Enhancement of Pt and Pt-alloy fuel cell catalyst activity and durability via nitrogen-modified carbon supports
Insufficient catalytic activity and durability are key barriers to the commercial deployment of low temperature polymer electrolyte membrane (PEM) and direct-methanol fuel cells (DMFCs). Recent observations suggest that carbon-based catalyst support materials can be systematically doped with nitroge...
| Main Authors: | , , , , , , , , |
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| Format: | Journal Article |
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Royal Society of Chemistry
2010
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| Online Access: | http://hdl.handle.net/20.500.11937/31660 |
| _version_ | 1848753443494166528 |
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| author | Zhou, Y. Neyerlin, K. Olson, T. Pylypenko, S. Bult, J. Dinh, H. Gennett, T. Shao, Zongping O'Hayre, R. |
| author_facet | Zhou, Y. Neyerlin, K. Olson, T. Pylypenko, S. Bult, J. Dinh, H. Gennett, T. Shao, Zongping O'Hayre, R. |
| author_sort | Zhou, Y. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Insufficient catalytic activity and durability are key barriers to the commercial deployment of low temperature polymer electrolyte membrane (PEM) and direct-methanol fuel cells (DMFCs). Recent observations suggest that carbon-based catalyst support materials can be systematically doped with nitrogen to create strong, beneficial catalyst-support interactions which substantially enhance catalyst activity and stability. Data suggest that nitrogen functional groups introduced into a carbon support appear to influence at least three aspects of the catalyst/support system: 1) modified nucleation and growth kinetics during catalyst nanoparticle deposition, which results in smaller catalyst particle size and increased catalyst particle dispersion, 2) increased support/catalyst chemical binding (or "tethering"), which results in enhanced durability, and 3) catalyst nanoparticle electronic structure modification, which enhances intrinsic catalytic activity. This review highlights recent studies that provide broad-based evidence for these nitrogen-modification effects as well as insights into the underlying fundamental mechanisms. © 2010 The Royal Society of Chemistry. |
| first_indexed | 2025-11-14T08:24:36Z |
| format | Journal Article |
| id | curtin-20.500.11937-31660 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T08:24:36Z |
| publishDate | 2010 |
| publisher | Royal Society of Chemistry |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-316602017-09-13T15:20:31Z Enhancement of Pt and Pt-alloy fuel cell catalyst activity and durability via nitrogen-modified carbon supports Zhou, Y. Neyerlin, K. Olson, T. Pylypenko, S. Bult, J. Dinh, H. Gennett, T. Shao, Zongping O'Hayre, R. Insufficient catalytic activity and durability are key barriers to the commercial deployment of low temperature polymer electrolyte membrane (PEM) and direct-methanol fuel cells (DMFCs). Recent observations suggest that carbon-based catalyst support materials can be systematically doped with nitrogen to create strong, beneficial catalyst-support interactions which substantially enhance catalyst activity and stability. Data suggest that nitrogen functional groups introduced into a carbon support appear to influence at least three aspects of the catalyst/support system: 1) modified nucleation and growth kinetics during catalyst nanoparticle deposition, which results in smaller catalyst particle size and increased catalyst particle dispersion, 2) increased support/catalyst chemical binding (or "tethering"), which results in enhanced durability, and 3) catalyst nanoparticle electronic structure modification, which enhances intrinsic catalytic activity. This review highlights recent studies that provide broad-based evidence for these nitrogen-modification effects as well as insights into the underlying fundamental mechanisms. © 2010 The Royal Society of Chemistry. 2010 Journal Article http://hdl.handle.net/20.500.11937/31660 10.1039/c003710a Royal Society of Chemistry restricted |
| spellingShingle | Zhou, Y. Neyerlin, K. Olson, T. Pylypenko, S. Bult, J. Dinh, H. Gennett, T. Shao, Zongping O'Hayre, R. Enhancement of Pt and Pt-alloy fuel cell catalyst activity and durability via nitrogen-modified carbon supports |
| title | Enhancement of Pt and Pt-alloy fuel cell catalyst activity and durability via nitrogen-modified carbon supports |
| title_full | Enhancement of Pt and Pt-alloy fuel cell catalyst activity and durability via nitrogen-modified carbon supports |
| title_fullStr | Enhancement of Pt and Pt-alloy fuel cell catalyst activity and durability via nitrogen-modified carbon supports |
| title_full_unstemmed | Enhancement of Pt and Pt-alloy fuel cell catalyst activity and durability via nitrogen-modified carbon supports |
| title_short | Enhancement of Pt and Pt-alloy fuel cell catalyst activity and durability via nitrogen-modified carbon supports |
| title_sort | enhancement of pt and pt-alloy fuel cell catalyst activity and durability via nitrogen-modified carbon supports |
| url | http://hdl.handle.net/20.500.11937/31660 |