Abnormal infrared effects of nanometer scale thin film material of PtPd alloy in CO adsorption
作者： Zhi Chen , Shigang Sun , Nan Ding , Zhiyou Zhou
DOI: 10.1007/BF03187026
关键词: Crystallite 、 Infrared 、 Nanometre 、 Glassy carbon 、 Alloy 、 Analytical chemistry 、 Full width at half maximum 、 Adsorption 、 Materials science 、 Thin film 、 Multidisciplinary
摘要: Nanometer scale thin film material of PtPd alloy supported on glassy carbon (nm-PtPd/GC) was prepared by the electrochemical codeposition method under cyclic voltammetric conditions. STM patterns demonstrated that films are composed layered crystallites in elliptic form. Electrochemicalin situ FTIRS studies explored abnormal infrared effects (AIREs) nm-PtPd/GC for CO adsorption, which (i) remarkable enhancement IR absorption, (ii) inversion COad band direction, and (iii) notable increase full width at half maximum (FWHM) bands. The results also factor absorption varies with thickness has reached a value 38.3 experimental
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