FIELD: chemistry; hydrogen power engineering.
SUBSTANCE: invention relates to hydrogen power engineering and specifically to development of a method of producing efficient hydrogenation catalysts which can be used in making hydrogen-accumulating materials and devices based thereon. Described is a method of producing a nickel-graphene catalyst, which involves dispersing an aqueous solution of a nickel salt in an aqueous suspension of graphite oxide and reducing graphite oxide and nickel (II) at temperature of 300-500 °C in a stream of hydrogen. In the disclosed method, drying of an aqueous dispersion of graphite oxide and a nickel salt is carried out at atmospheric pressure and temperature of 30-95 °C with subsequent annealing of mixture at 700-900 °C in inert gas flow.
EFFECT: reduced duration of production and increased output of nickel-graphene catalyst.
3 cl, 5 ex
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Authors
Dates
2025-02-21—Published
2024-04-15—Filed