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Nano-crumples induced Sn-Bi bimetallic interface pattern with moderate electron bank for highly efficient CO(2) electroreduction

CO(2) electroreduction reaction offers an attractive approach to global carbon neutrality. Industrial CO(2) electrolysis towards formate requires stepped-up current densities, which is limited by the difficulty of precisely reconciling the competing intermediates (COOH* and HCOO*). Herein, nano-crum...

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Detalles Bibliográficos
Autores principales: Ren, Bohua, Wen, Guobin, Gao, Rui, Luo, Dan, Zhang, Zhen, Qiu, Weibin, Ma, Qianyi, Wang, Xin, Cui, Yi, Ricardez–Sandoval, Luis, Yu, Aiping, Chen, Zhongwei
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9072316/
https://www.ncbi.nlm.nih.gov/pubmed/35513361
http://dx.doi.org/10.1038/s41467-022-29861-w
Descripción
Sumario:CO(2) electroreduction reaction offers an attractive approach to global carbon neutrality. Industrial CO(2) electrolysis towards formate requires stepped-up current densities, which is limited by the difficulty of precisely reconciling the competing intermediates (COOH* and HCOO*). Herein, nano-crumples induced Sn-Bi bimetallic interface-rich materials are in situ designed by tailored electrodeposition under CO(2) electrolysis conditions, significantly expediting formate production. Compared with Sn-Bi bulk alloy and pure Sn, this Sn-Bi interface pattern delivers optimum upshift of Sn p-band center, accordingly the moderate valence electron depletion, which leads to weakened Sn-C hybridization of competing COOH* and suitable Sn-O hybridization of HCOO*. Superior partial current density up to 140 mA/cm(2) for formate is achieved. High Faradaic efficiency (>90%) is maintained at a wide potential window with a durability of 160 h. In this work, we elevate the interface design of highly active and stable materials for efficient CO(2) electroreduction.