The Effect of the Oxygen Preadsorption on the Adsorption of Nitric Oxide on Mo (111)

作     者：WANG Guo-Jia (Department of Chemistry, Jilin University, Changchun, 130023)K. B. Lewis and G. A. Somorjai(Materials and Molecular Research Division Lawrence Berkeley Laboratory and Department of Chemistry, University of California Berkeley, California, 94720, U. S. A. ) 

出 版 物：《Chemical Research in Chinese Universities》 (高等学校化学研究（英文版）)

年 卷 期：1993年第9卷第3期

页      面：214-219页

核心收录：

学科分类：07[理学] 0703[理学-化学] 

主　　题：Adsorption Nitric、oxide Oxygen preadsorption 

摘      要：The adsorption of nitric oxide adsorption on clean Mod(111), Mo(111)/O2-(4×4), Mo(111)/O2-(1×3), Mo(111)/O2-(112) facets and Mo(111) oxide surfaces was studied. Mass 28 (N2) desorption spectra show two high temperature peaks at approximate 1030 (β1) and 1200K (β2). For NO exposures less than 0. 1 L only the ft peak was observed. At higher exposures, the ft peak appeared and small amounts of N2O as well as NO desorbed. The preadsorption of oxygen blocked the β2 desorption partially on the (4×4) and (1×3) surfaces and fully on the (112) facet and oxide surfaces. In addition, the β1 desorption peak shifted to higher temperatures with increasing oxygen preexposure.