3D nanowire Pt catalysts with enhanced stability for the oxygen reduction reaction
3D nanowire Pt catalysts with enhanced stability for the oxygen reduction reaction
We report that self-supporting mesoporous platinum 3D nanowires with a single diamond (SD) morphology and a high specific surface area of 40.4 m2 g-1 demonstrated enhanced stability toward the oxygen reduction reaction (ORR). These were found to be superior to commercially available carbon-supported Pt nanoparticles (Pt/C). After 1000 potential cycles, there was a 21% loss in surface area for SD-Pt, as compared with a 40.3% loss for Pt/C with no reduction in their half-wave potential (measured at J = 3.0 mA cm-2), whereas the Pt/C catalyst showed a 11.9 mV decrease. Our findings revealed that our SD-Pt thin films also exhibited excellent ORR activity, which offers significant potential for their application as high-performance cathode materials in alkaline fuel cells.
8082-8088
White, Joshua S.
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Liu, Wanli
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Perry, Samuel C.
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Akbar, Samina
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Alba-Venero, Diego
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Terrill, Nicholas J.
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Squires, Adam
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Nandhakumar, Iris
e9850fe5-1152-4df8-8a26-ed44b5564b04
4 March 2025
White, Joshua S.
3025791c-ba86-4207-8059-19ff2617122c
Liu, Wanli
ab42521f-970b-47f9-9dd4-7adb405331e4
Perry, Samuel C.
8e204d86-4a9c-4a5d-9932-cf470174648e
Akbar, Samina
161851df-f691-49ef-960c-c2f325c98357
Alba-Venero, Diego
5e2f071d-e58e-4d83-bf35-15fcb634788b
Terrill, Nicholas J.
e8e88533-2dd5-42f6-bb32-c25034e08a83
Squires, Adam
dcf51695-9a96-48aa-acf9-b76d0ab27e9b
Nandhakumar, Iris
e9850fe5-1152-4df8-8a26-ed44b5564b04
White, Joshua S., Liu, Wanli, Perry, Samuel C., Akbar, Samina, Alba-Venero, Diego, Terrill, Nicholas J., Squires, Adam and Nandhakumar, Iris
(2025)
3D nanowire Pt catalysts with enhanced stability for the oxygen reduction reaction.
ACS Omega, 10 (8), .
(doi:10.1021/acsomega.4c06385).
Abstract
We report that self-supporting mesoporous platinum 3D nanowires with a single diamond (SD) morphology and a high specific surface area of 40.4 m2 g-1 demonstrated enhanced stability toward the oxygen reduction reaction (ORR). These were found to be superior to commercially available carbon-supported Pt nanoparticles (Pt/C). After 1000 potential cycles, there was a 21% loss in surface area for SD-Pt, as compared with a 40.3% loss for Pt/C with no reduction in their half-wave potential (measured at J = 3.0 mA cm-2), whereas the Pt/C catalyst showed a 11.9 mV decrease. Our findings revealed that our SD-Pt thin films also exhibited excellent ORR activity, which offers significant potential for their application as high-performance cathode materials in alkaline fuel cells.
Text
white-et-al-2025-3d-nanowire-pt-catalysts-with-enhanced-stability-for-the-oxygen-reduction-reaction
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Accepted/In Press date: 10 February 2025
e-pub ahead of print date: 21 February 2025
Published date: 4 March 2025
Identifiers
Local EPrints ID: 499491
URI: http://eprints.soton.ac.uk/id/eprint/499491
ISSN: 2470-1343
PURE UUID: 1bad8a98-c5d2-46e7-a8ea-6067636a4bc6
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Date deposited: 21 Mar 2025 17:47
Last modified: 22 Aug 2025 02:39
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Contributors
Author:
Joshua S. White
Author:
Wanli Liu
Author:
Samuel C. Perry
Author:
Samina Akbar
Author:
Diego Alba-Venero
Author:
Nicholas J. Terrill
Author:
Adam Squires
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