Journal
ACS CATALYSIS
Volume 6, Issue 10, Pages 6699-6703Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acscatal.6b02416
Keywords
cobalt oxide; oxygen evolution reaction; top-down strategy
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Funding
- National Key Basic Research Program of China [2014CB931703]
- National Natural Science Foundation of China [51471115, 51171127]
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Cobalt oxide is a cheap catalyst for the oxygen evolution reaction; however, the low activity limits its practical application. Herein we report the preparation of a highly active Co3O4 catalyst via a top-down process, namely, laser fragmentation. The fierce laser irradiation generates fine and clean nanoparticles with abundant oxygen vacancies which simultaneously improve the adsorption energy and electrical conduction. As a result, the catalytic performance of the product reaches the top level of cobalt oxide, even outperforming the noble-metal catalyst, RuO2.
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