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Single‐Atom Manganese‐Catalyzed Oxygen Evolution Drives the Electrochemical Oxidation of Silane to Silanol.

Authors :
Tang, Hai‐Tao
Zhou, He‐Yang
Pan, Ying‐Ming
Zhang, Jia‐Lan
Cui, Fei‐Hu
Li, Wen‐Hao
Wang, Dingsheng
Source :
Angewandte Chemie. Jan2024, Vol. 136 Issue 3, p1-10. 10p.
Publication Year :
2024

Abstract

The oxygen evolution reaction (OER), characterized by a four‐electron transfer kinetic process, represents a significant bottleneck in improving the efficiency of hydrogen production from water electrolysis. Consequently, extensive research efforts have been directed towards identifying single‐atom electrocatalysts with exceptional OER performance. Despite the comprehensive understanding of the OER mechanism, its application to other valuable synthetic reactions has been limited. Herein, we leverage the MOOH intermediate, a key species in the Mn−N−C single‐atom catalyst (Mn‐SA@NC), which can be cyclically delivered in the OER. We exploit this intermediate' s capability to facilitate electrophilic transfer with silane, enabling efficient silane oxidation under electrochemical conditions. The SAC electrocatalytic system exhibits remarkable performance with catalyst loadings as low as 600 ppm and an exceptional turnover number of 9132. Furthermore, the catalytic method demonstrates stability under a 10 mmol flow chemistry setup. By serving as an OER electrocatalyst, the Mn‐SA@NC drives the entire reaction, establishing a practical Mn SAC‐catalyzed organic electrosynthesis system. This synthesis approach not only presents a promising avenue for the utilization of electrocatalytic OER but also highlights the potential of SACs as an attractive platform for organic electrosynthesis investigations. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
00448249
Volume :
136
Issue :
3
Database :
Academic Search Index
Journal :
Angewandte Chemie
Publication Type :
Academic Journal
Accession number :
174690784
Full Text :
https://doi.org/10.1002/ange.202315032