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  • 2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference
  • OSA Technical Digest (Optica Publishing Group, 2019),
  • paper eg_p_6

Photoelectrochemical water splitting with cobalt oxide coated gold nanorods under visible excitation

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Abstract

Photocatalytic water splitting is a promising approach for converting solar energy to chemical energy in the form of hydrogen and oxygen molecules. Plasmonic nanoparticles have shown great potential as photocatalysts for water splitting due to their large absorption efficiency across the entire solar spectrum. Light absorption by nanoparticles leads to the formation of highly energetic electrons and holes, termed as hot carriers, which catalyse many chemical reactions. However, the rapid decay of these hot carriers often limits their practical applications. Recently, it was demonstrated that efficient extraction of hot carriers could be achieved with bimetallic nanoparticles consisting of a plasmonic nanoparticle in close proximity of a more reactive catalytic species such as palladium or platinum, where the catalysis takes place [1, 2].

© 2019 IEEE

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