Self-Assembly and Controllable Regulation of 1,5′-Bitetrazolate-2<i>N</i>-oxide-Based EMOFs toward High Dimensionality
Ze Xu, Tianyang Hou, Xiaopeng Zhang, Feng Yang, Linan Zhang, Shuaijie Jiang, Ming Lu, Yuangang Xu
Abstract
In recent years, energetic metal–organic frameworks (EMOFs) have gained significant attention in the field of energetic materials research. In this paper, we synthesized MOFs by reacting 1,5′-bitetrazolate-2 N -oxide with Co(NO 3 ) 2, Zn(NO 3 ) 2, Cu(NO 3 ) 2, and AgNO 3, respectively. The resulting materials were characterized by using single-crystal X-ray diffraction. EMOFs 2 and 3 exhibited a 1D chain structure, while EMOF 4 displayed a 2D structure and EMOF 5 possessed a 3D framework structure. The structures, thermal stability, thermal decomposition kinetics, and energetic properties of the four EMOFs were thoroughly analyzed and characterized in this study. The results showed that the synthesized EMOFs have a high density (1.933–3.010 g cm –3 ). Among these EMOFs, EMOF 2 displayed the highest decomposition temperature ( T d = 182 °C). Moreover, EMOF 5 exhibited superior energy properties ( D = 7748 m s –1; P = 36.3 Gpa) and demonstrated excellent catalytic effects on the decomposition of ammonium perchlorate.