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Effects of Adsorbed Polyaniline on Redox Process on MoO3Surface

✍ Scribed by Robson F. de Farias; Jucimar M. de Souza; Jailson V. de Melo; Claudio Airoldi

Publisher
Elsevier Science
Year
1999
Tongue
English
Weight
235 KB
Volume
212
Category
Article
ISSN
0021-9797

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✦ Synopsis

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 MoO 3 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.

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