| abstract |
The invention belongs to the technical field of catalytic materials, and discloses a palladium catalyst supported by lignin carbon nanospheres, a preparation method and application thereof. The preparation method is as follows: dissolving lignin in N,N-dimethylformamide to obtain lignin electrostatic spray solution, and then obtain lignin nano-microspheres by electrostatic spraying; Preoxidation is carried out at a temperature of 280° C., followed by carbonization treatment at a temperature of 400 to 900° C. to obtain lignin carbon nanospheres, and finally palladium nanoparticles are loaded to obtain the palladium catalyst supported on lignin carbon nanospheres. The preparation method of the present invention has easy-to-obtain raw materials, is energy-saving and environment-friendly, and the obtained product has good microscopic appearance, dispersion performance and catalytic performance, and can be used for catalyzing the nitrile group substitution reaction of halogenated aromatic hydrocarbons. |