%0 Journal Article
%T Research of the behaviour of O chemisorption on the (110) surface of Rhx--Pt1－x alloy
%A 张　辉
%A 张国英
%A 王瑞丹
%A 钟　博
%J 中国物理 B
%D 2006
%I 
%X An atomic group model of the disordered binary alloy Rhx-Pt1-x has been constructed to investigate surface segregation. According to the model, we have calculated the electronic structure of the Rhx-Pt1-x alloy surface by using the recursion method when O atoms are adsorbed on the Rhx-Pt1-x （110） surface under the condition of coverage 0.5. The calculation results indicate that the chemical adsorption of O changes greatly the density of states near the Fermi level, and the surface segregation exhibits a reversal behaviour. In addition, when x 〈 0.3, the surface on which O is adsorbed displays the property of Pt; whereas when x 〉 0.3 it displays the property of Rh.
%K 化学吸附
%K 态密度
%K 表面分离
%K 物理化学
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=CD8D6A6897B9334F09D8D1648C376FB4&aid=B162D2F8A945E38DD4336988AD2CC52F&yid=37904DC365DD7266&vid=23CCDDCD68FFCC2F&iid=38B194292C032A66&sid=9A596D09E9486F3E&eid=0636354D8CF77519&journal_id=1009-1963&journal_name=中国物理&referenced_num=0&reference_num=11