Dual-Scale Integration Design of Sn-ZnO Catalyst toward Efficient and Stable CO2 Electroreduction

© 2022 Wiley-VCH GmbH.

Bibliographische Detailangaben
Veröffentlicht in:Advanced materials (Deerfield Beach, Fla.). - 1998. - 34(2022), 38 vom: 23. Sept., Seite e2204637
1. Verfasser: Ren, Bohua (VerfasserIn)
Weitere Verfasser: Zhang, Zhen, Wen, Guobin, Zhang, Xiaowen, Xu, Mi, Weng, Yueying, Nie, Yihang, Dou, Haozhen, Jiang, Yi, Deng, Ya-Ping, Sun, Guiru, Luo, Dan, Shui, Lingling, Wang, Xin, Feng, Ming, Yu, Aiping, Chen, Zhongwei
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2022
Zugriff auf das übergeordnete Werk:Advanced materials (Deerfield Beach, Fla.)
Schlagworte:Journal Article carbon dioxide reduction d bandwidth dual-scale electrocatalysis nanoconfinement
Beschreibung
Zusammenfassung:© 2022 Wiley-VCH GmbH.
Electrochemical CO2 reduction to CO is a potential sustainable strategy for alleviating CO2 emission and producing valuable fuels. In the quest to resolve its current problems of low-energy efficiency and insufficient durability, a dual-scale design strategy is proposed by implanting a non-noble active Sn-ZnO heterointerface inside the nanopores of high-surface-area carbon nanospheres (Sn-ZnOHC). The metal d-bandwidth tuning of Sn and ZnO alters the extent of substrate-molecule orbital mixing, facilitating the breaking of the *COOH intermediate and the yield of CO. Furthermore, the confinement effect of tailored nanopores results in a beneficial pH distribution in the local environment around the Sn-ZnO nanoparticles and protects them against leaching and aggregating. Through integrating electronic and nanopore-scale control, Sn-ZnO@HC achieves a quite low potential of -0.53 V vs reversible hydrogen electrode (RHE) with 91% Faradaic efficiency for CO and an ultralong stability of 240 h. This work provides proof of concept for the multiscale design of electrocatalysts
Beschreibung:Date Revised 27.09.2022
published: Print-Electronic
Citation Status PubMed-not-MEDLINE
ISSN:1521-4095
DOI:10.1002/adma.202204637