| 吡啶羧酸在银电极表面随电极电位变化的表面增强拉曼光谱研究(英文) |
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| 作者姓名： | WENRui FANGYan |
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| 作者单位： | Beijing Key Lab for Nano-Photonics and Nano-Structure，Capital Normal University，BeiJing 100037，China |
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| 摘 要： | 本文通过表面增强拉曼散射研究了三种不同构型的吡啶羧酸—皮考酸、异烟酸和烟酸在粗糙银电极表面上的吸附形态随电极电位的变化关系。大量的表面结构信息可从丰富的表面拉曼信号及其随电极电位相应的变化而获得。分析表明在电极电位负移过程中皮考酸分子一直采取通过羧基和苯环上的N原子侧立吸附在银电极表面,与之不同的是,异烟酸分子和烟酸分子在表面的吸附状态都随电位改变发生了变化,我们对此进行了分析和解释
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| 关 键 词： | 吸附行为 表面增强拉曼散射(SERS) 皮考酸 异烟酸 烟酸 银电极 |
Potential-Dependent SERS Investigations on the Adsorption of Pyridine Carboxylic Acids on Silver |
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| WENRui FANGYan.Potential-Dependent SERS Investigations on the Adsorption of Pyridine Carboxylic Acids on Silver[J].Chinese Journal of Light Scattering,2005,17(1):64-66. |
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| Authors: | WEN Rui FANG Yan |
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| Abstract: | The potential-dependent SERS of the three pyridinecarboxylic acids (picolinic acid, isonicotinic acid, and nicotinic acid) on polycrystalline silver electrode are studied in this paper. Their surface geometries may be detected from the high quality potential-dependent SERS signals. With the varying of potential the adsorption behavior of picolinic acid is invariant, while the adsorption behavior of isonicotinic acid and nicotinic acid may change. The probable reasons are given. |
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| Keywords: | potential dependence adsorption behavior Surface Enhanced Raman Spectroscopy (SERS) pyridine carboxylic acids Ag electrode |
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