Schematic representation of the synthesis routes of Co–NiOx@GDY. (IMAGE)
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The synthesis route for the controlled synthesis of Co-NiOx@GDY through a three-step strategy including the first growth of a film of cobalt-nickel bimetal mixed nanosheets on the surface of nickel foam (Co-NiOxHy), followed by a calcination treatment to obtain Co-NiOx, and finally the in-situ growth of ultrathin GDY films on the surface of Co-NiOx through a cross-coupling reaction with hexaethynylbenzene (HEB) as the precursor.
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