SURFACE SEGREGATION AND SODIUM-TRANSPORT IN NAXCOO2

被引：4
|
作者：
KEMP, JP
BEAL, DJ
COX, PA
FOORD, JS
机构：
[1] Inorganic Chemistry Laboratory, Oxford, OX1 3QR, South Parks Road
来源：
VACUUM | 1990年 / 41卷 / 7-9期
关键词：
D O I：
10.1016/0042-207X(90)94072-X
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The sodium cobalt bronzes, Na(x)CoO2, have been synthesised and studied by XPS, UPS, EELS and EDAX. It is found that heating in oxygen gives rise to a surface layer of Na2O, up to several hundred angstrom in thickness, and that this is normally present as a result of synthetic conditions. The formation of this layer is investigated as a function of temperature, oxygen pressure, and the value of x, and comparisons with lithium analogues made. We discuss reasons for this behaviour, and implications for sodium transport in this material, and thus its use as a battery cathode.
引用
收藏
页码：1739 / 1742
页数：4
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