Graphene palladium carbon catalyst

Abstract

The invention relates to the technical field of preparation and application of graphene, in particular to a graphene palladium carbon catalyst. A preparation method of the graphene palladium carbon catalyst comprises the following steps: S1, preparing modified activated carbon slurry sensitized by the graphene; S2, preparing MoO3 nano particles; S3, preparing a MoO3 / activated carbon composite carrier material; S4, preparing a PdNO3 solution; S5, preparing a palladium carbon catalyst. The graphene palladium carbon catalyst, prepared by the preparation method disclosed by the invention, has theadvantages that palladium microcrystalline particles as an active component are small to nanometer scale, the content is high and more surface atoms are exposed; in addition, the specific surface areais large and the active component has good dispersity on the surface of a carrier.

Description

technical field [0001] The invention relates to the technical fields of graphene manufacture and graphene application, in particular to a graphene palladium carbon catalyst. Background technique [0002] The supported nano-noble metal catalyst has good hydrogenation performance, and is used in the catalytic hydrogenation of various unsaturated organic compounds in petrochemical, pharmaceutical, dye, pesticide and other industries. As a hydrogenation catalyst with excellent performance, nano-palladium catalyst is often used in the selective hydrogenation of alkenes, nitro groups, nitroso groups, ketones, aldehydes, etc., and occupies an extremely important position in the chemical industry. It is generally believed that a supported nano-palladium catalyst with excellent performance should have the following characteristics in structure: 1. The active component palladium microcrystalline particles should be as small as nanometers, with high content and more exposed atoms on th...

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Problems solved by technology

[0005] The object of the present invention is to provide a palladium-carbon catalyst with little activity difference, high product activity and stability, to solve the problem of preparing catalysts prepared by different palladium-carbon catalyst preparation methods proposed in the background technology, according to the active metal particle size and on the carrier The difference in the distribution of the catalyst leads to a large difference in the activity of the catalyst, and the problem that the product activity is unstable and not high

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