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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 (+3 others)
2021 Advanced materials 33(38)  

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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
more » ... 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.
doi:10.3204/pubdb-2022-00572 fatcat:fhtawbfg3zhwvkkdnvqxus725i
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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. "Metamorphosis of Heterostructured Surface‐Mounted Metal–Organic Frameworks Yielding Record Oxygen Evolution Mass Activities." Advanced materials 33(38) (2021) 2103218 (2021). doi:10.1002/adma.202103218