Effects of adsorbed polyaniline on redox process on MoO3 surface

被引：13

作者：

de Farias, RF

de Souza, JM

de Melo, JV

Airoldi, C

机构：

[1] Univ Estadual Campinas, Inst Quim, BR-13083970 Campinas, SP, Brazil

[2] Univ Fed Roraima, Dept Quim, BR-69310270 Boa Vista, Roraima, Brazil

[3] Univ Fed Pernambuco, Dept Quim Fundamental, BR-50670901 Recife, PE, Brazil

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 1999年 / 212卷 / 01期

基金：

巴西圣保罗研究基金会;

关键词：

molybdenum oxide; polyaniline; cyclic voltammetry; interface;

D O I：

10.1006/jcis.1998.6002

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The effects exhibited by adsorbed conducting polyaniline on the redox process on a molybdenum oxide surface were studied. Thermogravimetric results indicate a 4% polyaniline deposition. Cyclic voltammograms of the adsorbed polymer on MoO3 show that polyaniline exerts remarkable effects on the molybdenum blue oxidation-reduction process, with oxidation and reduction potentials of 0.33 and 0.18 V, respectively, This effect strongly enhances the electrode response, and can be used as an important tool in qualitative and/or quantitative determinations of molybdenum in solution as Well as in any substrate. (C) 1999 Academic Press.

引用

页码：123 / 129

页数：7

共 45 条

[1]

[Anonymous], OILFIELD REV

[2]

BISSESSUR R, 1993, J CHEM SOC CHEM COMM, P688

[3] THERMAL-ANALYSIS OF CONDUCTING POLYMERS .1. THERMOGRAVIMETRY OF ACID-DOPED POLYANILINES [J].