As a new kind of functional material with high melting point and hardness, good thermal stability and mechanical stability, excellent corrosion resistance, molybdenum carbide has been widely used in various fields such as high temperature resistance, abrasion resistance and chemical resistance. Has a similar precious metal electronic structure and catalytic properties. Widely used in hydrogen-related reactions such as alkane isomerization, unsaturated hydrocarbon hydrogenation, hydrodesulfurization and denitrification reactions for the super-hard tool materials, wear-resistant materials, heating materials and high-temperature structural materials.