New insights in nano-copper chromite catalyzing ultrafine AP: Evaluation of dispersity and mixing uniformity

Synthesis of Covalently Modified Energetic Graphene Oxide/CuO Composites with Enhanced Catalytic Performance for Thermal Decomposition of Ammonium Perchlorate

“…In addition, it can also be found that the T p0 values of CuO/AP (300.6 °C), GO/CuO/AP (301.8 °C), and CMGO/CuO/AP (299.2 °C) are significantly advanced, especially the CMGO/CuO/AP composite. The above phenomenon fully demonstrates the more obvious catalytic performance of CMGO/CuO on AP …”

“…It can also be found that the distribution of different elements in CMGO/CuO is denser than that of GO/CuO, especially the Cu element. The above conclusions demonstrate that CuO nanoparticles can be better combined with CMGO, resulting in a more uniform dispersion of nano-CuO on CMGO, which is related to the ATA on the surface of GO. , …”

“…Nowadays, improving the energy output of solid propellants is one of the tasks that need to seek breakthroughs in the research and application, and it is an effective way to introduce combustion catalysts with energetic components into the propellant. − This is due to the ability of energetic combustion catalysts to modulate the combustion performance of the propellant and to increase its energy output. Moreover, some studies have shown that adding about 3 wt % energetic combustion catalysts into the propellant can improve the specific impulse of the system by 1–3 s, which greatly compensates for the energy loss caused by the introduction of inert combustion catalysts. , The GO sheets contained many oxygen-containing functional groups (such as hydroxyl and carboxyl groups), which provides the possibility to carry out many functional modifications such as esterification and amidation. − Hostert obtained the imidazole (IMZ)-functionalized GO (GOIMZ) by modifying 1-(3-aminopropyl) imidazole (API) on the GO surface via an amide bond, using 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide (EDC) and N -hydroxysuccinimide (NHS) for activating the carboxylate sites of GO.…”

Correlation of Efficient Dispersion and Catalytic Performance of Nanocombustion Catalysts in Energetic Materials: A Case Study of the Nanocopper Oxide Catalyst with Superfine Ammonium Perchlorate

“…It is required to increase the burning rate and thrust of the propellants to meet the capabilities of precision guidance, long-range strike, and efficient destruction for the weapon system. At present, various solutions for improving the burning rate of solid propellants have been used, such as the application of nano-oxidants, high-energy oxidants, and so on. − The above methods could significantly improve the burning rate and specific impulse of propellants but they also have fatal flaws, such as easy agglomeration and poor safety. Furthermore, nanocatalysts have been a hotspot in propellant formulation due to their excellent properties, such as increasing the burn rate, reducing the burn pressure index and characteristic signal, etc. − As a commonly used oxidant, ammonium perchlorate (AP) directly affects the performance of propellants as its content in many types of propellants up to 60–90%, such as composite propellants, composite modified double base propellants, etc. ,− …”

Electrochemical Synthesis of the Energetic Combustion Catalyst Co(BODN)·9H2O and Its Catalytic Effect on Ammonium Perchlorate Thermal Decomposition

“…These catalysts are used as ballistic modifiers to modify the ballistic properties of propellants. For example, metals or alloys (Al, Ni, Cu, and NiCu , ), transition-metal oxides (ZnO, CuO, TiO 2 , MnO 2 , Fe 2 O 3 , and Co 3 O 4 ), composite metal oxides (ZnCo 2 O 4 , MnFe 2 O 4 , CoCuNiFe 2 O 4 , NiCuZnCo 2 O 4 and CuZnCo 2 O 4 , NiZnFe 2 O 4 , and CuCr 2 O 4 , ), composite metal hydride, metal salts (copper alginate and cobalt alginate) and metal composites (BCC/rGO (barium–copper–cobalt oxide, rGO = graphene oxide), and BZC/rGO (BZC = BaZnCuO 3 and rGO = graphene oxide)) have been studied for their catalytic effect in the decomposition process of AP. These catalysts can effectively reduce the high-temperature decomposition (HTD) temperature of AP.…”