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Title: Antimony Complexes for Electrocatalysis: Activity of a Main-Group Element in Proton Reduction

Journal Article · · Angewandte Chemie (International Edition)

Abstract Main‐group complexes are shown to be viable electrocatalysts for the H 2 ‐evolution reaction (HER) from acid. A series of antimony porphyrins with varying axial ligands were synthesized for electrocatalysis applications. The proton‐reduction catalytic properties of TPSb(OH) 2 (TP=5,10,15,20‐tetra( p ‐tolyl)porphyrin) with two axial hydroxy ligands were studied in detail, demonstrating catalytic H 2 production. Experiments, in conjunction with quantum chemistry calculations, show that the catalytic cycle is driven via the redox activity of both the porphyrin ligand and the Sb center. This study brings insight into main group catalysis and the role of redox‐active ligands during catalysis.

Research Organization:
Yale Univ., New Haven, CT (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Chemical Sciences, Geosciences & Biosciences Division; TomKat Foundation; USDOE
Grant/Contract Number:
FG02-07ER15909
OSTI ID:
1533110
Alternate ID(s):
OSTI ID: 1374916
Journal Information:
Angewandte Chemie (International Edition), Vol. 56, Issue 31; ISSN 1433-7851
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English

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