The effect of catalyst support on the performance of PtRu in direct borohydride fuel cell anodes

Vincent W.S. Lam; Akram Alfantazi; Elod L. Gyenge

doi:10.1007/s10800-009-9875-5

The effect of catalyst support on the performance of PtRu in direct borohydride fuel cell anodes

Vincent W.S. Lam, Akram Alfantazi, Elod L. Gyenge

Chemical and Petroleum Engineering

The University of British Columbia

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

21 Scopus citations

Abstract

A comparative investigation of direct borohydride fuel cell polarization behavior (DBFC) was carried out with respect to the effect of unsupported and supported PtRu anode catalysts using as supports both Vulcan XC-72R and graphite felt (GF). The Vulcan XC-72R-supported catalyst alleviated mass-transfer- related problems associated with hydrogen generation from borohydride hydrolysis taking place mainly on the Ru sites. However, the most significant improvement was obtained by using the three-dimensional GF support. Typically 1.0 mg cm ^-2 PtRu was galvanostatically electrodeposited by a surfactant templated method on compressed graphite felt of 350 μm thickness. The PtRu/GF anode (Pt:Ru atomic ratio of 1.4:1) generated a DBFC peak power density of 130 mW cm^-2 at 333 K. The separator in the DBFC was a Nafion ^® 117 membrane. The peak power density of the PtRu/GF was 270% and 60% higher compared with the catalyst-coated membrane configuration with unsupported PtRu and PtRu/Vulcan XC-72R, respectively.

Original language	British English
Pages (from-to)	1763-1770
Number of pages	8
Journal	Journal of Applied Electrochemistry
Volume	39
Issue number	10
DOIs	https://doi.org/10.1007/s10800-009-9875-5
State	Published - Oct 2009

Keywords

Anode
Borohydride
Direct borohydride fuel cell
Graphite felt
PtRu
Three-dimensional electrode

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title = "The effect of catalyst support on the performance of PtRu in direct borohydride fuel cell anodes",

abstract = "A comparative investigation of direct borohydride fuel cell polarization behavior (DBFC) was carried out with respect to the effect of unsupported and supported PtRu anode catalysts using as supports both Vulcan XC-72R and graphite felt (GF). The Vulcan XC-72R-supported catalyst alleviated mass-transfer- related problems associated with hydrogen generation from borohydride hydrolysis taking place mainly on the Ru sites. However, the most significant improvement was obtained by using the three-dimensional GF support. Typically 1.0 mg cm -2 PtRu was galvanostatically electrodeposited by a surfactant templated method on compressed graphite felt of 350 μm thickness. The PtRu/GF anode (Pt:Ru atomic ratio of 1.4:1) generated a DBFC peak power density of 130 mW cm-2 at 333 K. The separator in the DBFC was a Nafion {\textregistered} 117 membrane. The peak power density of the PtRu/GF was 270% and 60% higher compared with the catalyst-coated membrane configuration with unsupported PtRu and PtRu/Vulcan XC-72R, respectively.",

keywords = "Anode, Borohydride, Direct borohydride fuel cell, Graphite felt, PtRu, Three-dimensional electrode",

author = "Lam, {Vincent W.S.} and Akram Alfantazi and Gyenge, {Elod L.}",

note = "Funding Information: Acknowledgements The authors would like to acknowledge the financial support of this work by the Natural Science and Engineering Research Council of Canada and the Auto 21 NCE Program. The authors would also like to acknowledge Alex Bauer for his aid in the surfactant templated electrodeposition of PtRu on graphite felt.",

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AU - Gyenge, Elod L.

N1 - Funding Information: Acknowledgements The authors would like to acknowledge the financial support of this work by the Natural Science and Engineering Research Council of Canada and the Auto 21 NCE Program. The authors would also like to acknowledge Alex Bauer for his aid in the surfactant templated electrodeposition of PtRu on graphite felt.

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N2 - A comparative investigation of direct borohydride fuel cell polarization behavior (DBFC) was carried out with respect to the effect of unsupported and supported PtRu anode catalysts using as supports both Vulcan XC-72R and graphite felt (GF). The Vulcan XC-72R-supported catalyst alleviated mass-transfer- related problems associated with hydrogen generation from borohydride hydrolysis taking place mainly on the Ru sites. However, the most significant improvement was obtained by using the three-dimensional GF support. Typically 1.0 mg cm -2 PtRu was galvanostatically electrodeposited by a surfactant templated method on compressed graphite felt of 350 μm thickness. The PtRu/GF anode (Pt:Ru atomic ratio of 1.4:1) generated a DBFC peak power density of 130 mW cm-2 at 333 K. The separator in the DBFC was a Nafion ® 117 membrane. The peak power density of the PtRu/GF was 270% and 60% higher compared with the catalyst-coated membrane configuration with unsupported PtRu and PtRu/Vulcan XC-72R, respectively.

AB - A comparative investigation of direct borohydride fuel cell polarization behavior (DBFC) was carried out with respect to the effect of unsupported and supported PtRu anode catalysts using as supports both Vulcan XC-72R and graphite felt (GF). The Vulcan XC-72R-supported catalyst alleviated mass-transfer- related problems associated with hydrogen generation from borohydride hydrolysis taking place mainly on the Ru sites. However, the most significant improvement was obtained by using the three-dimensional GF support. Typically 1.0 mg cm -2 PtRu was galvanostatically electrodeposited by a surfactant templated method on compressed graphite felt of 350 μm thickness. The PtRu/GF anode (Pt:Ru atomic ratio of 1.4:1) generated a DBFC peak power density of 130 mW cm-2 at 333 K. The separator in the DBFC was a Nafion ® 117 membrane. The peak power density of the PtRu/GF was 270% and 60% higher compared with the catalyst-coated membrane configuration with unsupported PtRu and PtRu/Vulcan XC-72R, respectively.

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KW - Three-dimensional electrode

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The effect of catalyst support on the performance of PtRu in direct borohydride fuel cell anodes

Abstract

Keywords

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