| SERS光谱及电化学法研究硫脲在银电极上的吸附层结构 |
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| 引用本文： | 顾仁敖 田中群. SERS光谱及电化学法研究硫脲在银电极上的吸附层结构[J]. 光谱学与光谱分析, 1997, 17(4): 42-44 |
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| 作者姓名： | 顾仁敖 田中群 |
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| 作者单位： | [1]苏州大学化学系 [2]厦门大学化学系 |
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| 基金项目： | 家自然科学基金,江苏省教委自然科学基金 |
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| 摘 要： | 实验发现硫脲能在电极表面形成一吸附层并阻碍氢在电极表面的析出还原反应，此吸附层在电位约－０．６Ｖ时发生结构转变，进一步实验显示硫脲吸附层的结构在－０．９Ｖ时为疏松的，在－０．３Ｖ～－０．５Ｖ时为致密的，而在－０．８Ｖ～－０．６Ｖ时为两种结构的中间过渡态。
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| 关 键 词： | 硫脲 电化学 SERS 银电极 吸附层 |
PREPARATION AND PROPERTY INVESTIGATIONS OF NANOSIZED TITANIUM OXIDE MICROCRYSTALS |
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| R Gu,Z Qiao,Z Tian,W Li. PREPARATION AND PROPERTY INVESTIGATIONS OF NANOSIZED TITANIUM OXIDE MICROCRYSTALS[J]. Spectroscopy and Spectral Analysis, 1997, 17(4): 42-44 |
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| Authors: | R Gu Z Qiao Z Tian W Li |
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| Affiliation: | Departmant of Chemistry, Suzhou University, 215006 Suzhou. |
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| Abstract: | The structure of thiourea adsorption layer on silver electrode was studied by SERS and electrochemistry. It was found that the thiourea can be adsorbed on the electrode surface and can inhibit the reaction of hydrogen separation. And a change in structure of the thiourea adsorption layer on electrode surface took place at the voltage of about -0.6V. The further SERS experiment showed that the thiourea adsorption layer has a loose structure at about -0.9V and a compact structure at about -0.3V - -0.5V. The transition region is at about -0.6V - -0.8V. |
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| Keywords: | Titanium dioxide Nanosized microcrystal Microstructure X ray diffraction analysis |
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