Preparation of Graphene-based Cu-MOF Derivative Catalysts and Their Catalytic Performance for Cyclotrimethylenetrinitramine Thermal Decomposition

Abstract

In order to improve the thermal decomposition performance of cyclotrimethylenetrinitramine (RDX), graphene-based Cu-MOF derivative catalysts were prepared by solvothermal and heat treatment.Transition metal ions were ligated to the surface of graphene oxide (GO) by organic ligands, and then heat-treated to obtain two-dimensional reduction-oxidation graphene-based metal cluster catalysts.The morphology and structure of these catalysts at different temperatures and their effects on the thermal decomposition of RDX were studied.The results showed that the prepared GO/Cu-MOF has a small particle size and good dispersibility.At 300 , the catalyst exhibited a porous structure.Thermal analysis showed that the decomposition temperature of RDX was reduced by the addition of a small amount of this catalyst, which may be due to the good conductivity of graphene oxide and the strong gain and loss electron ability of the metal clusters.The presence of graphene oxide increases the catalytic activity of metal clusters, and the metal clusters and graphene oxide have a positive synergistic effect, thus improving the thermal decomposition performance of RDX.