Universität zu Köln

Oeztuerk, Secil, Moon, Gun-hee, Spiess, Alex, Budiyanto, Eko ORCID: 0000-0001-6184-8863, Roitsch, Stefan, Tueysuez, Harun and Janiak, Christoph (2021). A Highly-Efficient Oxygen Evolution Electrocatalyst Derived from a Metal-Organic Framework and Ketjenblack Carbon Material. ChemPlusChem, 86 (8). S. 1106 - 1116. WEINHEIM: WILEY-V C H VERLAG GMBH. ISSN 2192-6506

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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/cm(2) and the current density at 1.7 V-RHE are recorded as 0.274 V-RHE and 650 mA/cm(2), 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.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Oeztuerk, Secil UNSPECIFIED UNSPECIFIED UNSPECIFIED Moon, Gun-hee UNSPECIFIED UNSPECIFIED UNSPECIFIED Spiess, Alex UNSPECIFIED UNSPECIFIED UNSPECIFIED Budiyanto, Eko UNSPECIFIED orcid.org/0000-0001-6184-8863 UNSPECIFIED Roitsch, Stefan UNSPECIFIED UNSPECIFIED UNSPECIFIED Tueysuez, Harun UNSPECIFIED UNSPECIFIED UNSPECIFIED Janiak, Christoph UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-584527
DOI:	10.1002/cplu.202100278
Journal or Publication Title:	ChemPlusChem
Volume:	86
Number:	8
Page Range:	S. 1106 - 1116
Date:	2021
Publisher:	WILEY-V C H VERLAG GMBH
Place of Publication:	WEINHEIM
ISSN:	2192-6506
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language ELECTROCHEMICAL REDUCTION; CATALYSTS; NICKEL; NI; NANOPARTICLES; STABILITY; MOF; CO Multiple languages Chemistry, Multidisciplinary Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/58452