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碱性溶液中纳米钯膜电极表面CO、CN-吸附的红外反射光谱研究
引用本文:孙世刚,蔡丽蓉,周志有,陈声培.碱性溶液中纳米钯膜电极表面CO、CN-吸附的红外反射光谱研究[J].光谱学与光谱分析,2000,20(5):601-602.
作者姓名:孙世刚  蔡丽蓉  周志有  陈声培
作者单位:厦门大学固体表面物理化学国家重点实验室,化学系,物化所,厦门,361005
基金项目:中国科学院资助项目,高等学校博士学科点专项科研项目,29833060,1999038403,,
摘    要:以原位FTIR反射光谱研究碱性介质中CO和CN^-在纳米Pd膜电极上的吸附和共吸附,进一步揭示了纳米薄膜材料的异常红外效应和CO与CN^-共吸附时的相互作用规律。

关 键 词:原位FTIRS  CO  CN^-  纳米钯膜电极  吸附

In Situ FTIR Spectrocopic Studies of CO and CN- Adsorbed on Electrode of Nanometer Thin Film of Palladium in Alkaline Solutions
Shigang SUN,Lirong CAI,Zhiyou ZHOU,Shengpei CHEN.In Situ FTIR Spectrocopic Studies of CO and CN- Adsorbed on Electrode of Nanometer Thin Film of Palladium in Alkaline Solutions[J].Spectroscopy and Spectral Analysis,2000,20(5):601-602.
Authors:Shigang SUN  Lirong CAI  Zhiyou ZHOU  Shengpei CHEN
Institution:State Key Laboratory for Physical Chemistry of Solid Surfaces, Department of Chemistry, Institute of Physical Chemistry, Xiamen University, 361005 Xiamen.
Abstract:The adsorption and coadsorption of CO and CN- - on electrode of nanometer thin film of palladium (nm-Pd/GC)was studied by usin g in situ FTIR spectroscopy.The results demonstrated that the nm-Pd/GC electrod e exhibited abnormal infrared effects (AIREs) in alkaline solutions as in acid s olutions.The characters of AIREs,i.e.,the inversion of the direc tion of IR band,the augmentation of FWHM and the significant enhancement of IR a bsorption by adsorbed species were observed in all cases of adsorption and coads orption of CO and CN--.It has been illustrated that strong interaction is exis ted between adsorbed CO and CN-- on nm-Pd/GC surface.The study has contribute d towards understanding the surface processes of chemisorption as well as to rev eal the origin of nanometer size-effects of thin film materials.
Keywords:nm-Pd/GC    CO    CN--    In situ FTIRS    AIRE  S
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