▎ 摘　　要

It is a great challenge to find a reusable solid fuel material with both high absorption capability for organic liquids and clean use. In this work, a highly reusable and environmentally friendly solid fuel material based on three-dimensional graphene foam (3D-GF) was prepared, with high absorption capability for organic liquid fuels up to over 900 times its own weight and outstanding fire resistance. This 3D-GF shows high combustion efficiency, exceeding 99%. A rather clean burning was observed without toxic gases and soot particles released, as in the case of the conventional solid fuel materials. More importantly, the reusability and mechanical stability of the material are kept almost unchanged after 10 cycles of adsorption combustion with organic liquid fuels.