Vibrational Analysis of Oxygen Adsorption on Cs and CO Coadsorbate Precovered Ru(0001)Surface

作     者：HE Pei-mo Karl Jacobi 何丕模;Karl Jacobi

作者机构：Department of PhysicsZhejiang UniversityHangzhou 310027 Fritz-Haber-Institut der Max-Planck-GesellschaftFaradayweg 4-6D-14195 BerlinGermany 

出 版 物：《Chinese Physics Letters》 (中国物理快报（英文版）)

年 卷 期：1999年第16卷第6期

页      面：428-430页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学] 

基　　金：Supported in part by the National Natural Science Foundation of China under Grand No.19774047 

主　　题：spectroscopy. adsorption Adsorption 

摘      要：Vibrational analysis of oxygen adsorption on the Cs and CO coadsorbate precovered Ru(0001)surface was carried out by means of high-resolution electron energy loss *** submonolayer Cs coverages on Ru(0001)j an appropriate amount of CO adsorption leads to formation of(2x2)-Cs+2CO *** oxygen adsorption on this Cs and CO coadsorbate precovered surface results in a remarkable change of high-resolution electron energy loss *** loss peak of C-O stretch mode for 2x2 island species decreases in intensity,which is accompanied by appearance of new bands at about 87 and 240 *** results show that Cs adatoms and CO molecules are rearranged upon oxygen adsorption,and are correlated with coexistence of bare surface CO and a mixed phase of Cs,CO,and O.