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Platinum / carbon / polyaniline based nanocomposites as catalysts for fuel cell technology

G. A. RIMBU1,* , C. L. JACKSON2, K. SCOTT2

Affiliation

  1. National Research Institute for Electrical Engineering INCDIE ICPE-CA, 313 Splaiul Unirii, 030138, Bucharest-3, Romania
  2. University of Newcastle upon Tyne, Newcastle upon Tyne, U.K.

Abstract

One of desirable factors in fuel cell systems is to assure a high catalytic activity at the electrode level. This aspect is achieved by depositing the catalyst on high surface area substrate, having the property to be a good electronic conductor and developing in the same time a high ionic conduction. The literature shows different methods of catalyst deposition on carbon substrates, such as Vulcan XC 72R, by a direct chemical reduction of the metalic catalyst, in the presence of a reductant media as formaldehyde solution, or thermal reduction in H2 / N2 atmosphere at over 600 oC. In order to evaluate the catalytic performance of supported Pt, we have investigated a proper method for the noble metal deposition on different substrates such as: Vulcan XC 72R, Ketjen Black EC 300J and PANI, which is suitable to give a close performance compared with commercial one. The catalyst performances were investigated by FTIR, XRD, TEM and Cyclic Voltammetry..

Keywords

Fuel cells, Catalyst, Ionic conduction, Platinum, Polyaniline.

Submitted at: Jan. 18, 2006
Accepted at: March 23, 2006

Citation

G. A. RIMBU, C. L. JACKSON, K. SCOTT, Platinum / carbon / polyaniline based nanocomposites as catalysts for fuel cell technology, Journal of Optoelectronics and Advanced Materials Vol. 8, Iss. 2, pp. 611-616 (2006)