| 苯乙炔吸附在金电极上的现场表面增强拉曼光谱研究 |
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| 引用本文： | 徐敏敏,邹文君,姚建林,范晓敏,顾仁敖. 苯乙炔吸附在金电极上的现场表面增强拉曼光谱研究[J]. 化学学报, 2009, 67(2): 134-138 |
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| 作者姓名： | 徐敏敏 邹文君 姚建林 范晓敏 顾仁敖 |
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| 作者单位： | 苏州大学化学化工学院,苏州,1215123;苏州大学化学化工学院,苏州,1215123;苏州大学化学化工学院,苏州,1215123;苏州大学化学化工学院,苏州,1215123;苏州大学化学化工学院,苏州,1215123 |
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| 基金项目： | 国家自然科学基金,江苏省自然科学基金,教育部博士点资助项目,江苏省'六大人才高峰'基金 |
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| 摘 要： | 采用电化学现场表面增强拉曼光谱研究了苯乙炔在金电极上的吸附行为及表面反应过程. 负电位下拉曼光谱的变化表明, 苯乙炔分子的炔端碳与金属电极成键, 分子垂直吸附于金电极表面. 在所研究的负电位区间内, 分子在电极表面的吸附取向并未随电位发生改变. 电化学现场光谱研究表明, 苯乙炔分子随电位负移, 碳碳叁键被加氢还原. 通过对比苯乙烯的现场表面增强拉曼光谱发现, 在－0.6 V至－1.2 V的电位区间内, 苯乙炔经过中间步骤生成苯乙烯, 最终被完全加氢为苯乙烷.
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| 关 键 词： | 苯乙炔 金屯极 吸附 表面增强托曼光谱 表向反应 |
| 收稿时间： | 2008-02-12 |
| 修稿时间： | 2008-07-23 |
In Situ Surface-enhanced Raman Spectroscopic Studies of Phenylacetylene Adsorbed on Gold Electrode |
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| Xu inmin,Zou Wenjun,Yao Jianlin,Fan Xiaomin,Gu Renao. In Situ Surface-enhanced Raman Spectroscopic Studies of Phenylacetylene Adsorbed on Gold Electrode[J]. Acta Chimica Sinica, 2009, 67(2): 134-138 |
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| Authors: | Xu inmin Zou Wenjun Yao Jianlin Fan Xiaomin Gu Renao |
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| Affiliation: | (Department of Chemistry, Soochow University, Suzhou 215123, China) |
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| Abstract: | The surface reaction and adsorption behavior of phenylacetylene adsorbed on a gold electrode were studied by means of in situ electrochemical surface-enhanced Raman spectroscopy (SERS). The results showed that phenylacetylene would become phenylacetylide and it was perpendicular with respect to the gold surface. The adsorption mode of phenylacetylide did not prominently change in a certain potential re- gion. The change in the spectral features of SER spectra detected at more negative potential revealed tha... |
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| Keywords: | phenylacetylene gold electrode adsorption surface-enhanced Raman spectroscopy surface reaction |
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