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Citation: Diao Zhao-Yu, Dong Chen-Chu, Wang Ze-Xin, Han Ling-Li, Hao Ce. Adsorption and Vibration of O on Pt(s)-[n(111)×(100)] Surfaces[J]. Acta Physico-Chimica Sinica, ;2004, 20(12): 1445-1450. doi: 10.3866/PKU.WHXB20041209 shu

Adsorption and Vibration of O on Pt(s)-[n(111)×(100)] Surfaces

1.
Department of Chemistry, Shandong Normal University, Jinan　250014; 1School of Chemical Engineering, Dalian University of Technology, Dalian 116028

Received Date: 19 May 2004
Available Online: 15 December 2004

Oxygen adsorbed on Pt stepped surfaces has been studied by means of the 5-parameter morse potential(5-MP) of interaction between an adatom and metal surface cluster .The theoretical calculated results about O/Pt(s)-[n(111)×(100)] systems draw some conclusions. The four-fold site behind a step that an oxygen atom binds in corresponds to the most stable state named β2-state. And the three-fold site near the four-fold site at a (111) terrace is annihilated, then the other three-fold sites correspond to adsorption states named β1-state. In addition the length of the (111) terrace has effect on the four-fold state.
- O-Pt system;　5-MP;　Adsorption and vibration;　Stepped surfaces
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