Electrochemical Reduction of CO(2) on Hollow Cubic Cu(2)O@Au Nanocomposites

Surfactant-free and low Au loading Cu(2)O@Au and Au hollow cubes, based on electrodeposited Cu(2)O cubes as sacrificed templates, were prepared by means of a galvanic replacement reaction (GRR). The electrocatalytical performance of the as-prepared catalysts towards carbon dioxide (CO(2)) electroche...

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Detalles Bibliográficos
Autores principales: Tan, Wei, Cao, Bo, Xiao, Wenqiu, Zhang, Min, Wang, Shoushan, Xie, Shilei, Xie, Dong, Cheng, Faliang, Guo, Qingquan, Liu, Peng
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer US 2019
Materias:
Nano Express
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6384290/
https://www.ncbi.nlm.nih.gov/pubmed/30790094
http://dx.doi.org/10.1186/s11671-019-2892-3
Descripción
Sumario:Surfactant-free and low Au loading Cu(2)O@Au and Au hollow cubes, based on electrodeposited Cu(2)O cubes as sacrificed templates, were prepared by means of a galvanic replacement reaction (GRR). The electrocatalytical performance of the as-prepared catalysts towards carbon dioxide (CO(2)) electrochemical reduction was evaluated. The experimental results show that Cu(2)O@Au catalyst can convert CO(2) to carbon monoxide (CO) with a maximum Faradaic efficiency (FE) of ~ 30.1% at the potential of − 1.0 V (vs. RHE) and is about twice the FE of the other catalysts at the same potential. By comparison, such electrocatalytical enhancement is attributed to the metal-oxide interface in Cu(2)O@Au.

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