Surface properties of KOx and CsOx graphite intercalation compounds

被引:3
作者
Mordkovich, VZ
Yoshimura, S
机构
关键词
scanning tunneling microscopy; photoelectron spectroscopy; graphite; alkali metal; oxide; intercalation compounds;
D O I
10.1016/S0379-6779(97)80389-X
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Graphite intercalation compounds (GICs) with heavy alkali oxides were studied by X-ray photoelectron spectroscopy (XPS) and scanning tunneling microscopy (STM). It is shown that both Cls and Ols spectra a of CsOX GICs are essentially different fi om that of the oxidized surfaces of Ca GICs. It is found that the surface al-eas of CsOX GICs are enriched with oxygen due to migration of the oxygen fi om the bulk. A number of hexagonal and square super-lattices were observed in the STM images of CsOX GICs, Square 4x4 Angstrom(2) superlattice was observed at the surface of KOX GICs.
引用
收藏
页码:1667 / 1668
页数:2
相关论文
共 4 条
[1]   New graphite intercalation compounds with heavy alkali metal superoxides [J].
Mordkovich, VZ ;
Baxendale, M ;
Ohki, Y ;
Yoshimura, S ;
Yamashita, T ;
Enoki, T .
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1996, 57 (6-8) :821-825
[2]   POTASSIUM OXYGEN GRAPHITE-INTERCALATION COMPOUNDS [J].
MORDKOVICH, VZ ;
OHKI, Y ;
YOSHIMURA, S ;
HINO, S ;
YAMASHITA, T ;
ENOKI, T .
SYNTHETIC METALS, 1994, 68 (01) :79-83
[3]   OXYGEN-ADSORPTION ON CS-GRAPHITE INTERCALATION COMPOUNDS UV AND X-RAY PHOTOELECTRON STUDIES ON CSC8 AT 100-K - FORMATION OF OXIDE, PEROXIDE AND SUPEROXIDE ON THE SURFACE [J].
VAYERBESANCON, M ;
ROUSSEAU, B ;
ESTRADESZWARCKOPF, H .
SURFACE SCIENCE, 1994, 318 (1-2) :169-176
[4]   OXYGEN-ADSORPTION ON CESIUM-GRAPHITE INTERCALATION COMPOUNDS - PHOTOEMISSION-STUDIES OF THE DAMAGES CAUSED BY X-RAY-IRRADIATION AT 100 K [J].
VAYERBESANCON, M ;
ROUSSEAU, B ;
ESTRADESZWARCKOPF, H .
SURFACE SCIENCE, 1995, 336 (1-2) :L741-L745