Journal Article

FZJ-2022-01367

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Nickel-Based Metal-Organic Frameworks as Electrocatalysts for the Oxygen Evolution Reaction (OER)

Sondermann, L. ; Jiang, W.RWTH* ; Shviro, M. (Corresponding author)FZJ* ; Spieß, A. ; Woschko, D. ; Rademacher, L. ; Janiak, C.

2022
MDPI Basel

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Please use a persistent id in citations: http://hdl.handle.net/2128/32088  doi:10.3390/molecules27041241

Abstract: The exploration of earth-abundant electrocatalysts with high performance for the oxygen evolution reaction (OER) is eminently desirable and remains a significant challenge. The composite of the metal-organic framework (MOF) Ni10Co-BTC (BTC = 1,3,5-benzenetricarboxylate) and the highly conductive carbon material ketjenblack (KB) could be easily obtained from the MOF synthesis in the presence of KB in a one-step solvothermal reaction. The composite and the pristine MOF perform better than commercially available Ni/NiO nanoparticles under the same conditions for the OER. Activation of the nickel-cobalt clusters from the MOF can be seen under the applied anodic potential, which steadily boosts the OER performance. Ni10Co-BTC and Ni10Co-BTC/KB are used as sacrificial agents and undergo structural changes during electrochemical measurements, the stabilized materials show good OER performances.

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Contributing Institute(s):

1. Elektrochemische Verfahrenstechnik (IEK-14)

Research Program(s):

1. 1231 - Electrochemistry for Hydrogen (POF4-123) (POF4-123)

Appears in the scientific report 2022

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