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Citation: Zhang Ying, Xu Hai-Bo. CO Chemisorption on Disordered Binary Alloy[J]. Acta Physico-Chimica Sinica, ;1998, 14(01): 68-72. doi: 10.3866/PKU.WHXB19980113 shu

CO Chemisorption on Disordered Binary Alloy

Zhang Ying ,
Xu Hai-Bo

1.
Department of Physics,Henan Normal University,Xinxiang 453002

Received Date: 31 March 1997
Available Online: 15 January 1998

The one-dimensional tight-binding model and the one-electron chemisorption energy are used to study the absorption of CO on PtxCu1-x, PtxNi1-x and NixCu1-x with the coherent potential approximation (CPA).The results are as follows;
(1)For the systems of CO/NixCu1-x and PtxCu1-x chemisorption energy(△E) increase with the increase of Ni's content and Pt's content, resulting in an unstable chemisorption;
(2)For the systems of CO/PtxNi1-x, the most stable chemisorption occurs at the mole ratio of Pt:Ni8:2 and the most unstable chemisorption occures at the mole ratio 7:3.
- Green function method,
- Coherent-potential approximation(CPA),
- Chemisorption energy
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