期刊
ACS CATALYSIS
卷 3, 期 11, 页码 2497-2500出版社
AMER CHEMICAL SOC
DOI: 10.1021/cs400639b
关键词
water splitting catalysis; cobalt oxide; electrochemistry; nanoparticles; quantum confinement; oxygen evolution
资金
- NSF CCI Solar Fuels Program [CHE-1305124]
- Arnold and Mabel Beckman Foundation
Surfactant-free, size- and composition-controlled, unsupported, <5-nm, quantum-confined cobalt oxide nanoparticles with high electrocatalytic oxygen-evolution activity were synthesized by pulsed laser ablation in liquids. These crystalline Co3O4 nanoparticles have a turnover frequency per cobalt surface site among the highest ever reported for Co3O4 nanoparticle oxygen evolution catalysts in base and overpotentials competitive with the best electrodeposited cobalt oxides, with the advantage that they are suitable for mechanical deposition on photoanode materials and incorporation in integrated solar water-splitting devices.
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