物理化学学报 >> 1997, Vol. 13 >> Issue (12): 1119-1122.doi: 10.3866/PKU.WHXB19971212

研究简报 上一篇    

尿素在银电极表面上吸附及缩合反应的SERS研究

徐海波,林海潮,于家康   

  1. 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,沈阳 110015
  • 收稿日期:1997-03-10 修回日期:1997-05-27 发布日期:1997-12-15
  • 通讯作者: 林海潮

SERS Study of Adsorption and Condensation Reaction of Urea on Silver Electrode

Xu Hai-Bo,Lin Hai-Chao,Yu Jia-Kang   

  1. The State Key Laboratory for Corrosion and Protection of Metals,Institute of Corrosion and Protection of Metals,Academic Sinica,Shenyang 110015
  • Received:1997-03-10 Revised:1997-05-27 Published:1997-12-15
  • Contact: Lin Hai-Chao

关键词: 尿素, 缩二脲, 缩合反应, 表面增强拉曼光谱

Abstract:

Adsorption behavior of urea on silver electrode and the influence of thiourea on its adsorption in sulphuric acid solution were investigated by polarization curves and Surface Enhanced Raman Spectroscopy. Urea was found to undergo a condensation reaction on roughened silver electrode. Biuret was the condensation compound, and was adsorbed in the protonated form on the silver surface. Obvious synergistic mechanism between thiourea and protonated biuret was proposed.

Key words: SERS, Ure, Biuret, Condensation reaction