Performance of DMFC anodes with ultra-low Pt loading

The electrochemical behaviour of Pt-decorated unsupported Ru catalysts-based anodes has been investigated in direct methanol fuel cells (DMFCs). A preparation procedure allowing the surface decoration of unsupported Ru catalysts by Pt nanoparticles has been developed. DMFC power densities of 150 mW...

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Bibliographic Details
Published in:Electrochemistry communications 2004-02, Vol.6 (2), p.164-169
Main Authors: Aricò, A.S, Baglio, V, Modica, E, Di Blasi, A, Antonucci, V
Format: Article
Language:English
Subjects:
Applied sciences
Decorated catalysts
Direct methanol fuel cells
Energy
Energy. Thermal use of fuels
Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc
Exact sciences and technology
Fuel cells
Pt–Ru catalysts
Ultra-low Pt loading
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Summary:The electrochemical behaviour of Pt-decorated unsupported Ru catalysts-based anodes has been investigated in direct methanol fuel cells (DMFCs). A preparation procedure allowing the surface decoration of unsupported Ru catalysts by Pt nanoparticles has been developed. DMFC power densities of 150 mW cm −2 at 130 °C have been achieved with ultra-low Pt loading anodes (0.1 mg cm −2) under air feed operation. Adsorbed methanolic residues stripping voltammetry analysis has been carried out to get information on the electrocatalytic activity of the Pt-decorated anodes in relation to the state-of-art carbon supported Pt–Ru (1:1) alloy and bare unsupported Ru catalysts.
ISSN:1388-2481
1873-1902
DOI:10.1016/j.elecom.2003.11.007