TY - JOUR
T1 - Cycle durability of metal oxide supports for PEFC electrocatalysts
AU - Takabatake, Y.
AU - Noda, Z.
AU - Lyth, S. M.
AU - Hayashi, A.
AU - Sasaki, K.
N1 - Funding Information:
This work was supported by Scientific Research S (No. 23226015), JSPS, Japan. The International Institute for Carbon-Neutral Energy Research is supported by World Premier International Research Center Initiative (WPI), MEXT, Japan. We sincerely dedicate this paper to our graduate student, Mr. Wentian Hong, who tragically passed away during the early stages of this study.
Copyright:
Copyright 2014 Elsevier B.V., All rights reserved.
PY - 2014/3/26
Y1 - 2014/3/26
N2 - In order to develop durable electrocatalysts for polymer electrolyte fuel cells, six different metal oxides, namely MoO3, SnO2, Nb2O5, Ta2O5, TiO2, and WO3, are selected as thermochemically stable, carbon-free platinum electrocatalyst support materials. The stability of Pt on these alternative oxide support materials is systematically analyzed, for the first time, using common experimental protocols simulating realistic fuel cell vehicle operation. Pt/SnO2 shows the best performance in terms of both electrochemical activity, and stability against dissolution. Pt dissolution rates in Pt/SnO 2 are comparable to those of conventional Pt/C electrocatalysts. These results suggest that SnO2 is a promising candidate as an alternative electrocatalyst support.
AB - In order to develop durable electrocatalysts for polymer electrolyte fuel cells, six different metal oxides, namely MoO3, SnO2, Nb2O5, Ta2O5, TiO2, and WO3, are selected as thermochemically stable, carbon-free platinum electrocatalyst support materials. The stability of Pt on these alternative oxide support materials is systematically analyzed, for the first time, using common experimental protocols simulating realistic fuel cell vehicle operation. Pt/SnO2 shows the best performance in terms of both electrochemical activity, and stability against dissolution. Pt dissolution rates in Pt/SnO 2 are comparable to those of conventional Pt/C electrocatalysts. These results suggest that SnO2 is a promising candidate as an alternative electrocatalyst support.
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U2 - 10.1016/j.ijhydene.2014.01.094
DO - 10.1016/j.ijhydene.2014.01.094
M3 - Article
AN - SCOPUS:84897925922
SN - 0360-3199
VL - 39
SP - 5074
EP - 5082
JO - International Journal of Hydrogen Energy
JF - International Journal of Hydrogen Energy
IS - 10
ER -
