Mesoporous cauliflower-like CuO/Cu(OH)2 hierarchical structures as an excellent catalyst for ammonium perchlorate thermal decomposition

Tzvetkov, George; Spassov, Тony; Tsvetkov, Martin; Rangelova, Vesselina

doi:10.1016/j.matlet.2021.129534

Cited by 8 publications

(1 citation statement)

References 11 publications

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“…Many studies have found that the thermal decomposition of AP can be achieved significantly by mixing some transition-metal elements with AP, such as CuO, Fe 2 O 3 , Co 3 O 4 , and other transition-metal complexes. The transition-metal elements in these composites can promote the electron transfer during the thermal decomposition of AP and reduce the high-temperature thermal decomposition temperature value of AP. − However, these inorganic materials containing transition-metal elements are generally added to the composite propellant by physical mixing, so the mass transfer distance between the catalyst and AP is long during the propellant combustion, which will reduce the catalytic efficiency of the catalyst. Therefore, the catalytic efficiency of the catalyst can be greatly improved by directly coating the transition-metal-containing compound on the surface of the AP particles. ,, …”

Section: Introductionmentioning

confidence: 99%

Construction of Hydrophobic Ammonium Perchlorate with Synergistic Catalytic Effect Based on Supramolecular Self-Assembly for Synchronously Catalyzing the Thermal Decomposition of Ammonium Perchlorate and the Combustion of Aluminum

Xiao

Chen

2023

Langmuir

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Ammonium perchlorate (AP), as an important additive component of composite propellants, is critical to the combustion performance of propellants. Herein, AP@1H,1H,2H,2H-perfluorodecyltrichlorosilane (AP@PF) was prepared by establishing a tannic acid−iron ion (TA−Fe) supramolecular self-assembly layer on the AP surface and connecting the 1H,1H,2H,2H-perfluorodecyltrichlorosilane interfacial layer. Results demonstrate that TA−Fe and 1H,1H,2H,2H-perfluorodecyltrichlorosilane are uniformly bound to the surface layer of AP. AP@PF has a lower high-temperature thermal decomposition peak compared to AP. Meanwhile, the exothermic values of low-temperature thermal decomposition (338 J/g) and high-temperature thermal decomposition (597 J/g) of AP@PF are significantly higher than those of AP. In addition, AP@PF exhibits different surface interfacial properties, such as floating on the water surface and exhibiting a static contact angle of 105°on water. AP@PF shows almost no moisture absorption after aging in humid air for 30 days. The exothermic value of the mixture of AP@PF and aluminum powder (156 J/g) is significantly higher than that of the mixture of AP and aluminum (54 J/g), and the mixture of AP@PF and aluminum powder exhibits a higher calorific value and a stronger emission spectrum. Finally, the synergistic catalytic mechanism of AP@PF on the thermal decomposition of AP and the combustion of aluminum powder is also discussed.

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