载钯分子筛修饰电极上CO吸附的原位红外反射光谱研究  

In Situ FTIR Studies of CO Adsorption on Palladium Loading Zeolite Elec trode

作　　者：姜艳霞[1] 丁楠[1] 郑明森[1] 陈声培[1] 杨毅芸[1] 孙世刚[1] 陈国良[2] 

机构地区：[1]固体表面物理化学国家重点实验室,厦门大学化学系,物化所,厦门361005 [2]漳州师范大学化学系,漳州363000

出　　处：《光谱学与光谱分析》2000年第5期614-615,共2页Spectroscopy and Spectral Analysis

基　　金：国家自然科学基金资助项目!(2 99730 35)

摘　　要：制备载Pd的分子筛电极 ,以CO吸附为探针结合电化学原位FTIR反射光谱 ,首次发现限定在分子筛超笼中的纳米Pd微粒对CO的吸附具有增强红外吸收效应。Adsorption of CO on palladium loading zeolite el ectrode supported on Pt or GC substrate was studied by in situ MSFTIR spectrosco py.The results demonstrated that the geometry of faujasite supercages favors the formation of bridge-bonded CO species.The enhanced IR adsorption of CO adsorbe d on Pd clusters located in the supercages of zeolite has been observed for the first time,which is a new phenomenon and differs from the abnormal infrared effe cts discovered by our group and the surface enhanced infrared absorption phenome non reported in the literature.

关 键 词：电化学原位FTIRS CO 吸附 载钯分子筛电极 

分 类 号：O647.32[理学—物理化学] O646.54[理学—化学]