Preparation method of MoS2-modified three-dimensional porous carbon-based composite material for electro-catalytic hydrogen evolution

The invention relates to the field of nanometer materials, and provides a preparation method of a MoS2-modified three-dimensional porous carbon-based composite material for electro-catalytic hydrogenevolution. The method specifically comprises the following steps: using a three-dimensional porous carbon-based material as a carrier, using ammonium tetrathiomolybdate as a sulfur source and a molybdenum source, transferring into a reaction kettle, and preparing the MoS2-modified three-dimensional porous carbon-based composite material by using a one-step solvothermal method. According to the invention, the method is simple and convenient to operate and low in cost; the synthesized composite material has an open three-dimensional porous structure, and easily achieves the migration of electrolyte and the release of hydrogen; and ultrathin MoS2 nano-sheets are uniformly and vertically arranged on a framework, so that the material shows excellent hydrogen evolution catalytic activity and excellent conductivity in an