title: Bioinspired Cobalt-Citrate Metal-Organic Framework as an Efficient Electrocatalyst for Water Oxidation.
abstract: Efficient and cost-effective oxygen evolution reaction (OER) electrocatalysts are closely associated with many important energy conversion technologies. Herein, we first report an oxygen-evolving cobalt-citrate metal-organic framework (MOF, UTSA-16) for highly efficient electrocatalytic water oxidation. Benefiting from synergistic cooperation of intrinsic open porous structure, in situ formed high valent cobalt species, and existing Co4O4cubane, the UTSA-16 exhibits excellent activity toward OER catalysis in alkaline medium. The UTSA-16 needs only 408 mV to offer a current density of 10 mA cm-2for OER catalysis, which is superior to that of most MOF-based electrocatalysts and the standard Co3O4counterpart. The present finding provides a better understanding of electroactive MOFs for water oxidation.
authors.affiliation: Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University , Nanchong 637002, P.R. China.
authors.forename: Jing
authors.identifier: http://orcid.org/0000-0001-8592-5130
authors.initials: J
authors.lastname: Jiang
authors.affiliation: Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University , Nanchong 637002, P.R. China.
authors.forename: Lan
authors.initials: L
authors.lastname: Huang
authors.affiliation: Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University , Nanchong 637002, P.R. China.
authors.forename: Xiaomin
authors.initials: X
authors.lastname: Liu
authors.affiliation: Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University , Nanchong 637002, P.R. China.
authors.forename: Lunhong
authors.initials: L
authors.lastname: Ai
keywords: cobalt; electrocatalysis; metal−organic framework; oxygen evolution reaction; water oxidation