%0 Journal Article
%T Density functional study of CO adsorption on Pu (100) surface<br>CO在Pu(100)表面吸附的研究
%A Luo Wen-Hu
%A Meng Da-Qiao
%A Li Gan
%A Chen Hu-Chi
%A <br>罗文华
%A 蒙大桥
%A 李 赣
%A 陈虎翅
%J 中国物理 B
%D 2008
%I 
%X The adsorption of CO on Pu (100) surface were studied by the density functional theory (DFT). The calculation results show that the O-down adsorption is less stable than the C-down adsorption which is found to be a strong chemisorption. The stability of adsorption configuration of CO is hollow tilted > hollow vertical > bridge > on-top. The interaction between Pu atom and CO molecule results mainly from the contribution of hybridized molecular orbital of CO molecule and hybridized orbital of surface Pu atom. A small activation barrier of 0.280eV is found for the dissociation of CO molecule in hollow tilted configuration, which indicates the dissociative adsorption of CO on Pu (100) surface at the lower temperature with dissociated C and O atoms favoring the hollow site of lowest energy.
%K density functional theory
%K Pu (100) surface
%K carbon monoxide
%K molecular and dissociative adsorption<br>密度泛函理论，
%K Pu
%K (100)，
%K CO，
%K 分子和离解吸附
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=CD8D6A6897B9334F09D8D1648C376FB4&aid=ABBA57159C6B9E67F3011F1EDCB29B84&yid=67289AFF6305E306&vid=BCA2697F357F2001&iid=CA4FD0336C81A37A&sid=1B97AE5098AEB49C&eid=F260CE035846B3B8&journal_id=1009-1963&journal_name=中国物理&referenced_num=0&reference_num=0