Catalysis Database

Pt supported on polyaniline-V2O5 nanocomposite as the electrode material for methanol oxidation

B, Rajesh and K, Ravindranathan Thampi and J.-M, Bonard and N, Xanthopoulos and H.J, Mathieu and B, Viswanathan (2002) Pt supported on polyaniline-V2O5 nanocomposite as the electrode material for methanol oxidation. Electrochemical and Solid-State Letters, 5 (12). E71-E74 .

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Abstract

The nanocomposite material prepared via the intercalation of polyaniline in V2O5 matrix has been used as the support for Pt in methanol oxidation reaction. The average particle size of the Pt as evaluated from the high-resolution transmission electron microscope was found to be 4 nm. The X-ray photoelectron spectroscopy analysis revealed that vanadium is present in the form of V2O5 and Pt in the metallic state. The activity of methanol oxidation of the Pt loaded nanocomposite electrode as evaluated from cyclic voltammetry was found to be 111 mAcm22 at 10.8 V vs. Ag/AgCl for a Pt loading of 50 mgcm22. The chronoamperometric response reveals the better activity and stability of the nanocomposite electrode compared to the bulk Pt electrode.

Item Type:Article
Subjects:Science > Chemistry
ID Code:85
Deposited By: Dr S Navaladian
Deposited On:28 Feb 2007 11:18
Last Modified:20 Mar 2007 21:49

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