Iron/aluminum nanocomposites prepared by one-step reduction method and their effects on thermal decomposition of AP and AN

Kou, Yong; Wang, Yi; Zhang, Jun; Guo, Kaige; Song, Xiaolan

doi:10.1016/j.dt.2021.11.008

Cited by 18 publications

(31 citation statements)

References 27 publications

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“…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. , …”

Section: Resultsmentioning

confidence: 68%

“…Figure d,e shows the microscopic morphology of GO/CuO and CMGO/CuO composites, and nano-CuO is well loaded on GO and CMGO. The good dispersion of nano-CuO on the surface of CMGO facilitates the synergistic catalysis between CMGO and CuO. , …”

Section: Resultsmentioning

confidence: 99%

“…In recent decades, transition metals and transition-metal oxides have been widely used to accelerate the thermal decomposition of AP due to their good catalytic performance. − Among the transition-metal oxides, CuO has attracted considerable attention due to its good catalytic activity, chemical stability, and environmental friendliness. − The morphology and structure of CuO are also the key factors affecting its catalytic performance. For example, CuO nanoparticles can improve the catalytic performance of AP due to its larger specific surface area and more catalytic active sites. , However, as said “every coin has two sides”, nano-CuO also has fatal defects even if it has excellent catalytic properties on AP.…”

Section: Introductionmentioning

confidence: 99%

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

Shao

et al. 2023

ACS Omega

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In this study, a new covalently modified energetic graphene oxide (CMGO) was synthesized by introducing the energetic component 4-amino-1,2,4-triazole on GO sheets through valence bond bonding. The morphology and structure of CMGO were studied by scanning electron microscopy, energy-dispersive spectroscopy, Fourier transform infrared spectroscopy, Raman spectroscopy, X-ray diffractometry, and X-ray photoelectron spectroscopy, and the results showed that CMGO was successfully synthesized. Then, CMGO/CuO was prepared by loading nano-CuO onto CMGO sheets using an ultrasonic dispersion method. Furthermore, the catalytic effect of CMGO/CuO on the thermal decomposition of ammonium perchlorate (AP) was investigated using differential scanning calorimetric technique and thermogravimetric analysis. The results revealed that the high decomposition temperature T H and Gibbs free energy ΔG ⧧ of the CMGO/CuO/ AP composite decreased by 93.9 °C and 15.3 kJ/mol compared with those of raw AP, respectively. The CMGO/CuO composite exhibited more significant catalytic effect on the thermal decomposition of AP than GO/CuO, and the heat release Q of CMGO/ CuO/AP was greatly increased from 132.9 to 1428.5 J/g with 5 wt % CMGO/CuO. The above results demonstrated that CMGO/ CuO is an excellent composite energetic combustion catalyst, which is expected to be widely used in composite propellants.

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Section: Resultsmentioning

confidence: 68%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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

Shao

et al. 2023

ACS Omega

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“…These findings demonstrate the limitations of XRD in evaluating the dispersity of nanomaterials in energetic materials and illustrate the need to develop new techniques for evaluating the dispersion of nanomaterials. 1,8,22,41…”

Section: Resultsmentioning

confidence: 99%

The positive correlation between the dispersion and catalytic performance of Fe₂O₃ nanoparticles in nano-Fe₂O₃–ultrafine AP energetic composites supported by solid UV-vis spectroscopy

Kou,

Luo,

Xiao

et al. 2023

Dalton Trans.

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“…Ammonium perchlorate (AP, NH 4 ClO 4 ) is a commonly used oxidizer for composite solid propellants (CSPs), , and its thermal decomposition characteristic is closely related to the propellant combustion performance . Therefore, the thermal decomposition characteristic of AP was widely studied. − There are two stages for AP thermal decomposition, , namely, low-temperature decomposition (LTD, <350 °C) and high-temperature decomposition (HTD, >350 °C). In the LTD stage, the main decomposition products of AP are ammonia (NH 3 ) and perchloric acid (HClO 4 ).…”

Section: Introductionmentioning

confidence: 99%

Mechanism of Interaction between Ammonium Perchlorate and Aluminum

Yan,

Xu,

Nie

et al. 2023

J. Phys. Chem. A

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There is an interactive effect between ammonium perchlorate (AP) and aluminum (Al) powder during the combustion process of composite solid propellants, but the mechanism of this effect is still lacking. Using quantum chemical methods, we investigated this mechanism from a molecular perspective. The interaction process between Al and AP was analyzed by comparing the chemical bond changes between the atoms during the reaction process of the Al/AP system and the AP unimolecular thermal decomposition system. The results show that Al atoms alter the reaction mechanism of AP thermal decomposition, significantly decreasing the activation energy of AP decomposition at high temperature but increasing that at low temperature. Meanwhile, the temperature-dependent rate constant of each basic reaction was calculated by transition state theory. The rate constants increase with temperature. Under high temperature and pressure, Al can increase the high-temperature decomposition rate of AP by up to 1–3 orders of magnitude.

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Iron/aluminum nanocomposites prepared by one-step reduction method and their effects on thermal decomposition of AP and AN

Cited by 18 publications

References 27 publications

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

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

The positive correlation between the dispersion and catalytic performance of Fe₂O₃ nanoparticles in nano-Fe₂O₃–ultrafine AP energetic composites supported by solid UV-vis spectroscopy

Mechanism of Interaction between Ammonium Perchlorate and Aluminum

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Iron/aluminum nanocomposites prepared by one-step reduction method and their effects on thermal decomposition of AP and AN

Cited by 18 publications

References 27 publications

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

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

The positive correlation between the dispersion and catalytic performance of Fe2O3 nanoparticles in nano-Fe2O3–ultrafine AP energetic composites supported by solid UV-vis spectroscopy

Mechanism of Interaction between Ammonium Perchlorate and Aluminum

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The positive correlation between the dispersion and catalytic performance of Fe₂O₃ nanoparticles in nano-Fe₂O₃–ultrafine AP energetic composites supported by solid UV-vis spectroscopy