引用本文:
钟起玲, 王敦清, 刘峰名, 粟晓琼, 施财辉, 田中群. 硫脲与多种阴离子共吸附行为的拉曼光谱研究[J]. 物理化学学报,
1998, 14(06): 562-568.
doi:
10.3866/PKU.WHXB19980616
Citation: Zhong Qi-Ling, Wang Dun-Qing, Liu Feng-Ming, Su Xiao-Qiong, Shi Cai-Hui, Tian Zhong-Qun. Raman Spectroscopic Studies on Coadsorption of Thiourea with Various Electrolyte Anions at Silver Electrodes[J]. Acta Physico-Chimica Sinica, 1998, 14(06): 562-568. doi: 10.3866/PKU.WHXB19980616
Citation: Zhong Qi-Ling, Wang Dun-Qing, Liu Feng-Ming, Su Xiao-Qiong, Shi Cai-Hui, Tian Zhong-Qun. Raman Spectroscopic Studies on Coadsorption of Thiourea with Various Electrolyte Anions at Silver Electrodes[J]. Acta Physico-Chimica Sinica, 1998, 14(06): 562-568. doi: 10.3866/PKU.WHXB19980616
English
Raman Spectroscopic Studies on Coadsorption of Thiourea with Various Electrolyte Anions at Silver Electrodes
Abstract:
Surface enhanced Raman spectroscopy (SERS)has been used to study the electrochemical coadsorption of TU at silver electrodes in solutions containing nitric acid ,sulphuric acid and perchloric acid respectively or any two of them. It was found that these different anions can be induce-coadsorbed simultaneously on the silver surface through the protonated amino group of TU in the mixed acids system. The coadsorption ability of the anions are in the order of SO42->NO3->CLO4- at the potentials of ≥-0.6V or CLO4- >NO3-> SO42- at the potentials of ≤-0.8V. The stability of TU on the surface of Ag electrode depends not only on the electrode potential but also on the nature of electrolyte anions coadsopbed.
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Key words:
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SERS
- / Thiourea
- / Electrolyte amion
- / Coadsorption
- / Silver electrodes
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