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Citation: YAN Yuerong, GAO Chengzhuang, ZHANG Yanqing, CHU Wengya, LI Shuangshuang, ZHAO Wei, ZHOU Qun, LI Xiaowei. Surface-enhanced Infrared Absorption Spectroscopy of the Para-mercaptobenzoic acid on the Cobalt-island Film[J]. Chinese Journal of Applied Chemistry, ;2015, 32(2): 221-224. doi: 10.11944/j.issn.1000-0518.2015.02.140177 shu

Surface-enhanced Infrared Absorption Spectroscopy of the Para-mercaptobenzoic acid on the Cobalt-island Film

1.
a College of Physics, Optoelectronics and Energy, Soochow University, Suzhou, Jiangsu 215006, China;
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b Department of Science and Technology, Jiaozuo Teachers College, Jiaozuo, He'nan 454000, China;
3.
c College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, Jiangsu 215123, China

Corresponding author: LI Xiaowei,
Received Date: 12 May 2014
Available Online: 28 September 2014
Fund Project: 河南省科技厅基础与前沿基金(112300410326) (112300410326)焦作市科技局基础与前沿项目(208,211) (208,211)

Protective agent free cobalt-island film with infrared enhancement effect was prepared on aluminum metal surface by replacement reaction. Its morphology and characteristics were investigated by using SEM, XRD and IR. Cobalt deposited on aluminum surface emerged as an island structure. Cobalt island films were formed by a large number of secondary cobalt particles and a small amount of cobalt particles through a close packing pattern. Cobalt's unique structure enables a significant enhancement effect on infrared absorption spectrum of organic molecules which are adsorbed on the surface of silver particles. The infrared spectroscopy of 1 mmol/L para-mercaptobenzoic acid has been greatly enhanced on the cobalt-island film. Therefore,the surface-enhanced infrared spectroscopy can be used for trace analysis and testing.
- cobalt-island films,
- para-mercaptobenzoic acid,
- surface-enhanced infrared absorption spectroscopy
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