Journal
NATURE NANOTECHNOLOGY
Volume 14, Issue 11, Pages 1071-+Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/s41565-019-0550-7
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Funding
- Department of Defence Small Business Innovation Research Phase I [N00024-17-P-4507, N162-107]
- US Department of Energy, Office of Science, Office of Basic Energy Sciences, Chemical Sciences, Geosciences and Biosciences Division, Catalysis Science Programme through the SUNCAT Centre for Interface Science and Catalysis
- National Science Foundation [ECCS-1542152]
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We demonstrate the translation of a low-cost, non-precious metal cobalt phosphide (CoP) catalyst from 1 cm(2) lab-scale experiments to a commercial-scale 86 cm(2) polymer electrolyte membrane (PEM) electrolyser. A two-step bulk synthesis was adopted to produce CoP on a high-surface-area carbon support that was readily integrated into an industrial PEM electrolyser fabrication process. The performance of the CoP was compared head to head with a platinum-based PEM under the same operating conditions (400 psi, 50 degrees C). CoP was found to be active and stable, operating at 1.86 A cm(-2) for >1,700 h of continuous hydrogen production while providing substantial material cost savings relative to platinum. This work illustrates a potential pathway for non-precious hydrogen evolution catalysts developed in past decades to translate to commercial applications.
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