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- Title
First Application of Non‐Metallic A<sub>2</sub>B Type Silicon Corrole Complexes in Electrocatalytic Hydrogen Evolution.
- Authors
Liu, Zhen‐Wu; Yang, Gang; Xu, Shi‐Yin; Xie, Wan‐Yue; Yao, Yan‐Fang; Xiao, Xin‐Yan; Si, Li‐Ping; Liu, Hai‐Yang
- Abstract
In this study, we have successfully synthesized two non‐metallic‐based silicon corrole complexes (F10C−Si, F10C−CN−Si) and used them as HER electrocatalysts for the first time. Electrochemical studies indicate the electrocatalytic HER may go via EE‐CEEC (E: electron transfer step, C: chemical step) pathway. Notably, it can be seen that the introduction of electron‐withdrawing cyano group on the meso‐phenyl of the corrole macrocycle may enhance the catalytic activity of silicon corrole complexes. In DMF with TsOH as the proton source, F10C−CN−Si exhibits a turnover frequency (TOF) of 331.48 s−1 and a high catalytic efficiency (C.E) of 1.29. Furthermore, the catalytic prowess of the silicon corrole complexes extends to neutral aqueous solution, with F10C−CN−Si achieving a TOF of 52.72 h−1 at an overpotential of 1188 mV. This study extends the application of non‐metallic‐based silicon corrole molecular catalysts in the electrocatalytic HER field.
- Subjects
HYDROGEN evolution reactions; SILICON; CHARGE exchange; CATALYTIC activity; HYDROGEN; CYANO group; MACROCYCLIC compounds
- Publication
European Journal of Inorganic Chemistry, 2024, Vol 27, Issue 15, p1
- ISSN
1434-1948
- Publication type
Article
- DOI
10.1002/ejic.202300790