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  A Highly-Efficient Oxygen Evolution Electrocatalyst Derived from a Metal-Organic Framework and Ketjenblack Carbon Material

Öztürk, S., Moon, G.-H., Spieß, A., Budiyanto, E., Roitsch, S., Tüysüz, H., et al. (2021). A Highly-Efficient Oxygen Evolution Electrocatalyst Derived from a Metal-Organic Framework and Ketjenblack Carbon Material. ChemPlusChem, 86(8), 1106-1115. doi:10.1002/cplu.202100278.

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 Creators:
Öztürk, Seçil1, Author
Moon, Gun-Hee2, 3, Author           
Spieß, Alex1, Author
Budiyanto, Eko2, Author           
Roitsch, Stefan4, Author
Tüysüz, Harun2, Author           
Janiak, Christoph1, Author
Affiliations:
1Institut für Anorganische Chemie und Strukturchemie, Heinrich-Heine-Universität Düsseldorf, Universitätsstraße 1, 40225 Düsseldorf, Germany, ou_persistent22              
2Research Group Tüysüz, Max-Planck-Institut für Kohlenforschung, Max Planck Society, ou_1950290              
3Extreme Materials Research Center, Korea Institute of Science and Technology (KIST), Seoul, South Korea, ou_persistent22              
4Department für Chemie, Universität zu Köln, Greinstr. 4–6, D-50939 Köln, Germany, ou_persistent22              

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Free keywords: catalyst activation; electrocatalysis; ketjenblack; metal organic frameworks; oxygen evolution reaction
 Abstract: The composite of the metal-organic framework (MOF) Ni(Fe)-MOF-74 and the highly conductive carbon material ketjenblack (KB) could be easily obtained from the in-situ MOF synthesis in a one-step solvothermal reaction. The composite material features a remarkable electrochemical oxygen evolution reaction (OER) performance where the overpotential at 10 mA/cm2 and the current density at 1.7 VRHE are recorded as 0.274 VRHE and 650 mA/cm2, respectively, in 1 mol/L KOH. In particular, the activation of nickel-iron clusters from the MOF under an applied anodic bias steadily boosts the OER performance. Although Ni(Fe)-MOF-74 goes through some structural modification during the electrochemical measurements, the stabilized and optimized composite material shows excellent OER performance. This simple strategy to design highly-efficient electrocatalysts, utilizing readily available precursors and carbon materials, will leverage the use of diverse metal-organic complexes into electrode fabrication with a high energy conversion efficiency.

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Language(s): eng - English
 Dates: 2021-06-162021-07-012021-08-01
 Publication Status: Published online
 Pages: 10
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1002/cplu.202100278
 Degree: -

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Title: ChemPlusChem
Source Genre: Journal
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Publ. Info: Weinheim : Wiley-VCH
Pages: - Volume / Issue: 86 (8) Sequence Number: - Start / End Page: 1106 - 1115 Identifier: ISSN: 2192-6506
CoNE: https://pure.mpg.de/cone/journals/resource/2192-6506