Enhanced CO2 electroreduction efficiency through secondary coordination effects on a pincer iridium catalyst.
An iridium(III) trihydride complex supported by a pincer ligand with a hydrogen bond donor in the secondary coordination sphere promotes the electrocatalytic reduction of CO2 to formate in water/acetonitrile with excellent Faradaic efficiency and low overpotential. Preliminary mechanistic experiments indicate formate formation is facile while product release is a kinetically difficult step.
School of Engineering, Brown University, Providence, RI, USA. tayhas_palmore@brown.edu.
Steven T
ST
Ahn
Elizabeth A
EA
Bielinski
Elizabeth M
EM
Lane
Yanqiao
Y
Chen
Wesley H
WH
Bernskoetter
Nilay
N
Hazari
G Tayhas R
GT
Palmore