Molecular perovskites as a new platform for designing advanced multi-component energetic crystals

Room-temperature ferroelectric and ferroelastic orders coexisting in a new tetrafluoroborate-based perovskite

“…[23][24][25][26][27][28][29] For instance, by employing the tetrahedral perchlorate ion (ClO 4 − ), we recently constructed a large family of molecular perovskites being promising practicable high-energetic materials. [30][31][32] Similarly, as another well-known tetrahedral ion, tetrafluoroborate (BF 4 − ) catches increasing attentions with an expectation to serve as bridging ligand for constructing molecular perovskites. Since the first tetrafluoroborate-based perovskite, (H 2 dabco)(NH 4 )(BF 4 ) 3 (H 2 dabco 2+ = 1,4-diazabicyclo[2.2.2]octane-1,4-diium), was reported by Liu et al in 2011, 33 the efforts to date have added five instances.…”

Thermal kinetics, thermodynamics, decomposition mechanism, and thermal safety performance of typical ammonium perchlorate-based molecular perovskite energetic materials

“…And then put the obtained Es, as into Equation ( 13), (14), and (15) to get enthalpy (ΔH), entropy (ΔS) and Gibbs free energy (ΔG) 59 . ( 13) 𝐴𝑒…”

“…Among them, the most representative one is (H 2 dabco)[NH 4 (ClO 4 ) 3 ] (DAP-4) among AP-based molecular perovskite energy materials [13][14][15] . DAP-4 has a crystal density of 1.87 g•cm -3 .…”

Porous MoS2 nanosheets for the fast decomposition of energetic compounds

“…The thermal decomposition of perovskite-type AP (denoted as DAP) has been attached to NMP assisted exfoliated 2H-MoS 2 nanosheets. 30–32 However, the 2H-MoS 2 preparation from NMP liquid-exfoliation was on the small scale, time inefficient and involved toxic components. In light of these findings, it is of great interest to investigate the preparation of 2H-MoS 2 on a large-scale, with low cost and green processes.…”