Textural analysis of aluminum hydride

Preparation and Properties of Pyrotechnic Binder Encapsulated α‐AlH3 Composites by Solvent/Anti‐solvent Method

“…As shown in Figure 2a, the α‐AlH 3 raw material showed characteristic peaks in 27.63°, 38.42°, 40.15°, 46.20°, 49.65°, 57.15°, 63.40°, 66.30°, 67.90°, 72.56°, 73.60°, 82.30°, 86.30°, and 87.90° (JCPDS No. 23‐0761), which could be corresponded to (012), (104), (110), (006), (202), (024), (116), (122), (018), (214), (300), (208), (1010), and (220) crystal faces, consistent with the report in the literature [32] . The XRD patterns of the samples coated by the solvent/anti‐solvent method were similar to those of α‐AlH 3 , with only the characteristic peaks at 82.30°, 86.30° and 87.90° diminished, indicating that the shellac, phenolic resin and viton did not lead to changes in the α‐AlH 3 physical phase structure.…”

“…23-0761), which could be corresponded to (012), (104), (110), (006), (202), (024), (116), (122), (018), (214), (300), (208), (1010), and (220) crystal faces, consistent with the report in the literature. [32] The XRD patterns of the samples coated by the solvent/antisolvent method were similar to those of α-AlH 3 , with only the characteristic peaks at 82.30°, 86.30°and 87.90°diminished, indicating that the shellac, phenolic resin and viton did not lead to changes in the α-AlH 3 physical phase structure. In addition, a bulge peak was observed at 15-20°for Viton-coated α-AlH 3 composites, confirming the presence of viton.…”

Microstructure and interaction in aluminum hydrides@polydopamine composites and interfacial improvement with GAP adhesive

“…Figure 5 c illustrates the changes that occur during heating for pristine AlH 3 and PDA-treated AlH 3 . An endothermic peak of pristine AlH 3 was observed at 181.6 °C, which is in accordance with the endothermic reaction being attributed to the dehydriding of AlH 3 32 , 33 . With PDA coating, the transition temperature slightly increased to 185.6 °C.…”

“…Aluminum trihydride (AlH 3 ) has also been taken into account as an ideal solid propellant fuel due to its high theoretical hydrogen storage capacity, its gravimetric and volumetric hydrogen capacities are 10.1% and 0.148 g/mL, respectively, which is twice as much as the value of liquid hydrogen (70.08 g/L). Compared with aluminum powder, it also has a higher calorific value of combustion 1 , 2 . However, aluminum trihydride is composed of two atoms with strong reduction, hence it has poor stability and is spontaneous decomposition in long-term storage at room temperature and the temperature range of solid propellant processing.…”

Constructing α-AlH3@polymer composites with high safety and excellent stability properties via in situ polymerization

“…71-2421). 44,45 The position of the diffraction peak of the α-AlH 3 @polymer composites was the same as the characteristic diffraction peak of α-AlH 3 . The main structure of the obtained composites was still α-AlH 3 after in situ polymerization.…”