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journal article·2021-09Open access

Metamorphosis of Heterostructured Surface‐Mounted Metal–Organic Frameworks Yielding Record Oxygen Evolution Mass Activities

Shujin Hou, Weijin Li, Sebastian Watzele, Regina M. Kluge, Song Xue, Shanshan Yin, Xinyu Jiang, Markus Döblinger, Alexander Welle, Batyr Garlyyev, Max Koch, Peter Müller‐Buschbaum, Christof Wöll, Aliaksandr S. Bandarenka, Roland A. Fischer

Advanced Materials· Volume 33· Issue 38
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Source abstract

Abstract

Abstract Materials derived from surface‐mounted metal–organic frameworks (SURMOFs) are promising electrocatalysts for the oxygen evolution reaction (OER). A series of mixed‐metal, heterostructured SURMOFs is fabricated by the facile layer‐by‐layer deposition method. The obtained materials reveal record‐high electrocatalyst mass activities of ≈2.90 kA g−1 at an overpotential of 300 mV in 0.1 m KOH, superior to the benchmarking precious and nonprecious metal electrocatalysts. This property is assigned to the particular in situ self‐reconstruction and self‐activation of the SURMOFs during the immersion and the electrochemical treatment in alkaline aqueous electrolytes, which allows for the generation of NiFe (oxy)hydroxide electrocatalyst materials of specific morphology and microstructure.
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Research context

Energy storageCatalysis & surfacesMaterials processing

OpenAlex topics: Electrocatalysts for Energy Conversion · Electrochemical Analysis and Applications · Advanced battery technologies research

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Physics of Energy Conversion and Storage Physik‐Department Technische Universität München James‐Franck‐Str. 1 85748 Garching Germany

Catalysis Research Center TUM Ernst‐Otto‐Fischer‐Straße 1 85748 Garching Germany

Chair of Inorganic and Metal–Organic Chemistry Department of Chemistry Technische Universität München Lichtenbergstraße 4 85748 Garching Germany

Lehrstuhl für Funktionelle Materialien Physik‐Department Technische Universität München James‐Franck‐Str. 1 85748 Garching Germany

Department of Chemistry Ludwig‐Maximilians‐Universität München Butenandtstr. 5–13 (E) 81377 München Germany

Institut für Funktionelle Grenzflächen (IFG) Karlsruhe Nano Micro Facility (KNMF) Karlsruher Institut für Technologie (KIT) 76021 Karlsruhe Germany

Department of Chemistry Technische Universität München Lichtenbergstraße 4 85748 Garching Germany

Heinz Maier‐Leibnitz Zentrum (MLZ) Technische Universität München Lichtenbergstr. 1 85748 Garching Germany

Funding

Deutsche Forschungsgemeinschaft · Carl Friedrich von Siemens Stiftung · Alexander von Humboldt-Stiftung · China Scholarship Council

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