Nanocarbon-loaded atomic-scale dispersion rhodium catalyst, preparation method thereof, and application of catalyst in hydrogenation reaction of nitrile compounds

Abstract

The invention discloses a nanocarbon-loaded atomic-scale dispersion rhodium catalyst, a preparation method thereof, and application of the catalyst in hydrogenation reaction of nitrile compounds, and belongs to the technical field of synthesis of organic chemical raw materials. The catalyst takes nanocarbon as a carrier, precious metal rhodium is uniformly loaded on the surface of the nanocarbon carrier in an atomic-scale dispersion form, and the loading capacity of rhodium is 0.01%-0.38%. The catalyst is used for catalytic hydrogenation reaction of nitrile compounds, and the nitrile compounds are catalyzed under mild reaction conditions to generate secondary amine compounds; the catalytic reaction conditions are as follows: the reaction temperature is 40-80 DEG C, and the pressure is 0.2-0.8 MPa; and the catalyst is low in synthesis raw material cost, simple in preparation process, stable in performance, high in catalytic activity and good in selectivity.

Description

technical field [0001] The invention relates to the technical field of synthesis of organic chemical raw materials, in particular to a nano-carbon-supported atomically dispersed rhodium catalyst, a preparation method thereof, and an application in the hydrogenation reaction of nitrile compounds. Background technique [0002] Secondary amine compounds are an important compound in organic chemistry and widely exist in natural products and bioactive molecules. Although secondary amine compounds are widely used and exist in many different materials, there are still huge challenges in the synthesis of secondary amine compounds, and traditional synthesis methods inevitably produce waste or environmental problems. The study of new synthetic methods is imminent. In recent years, the hydrogenation of nitrile compounds has attracted extensive attention because of its ability to selectively obtain different amine compounds. However, the control of the reaction selectivity largely depe...

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Problems solved by technology

[0004] In order to solve the problems of harsh reaction conditions and poor selectivity in the hydrogenation reaction of catalytic nitrile compounds, the invention provides a nanometer carbon-supported atomically dispersed rhodium catalyst and a preparation method thereof for the hydrogenation reaction of nitrile compounds. Nanocarbon-supported rhodium catalysts are rhodium catalysts supported by graphene / nanodiamond composites

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