Zn-MOFX with controllable morphology is used to accelerate the thermal decomposition of ammonium perchlorate

By altering the solvent environment to guide the growth of precursors on the (001) crystal plane and the selective adsorption of surfactants, we achieved precise morphological control of Zn-MOF, thereby synthesizing a series of Zn-MOF X with excellent catalytic performance. • The addition of Zn-MOF D effectively addressed the shortcomings of high decomposition temperature and low heat release of AP, significantly reducing its high-temperature decomposition peak by 99.2 °C and significantly increasing the heat release by 469.3%. • 3.The synergistic effect of the high specific surface area and highly active metal centers of Zn-MOF D enhances the thermal decomposition of AP. Modulating the thermal decomposition behavior of ammonium perchlorate (AP) is an effective strategy for optimizing the combustion efficiency of composite solid propellants (CSPs). In this paper, a series of energetic metal-organic frameworks (Zn-MOF X ) with different morphologies were synthesized by solvothermal method and room temperature method, and all of them could effectively catalyze the thermal decomposition of AP. Notably, with the addition of only 2wt% Zn-MOF D , the high-temperature decomposition peak (T HTD ) of AP decreased from 471.4 °C to 372.2 °C, and the heat release increased from 888.3 J·g -1 to 5057.5 J·g -1 . All of this is attributed to its unique structure and high-energy ligands. These results demonstrate that the highly energetic Zn-MOF D material shows great promise as an efficient additive for enhancing the combustion performance of AP-based propellants.