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Studies on the abnormal IR effects for CO adsorption on nanostructured Pt thin films

## Studies on the abnormal IR effects for CO adsorption on nanostructured Pt thin films

Chen You-Jiang, Sun Shi-Gang, Wu Chen-Xu, Lin Hai, Jiang Dong-Hua, Huang Xiao-Jing
• #### Abstract

The abnormal IR effects(AIREs) of the adsorption of CO on electrodes made of Pt nanostructured thin films generated in square wave potential treatment were obs erved. Based on the experimental results, the AIREs were analysed and simulated by taking into consideration of the interparticle interaction and the electron- hole damping. The results illustrate that the islanded nanostructured Pt surface s give rise to the interactions between CO molecules as well as between CO molec ules and nanostructured Pt surface. The energy transfer due to electron_hole dam ping and the enhancement of interparticle interaction are the important cause of the changes of IR absorption spectra.

• Funds:

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•  Citation:
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• Abstract views:  2590
• Cited By: 0
##### Publishing process
• Received Date:  03 November 2003
• Accepted Date:  01 April 2004
• Published Online:  19 January 2005

## Studies on the abnormal IR effects for CO adsorption on nanostructured Pt thin films

• 1. (1)厦门大学固体表面物理化学国家重点实验室,厦门 361005; (2)厦门大学物理系软凝聚态研究室,厦门 361005; (3)厦门大学物理系软凝聚态研究室,厦门 361005;集美大学理学院物理系,厦门 361021

Abstract: The abnormal IR effects(AIREs) of the adsorption of CO on electrodes made of Pt nanostructured thin films generated in square wave potential treatment were obs erved. Based on the experimental results, the AIREs were analysed and simulated by taking into consideration of the interparticle interaction and the electron- hole damping. The results illustrate that the islanded nanostructured Pt surface s give rise to the interactions between CO molecules as well as between CO molec ules and nanostructured Pt surface. The energy transfer due to electron_hole dam ping and the enhancement of interparticle interaction are the important cause of the changes of IR absorption spectra.

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