Study of Alternative Oxygen Reduction Electrocatalyst for Pt Based on Transition Metal Chalcogenides
Date Published: 2008-04-14
Paper Number:2008-01-1265
DOI: 10.4271/2008-01-1265
Citation:
Ueno, Y., Iisaka, H., and Dohmae, K., "Study of Alternative Oxygen Reduction Electrocatalyst for Pt Based on Transition Metal Chalcogenides," SAE Int. J. Mater. Manuf. 1(1):648-652, 2009, doi:10.4271/2008-01-1265.
The development of an alternative oxygen reduction electrocatalyst to platinum based electrocatalysts is critical for practical use of the polymer electrolyte membrane fuel cell (PEMFC). Transition metal sulfide chalcogenides have recently been reported as a possible candidate for Pt replacement. Our work focused on chalcogenides composed of ruthenium, molybdenum, and sulfur (RuMoS). We elucidate the factors affecting electrocatalytic activity of carbon supported Ru
X
Mo
Y
S
Z
catalyst. This was demonstrated through a correlation of oxygen reduction reaction (ORR) activity of the catalysts with structural changes resulting from designed changes in sulfur composition in the catalysts.
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See papers presented at SAE World Congress & Exhibition, April 2008, Detroit, MI, USA, Session: Nanotechnology for Automotive Applications (Part 3 of 3) - Nanostructured Materials and their Characterization
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