Effects of Adsorbed Polyaniline on Redox Process on MoO3Surface

Abstract

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. Copyright 1999 Academic Press.

Molecular properties and intermolecular forces—factors balancing the effect of carbon surface chemistry in adsorption of organics from dilute aqueous solutions

“…(18) are possible. It is probable that the polymeric forms of aniline well known in the literature are created [59][60][61][62] or it undergoes oxidation and the products are strongly adsorbed by carbon. Sun and co-workers [63] showed that the aniline polymerization is possible at the room temperature and it is catalyzed by the presence of H 2 O 2 .…”

Effects of Adsorbed Polyaniline on Redox Processes on As2O3 Surfaces

“…Taking into account these features, polyaniline adsorbed on MoO 3 gave a final product, which was used to electrocatalyze the oxidation of the molybdate ion probe by enhancing the electrode response several times (28).…”