Novel Pd–Pb/C bimetallic catalysts for direct formic acid fuel cells

Novel carbon supported bimetallic palladium–lead (Pd–Pb/C) anode catalysts have been prepared for use in direct formic acid fuel cells (DFAFC). Comparative studies, with a Pd/C catalyst, of performances, deactivation, and reactivation were performed in a multi-anode DFAFC. These Pd–Pb/C catalysts we...

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Bibliographic Details
Published in:Journal of power sources 2009-07, Vol.192 (2), p.279-284
Main Authors: Yu, Xingwen, Pickup, Peter G.
Format: Article
Language:English
Subjects:
Applied sciences
Characterization
Direct formic acid fuel cell (DFAFC)
Energy
Energy. Thermal use of fuels
Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc
Exact sciences and technology
Fuel cells
Pd–Pb/C bimetallic catalyst
Stable catalytic activity
Synthesis
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Summary:Novel carbon supported bimetallic palladium–lead (Pd–Pb/C) anode catalysts have been prepared for use in direct formic acid fuel cells (DFAFC). Comparative studies, with a Pd/C catalyst, of performances, deactivation, and reactivation were performed in a multi-anode DFAFC. These Pd–Pb/C catalysts were found to be more resistant to deactivation in the DFAFC than Pd/C and to consistently show better long-term performances. With high purity formic acid, a Pd–Pb(4:1)/C catalyst also provided superior initial performance. Initial performances are more sensitive to acetic acid in the formic acid than for Pd/C. Both the Pd–Pb/C and Pd/C catalysts can be repeatedly reactivated by applying a −0.3 V cell potential for 5 s.
ISSN:0378-7753
1873-2755
DOI:10.1016/j.jpowsour.2009.03.036