| 硫脲和尿素在银电极上吸附行为的电化学和SERS研究 |
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| 引用本文： | 徐海波,余家康,董俊华,林海潮,曹楚南.硫脲和尿素在银电极上吸附行为的电化学和SERS研究[J].腐蚀科学与防护技术,1997,9(4):46-51. |
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| 作者姓名： | 徐海波 余家康 董俊华 林海潮 曹楚南 |
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| 作者单位： | 中国科学院金属腐蚀与防护研究所金属腐蚀与防护国家重点实验室 |
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| 基金项目： | 国家自然科学基金项目，中科院百人计划资助项目 |
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| 摘 要： | 利用表面增强拉曼光谱(SERS)和极化曲线的方法研究了硫脲和尿素在H2SO4溶液中银电极上的吸附行为.结果表明:硫脲参与了银的阳极溶解反应.尿素在银电极表面上发生了缩合反应,产物为缩二脲,缩二脲以质子化的形式物理吸附在银表面上
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| 关 键 词： | 表面增强拉曼光谱 硫脲 尿素 缩二脲 吸附 |
| 收稿时间： | 1997-07-25 |
| 修稿时间： | 1997-07-25 |
SERS AND ELECROCHEMICAL STUDIES OF ADSORPTION OF THIOUREA AND UREA AT SILVER ELECTRODE |
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| XU Haibo,YU Jiakang,DONG Junhua,LIN Haichao,CAO Chu''''nan.SERS AND ELECROCHEMICAL STUDIES OF ADSORPTION OF THIOUREA AND UREA AT SILVER ELECTRODE[J].Corrosion Science and Protection Technology,1997,9(4):46-51. |
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| Authors: | XU Haibo YU Jiakang DONG Junhua LIN Haichao CAO Chu'nan |
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| Abstract: | Adsorption behaviors of thiourea and urea at the silver electrode in sulphuric acid solution were investigated using polarization curves and Raman spectroscopy. It was shown that thiourea took part in the reaction of anodic dissolution of siver,and was parallelly adsorbed on the surface of the silver electrode. Urea was found to have a condensation reaction at the roughened silver electrode. Biuret is the product of condensation reaction, and is adsorbed physically through the protonated way on the surface of the silver electrode. |
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| Keywords: | SERS thiourea urea biuret adsorption |
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