon dissociation, carbon monoxide was produced on the surface as a poisoning intermediate. At relative negative potentials, H co adsorbs with CO on the electrode surface, thus affecting the properties of the adsorbed CO and its spectral feature. The variation of υ Pt C and υ C O with increasing potential can be explained by the electrochemical Stark effect.Key wrods:SERS; non aqueous system; methanol; platinum electrode |
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| Keywords: | SERS non aqueous system methanol platinum electrode |
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