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The present invention relates to a nickel iron diselenide compound of general formula (I): NixFe1-xSe2, wherein 0 < x < 1, and to the use of this compound as a precursor of catalysts for oxygen evolution reaction (OER). This invention also concerns methods for the preparation of said precursor of catalysts for OER, the resulting catalysts, and applications thereof.
Jeremy Luterbacher, Stefania Bertella, Songlan Sun, Anastasiia Komarova