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Lookup NU author(s): Dr Gimi Rimbu, Christopher Jackson, Emeritus Professor Keith Scott
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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 metallic catalyst, in the presence of a reductant media as formaldehyde solution, or thermal reduction in H2 / N2 atmosphere at over 600 °C. 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.
Author(s): Rimbu GA, Jackson CL, Scott K
Publication type: Article
Publication status: Published
Journal: Journal of Optoelectronics and Advanced Materials
Year: 2006
Volume: 8
Issue: 2
Pages: 611-616
ISSN (print): 1454-4164
ISSN (electronic):
Publisher: Institutul National de Cercetare-Dezvoltare pentru Optoelectronica
