Tsinghua University

Quan-Hong Yang

Chen Zhang

Wei Lv

Bao-Hua Li

Fei-Yu Kang

Ying Tao

Wei Wei

Xiao-Yu Zheng

Cong-Hui You

A method for making graphene-based highly dense but porous carbon material with a high degree of hardness includes forming a sol by dispersing a graphene-based component in a solvent; preparing a graphene-based gel by reacting the sol in a reacting container at a temperature of about 20&#xb0; C. to about 500&#xb0; C. for about 0.1 hours to about 100 hours; and drying the gel at a temperature of about 0&#xb0; C. to about 200&#xb0; C. to obtain a material. A graphene-based porous carbon material and applications thereof are also disclosed.

High-density and high-hardness graphene-based porous carbon material, method for making the same, and applications using the same

A method for manufacturing graphene-based material is disclosed. A graphene oxide dispersion includes graphene oxide dispersed in solvent. A hydrogen sulfide gas is introduced to the graphene oxide dispersion at a reacting temperature to achieve a graphene dispersion. The hydrogen sulfide reduces graphene oxide into graphene, and elemental sulfur produced from the hydrogen sulfide is deposited on surfaces of the graphene. The solvent and elemental sulfur are removed to achieve a graphene composite material.

Methods for manufacturing graphene based material

Methods of manufacturing graphene based material

Growing community of inventors

Shenzhen, China

Quan-Hong Yang