Method for efficiently decomposing hydrogen peroxide by using graphene-coated cobalt catalyst under acidic condition
A technology of graphene coating and cobalt catalyst, which is applied in the field of materials chemistry, can solve the problems of increasing the difficulty of dissolution, separation and purification, recycling costs, oxidative damage of surface active groups, collapse of pore structure, etc., and achieves low raw material cost and good catalysis Performance, effect of preventing dissolution
Pending Publication Date: 2021-11-12
CHINA UNIV OF PETROLEUM (EAST CHINA)
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The invention discloses a method for efficiently decomposing hydrogen peroxide by using a graphene-coated cobalt catalyst under an acidic condition, which comprises the following steps: mixing diaminomaleonitrile and cobalt salt, carrying out hydrothermal treatment at 135 DEG C for 12 hours, washing and drying the generated precipitate, heating to 450-650 DEG C in an inert atmosphere, keeping for 2-4 hours, and carrying out acid pickling and drying to obtain the catalyst. The graphene-coated cobalt catalyst prepared by the invention can efficiently decompose H2O2 into O2 and H2O so as to eliminate potential safety hazards caused by excess H2O2 in industrial production. The catalyst is stable in structure and performance, shows good catalytic performance in a strong acid environment, and can be reused. The catalyst is suitable for reducing the concentration of H2O2 to a safe level in various liquid phase systems, and due to the advantages, the catalyst is expected to be produced on a large scale and applied to industrial production.
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