Cycle durability of metal oxide supports for PEFC electrocatalysts

Y. Takabatake; Z. Noda; S. M. Lyth; A. Hayashi; K. Sasaki

doi:10.1016/j.ijhydene.2014.01.094

Cycle durability of metal oxide supports for PEFC electrocatalysts

Y. Takabatake, Z. Noda, S. M. Lyth, A. Hayashi, K. Sasaki^*

^*Corresponding author for this work

Chemical And Process Engineering

Research output: Contribution to journal › Article › peer-review

78 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	5074-5082
Number of pages	9
Journal	International Journal of Hydrogen Energy
Volume	39
Issue number	10
Early online date	18 Feb 2014
DOIs	https://doi.org/10.1016/j.ijhydene.2014.01.094
Publication status	Published - 26 Mar 2014

Funding

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.

Keywords

degradation
electrocatalyst
metal oxide support
platinum dissolution
polymer electrolyte fuel cells

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.ijhydene.2014.01.094

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title = "Cycle durability of metal oxide supports for PEFC electrocatalysts",

abstract = "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.",

keywords = "degradation, electrocatalyst, metal oxide support, platinum dissolution, polymer electrolyte fuel cells",

author = "Y. Takabatake and Z. Noda and Lyth, {S. M.} and A. Hayashi and K. Sasaki",

year = "2014",

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doi = "10.1016/j.ijhydene.2014.01.094",

language = "English",

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journal = "International Journal of Hydrogen Energy",

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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.

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.

KW - degradation

KW - electrocatalyst

KW - metal oxide support

KW - platinum dissolution

KW - polymer electrolyte fuel cells

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 -

Cycle durability of metal oxide supports for PEFC electrocatalysts

Abstract

Funding

Keywords

UN SDGs

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