title: Homogeneous electrocatalytic water oxidation at neutral pH by a robust macrocyclic nickel(II) complex.
abstract: The development of an earth-abundant, first-row water oxidation catalyst that operates at neutral pH and low overpotential remains a fundamental chemical challenge. Herein, we report the first nickel-based robust homogeneous water oxidation catalyst, which can electrocatalyze water oxidation at neutral pH and low overpotential in phosphate buffer. The results of DFT calculations verify that the O-O bond formation in catalytic water oxidation prefers a HO-OH coupling mechanism from a cis-isomer of the catalyst.
authors.affiliation: MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, State Key Laboratory of Optoelectronic Materials and Technologies, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275 (China).
authors.forename: Mei
authors.initials: M
authors.lastname: Zhang
authors.forename: Ming-Tian
authors.initials: MT
authors.lastname: Zhang
authors.forename: Cheng
authors.initials: C
authors.lastname: Hou
authors.forename: Zhuo-Feng
authors.initials: ZF
authors.lastname: Ke
authors.forename: Tong-Bu
authors.initials: TB
authors.lastname: Lu
keywords: HOOH coupling; electrocatalysis; homogeneous water oxidation; nickel