CHARACTERIZATION OF OXYGEN ADSORBED AT BA-MODIFIED ZN(0001) SURFACES - EVIDENCE FOR PEROXO SPECIES

被引：1
作者：
CARLEY, AF
RAJUMON, MK
ROBERTS, MW
WANG, FC
机构：
[1] Department of Chemistry, University of Wales, Cardiff, Cardiff, CF1 3TB
来源：
SOLID STATE COMMUNICATIONS | 1994年 / 91卷 / 10期
关键词：
D O I：
10.1016/0038-1098(94)90649-1
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Ba-modified Zn(0001) surfaces exhibit an increased reactivity towards oxygen compared to a clean Zn(0001) surface. When the Ba coverage is small (theta(Ba) approximately 0.1-0.5ML), the main surface species are ZnO and a peroxo species of the type (Ba,Zn)O2delta-. At higher coverages of Ba (theta(Ba) approximately 0.75 ML), the initial species observed is BaO followed by ZnO and (Ba,Zn)O2delta- peroxo species. At still higher coverages of Ba (theta(Ba) approximately 1.4 ML), BaO2 is formed, but Zn is left unperturbed.
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页码：791 / 794
页数：4
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