Facile Fabrication of Cu‐doped Carbon Aerogels as Catalysts for the Thermal Decomposition of Ammonium Perchlorate

Abstract

We report a simple and effective method to produce copper-doped carbon aerogel (Cu-CA) using sodium alginate as a carbon precursor through ion crosslinking and high-temperature carbonization. Results indicate that Cualginate has a 3D scaffold structure with pores. The effect of using different metal salt mass ratios of Cu-CA on the catalytic thermal decomposition of AP is also investigated. The thermal decomposition temperature of AP decreases by 94.24 C, and the activation energy of the decomposition reaction is reduced by 45.7 kJ/mol. These results demonstrate that the composite exhibits superior catalytic performance compared with a single-component transition metal salt.

Preparation of a Chitosan-Lead Composite Carbon Aerogel and Its Catalytic Thermal Decomposition Performance on Ammonium Perchlorate

“…But the E a values for the mixtures of AP+10 wt % CS-Pb-3.5 were 98.9 ± 1.7 and 188.7 ± 1.5 kJ/mol. The activation energy data proves that the catalyst is implementable for AP catalysis. , …”

“…The EDS spectra of CS-Pb-3.5 in Figure d–f correspond to that in Figure c, which shows the presence of Pb, C, and O as well as the corresponding atomic ratios of 10.2, 76.6, and 13.2, which are uniformly distributed on the carbon aerogel material. Thus, Pb 2+ was successfully compounded on the carbon aerogel. − …”

“…The activation energy data proves that the catalyst is implementable for AP catalysis. 23,40 Table 1 shows the dynamical parameters for the thermal decomposition of AP catalyzed by CS-Pb-3.5. It is clear that the catalyst has a limited ability to degrade the lowtemperature decomposition peak of AP, the reduction value is within 10 K, and the change in activation energy in the lowtemperature phase is also very weak.…”

Synthesis and properties of borane‐containing ionic liquids based on biferrocene

“…From Figure 9a to speed up the reaction. [38] Our previous research on the electrochemical properties of ionic liquids demonstrated that [Fcmim][I] exhibits the strongest electron loss ability of the imidazolyl ionic liquids so that it had the strongest effect on the decomposition of AP. Compared with the imidazolyl ionic liquids, it was found that the catalytic effect of the benzimidazolyl ionic liquids on the thermal decomposition of AP was significantly better than that of the imidazolyl ionic liquids.…”

Zeolite Imidazolate Frameworks-67 Precursor to Fabricate a Highly Active Cobalt-Embedded N-Doped Porous Graphitized Carbon Catalyst for the Thermal Decomposition of Ammonium Perchlorate

“…Moreover, the thermal decomposition ability of AP can significantly affect the combustibility of CSPs . In general, lowering the high-temperature decomposition (HTD) temperature and increasing the heat release of AP can achieve an increase of the combustion rate, high specific impulse, and low-pressure exponent of CSPs. , To improve the combustion performance of CSPs, the catalytic thermal decomposition of AP was extensively studied using the catalytic activities of metals, , transition-metal oxides (TMOs), − and composite catalysts. − However, most of the work focuses only on reducing the HTD temperature ignoring the heat release of AP. Considering that the heat release of AP can also significantly influence the combustibility of CSPs, there is an urgent need to develop a catalyst that can reduce the HTD temperature and increase the heat release of AP.…”