Pulse electrodeposition of Ag, Cu nanoparticles on TiO2 nanoring/nanotube arrays for enhanced photoelectrochemical water splitting

Advanced Powder Technology（2022）

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摘要

•Two-step pulse electrodeposition was applied to prepare bimetallic photoanodes.•Cu nanoparticle size was optimized by tuning electrodeposition cycle times.•Reducing electrolyte concentration can effectively decrease deposition density.•Both XPS and LSV confirm that bimetal is less prone to oxidation than monometal.•Bimetallic system has a large potential drop of Helmholtz layer simulated by MD.

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关键词

Bimetallic Ag–Cu nanoparticles,Pulse electrodeposition method,Deposition density,Interface electrostatic properties,Photoelectrochemical water splitting

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