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  Wu, Q.; Alkemper, A.; Lauterbach, S.; Hofmann, J.P.; Einert, M.: Fabrication of nanocrystalline high-entropy oxide CoNiFeCrMnO_x thin film electrodes by dip-coating for oxygen evolution electrocatalysis. Energy Advances 3 (2024), p. 765-773

10.1039/D4YA00026A
Open Access Version (externer Anbieter)

Abstract:
The variation of calcination conditions allows for adjusting the oxidation states and coordination sites of near-surface elements in sol–gel-derived high-entropy oxides. Optimized synthesis conditions resulted in fabrication of nanocrystalline CoNiFeCrMnOx thin films with 1–2 nm pores, showing low OER overpotentials of 258 mV VS. RHE at 10 mA cm−2.