期刊
JOURNAL OF APPLIED ELECTROCHEMISTRY
卷 51, 期 7, 页码 1101-1108出版社
SPRINGER
DOI: 10.1007/s10800-021-01555-z
关键词
Oxygen evolution reaction; Dealloying; Nanoporous metals; PEM electrolysis
资金
- National Science Foundation, Division of Materials Research [1904571]
- Direct For Mathematical & Physical Scien
- Division Of Materials Research [1904571] Funding Source: National Science Foundation
The development of a nanostructured oxygen evolution reaction (OER) electrocatalyst for low-pH water splitting is demonstrated in this study, utilizing dealloying of mixed RuIr borides to form a high aspect ratio electrocatalytic material with low OER overpotentials and electrolytic stability.
Efficient water splitting for commercial electrolysis devices is predicated on the development of materials, specifically for the catalytic electrodes, that exhibit an optimal balance between activity and stability. Complicating the development of electrocatalytic materials, particularly for oxygen-evolving anodes in acidic polymer electrolyte membrane electrolyzers, is an inverse relationship between activity and stability. Here the development of a nanostructured oxygen evolution reaction (OER) electrocatalyst for low-pH water splitting is demonstrated. Dealloying of mixed RuIr borides is used to form a high aspect ratio electrocatalytic material that exhibits low OER overpotentials matching that of RuOx and electrolytic stability matching that of IrOx.
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