Nickel-Based Metal-Organic Frameworks as Electrocatalysts for the Oxygen Evolution Reaction (OER)

Linda Sondermann, Wulv Jiang, Meital Shviro, Alex Spieß, Dennis Woschko, Lars Rademacher, Christoph Janiak

Research output: Contribution to journalArticlepeer-review

28 Scopus citations

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.

Original languageEnglish
Article number1241
JournalMolecules
Volume27
Issue number4
DOIs
StatePublished - 12 Feb 2022
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2022 by the authors. Licensee MDPI, Basel, Switzerland.

Keywords

  • Electrocatalysis
  • Ketjenblack
  • Metal-organic frameworks (MOF)
  • Nickel
  • Oxygen evolution reaction (OER)

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