ELECTROCHEMICAL STUDY OF ISOPOLYOXOMETALLATES AND HETEROPOLYOXOMETALLATES FILM MODIFIED MICROELECTRODES .1. PRETREATMENT AND MODIFICATION OF THE MO80-26(4-) MODIFIED CARBON-FIBER MICROELECTRODE

被引:67
作者
DONG, SJ
WANG, BX
机构
[1] Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Academia Sinica, Changchun
关键词
ISOPOLYOXOMETALLATE; HETEROPOLYOXOMETALLATE; CARBON FIBER; MICROELECTRODE; CHEMICALLY MODIFIED ELECTRODE;
D O I
10.1016/0013-4686(92)80004-6
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
In this paper the preparation of isopoly- and heteropolyoxometallates (IPA and HPA) thin film modified carbon fiber (CF) microelectrodes and the factor that influences the modification of IPA and HPA films are described. IPA and HPA film modified CF microelectrodes can all be prepared by cyclic potential scan and simple dip coating. The modified electrodes prepared are very stable and reversible in acidic solution with monolayer characteristics. The electrochemical pretreatment of CF microelectrodes plays an important role in the modification of IPA and HPA film. The absorption of IPA and HPA film on electrode surfaces has been discussed on the basis of surface conditions of the CF microelectrode and the structure of IPA and HPA.
引用
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页码:11 / 16
页数:6
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