Preparation and characterization of ultrafine Fe-O compound/ammonium perchlorate nanocomposites via in-suit growth method

Ge, Zhen; Li, Xin; Zhang, Wenguo; Sun, Qili; Chai, Chunpeng; Luo, Yunjun

doi:10.1016/j.jssc.2017.10.012

Cited by 24 publications

(9 citation statements)

References 38 publications

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“…According to the FTIR spectrum of CuCr 2 O 4 /AP-1, there are four obvious infrared absorption peaks, which are consistent with the infrared absorption peaks of ultrafine AP. The stretching vibration absorption peaks of NH 4 + are around 3277 and 1409 cm –1 , and the stretching vibration absorption peaks of ClO 4 – are around 1037 and 615 cm –1 . In addition, compared with the ultrafine AP, a new infrared absorption peak appears near 780 cm –1 .…”

Section: Results and Discussionmentioning

confidence: 92%

“…The stretching vibration absorption peaks of NH 4 + are around 3277 and 1409 cm −1 , and the stretching vibration absorption peaks of ClO 4 − are around 1037 and 615 cm −1 . 19 In addition, compared with the ultrafine AP, a new infrared absorption peak appears near 780 cm −1 . Compared with the FTIR image of nano-CuCr 2 O 4 , the new infrared absorption peak is the stretching vibration absorption peak of chromate group (Cr 2 O 4 2− ), indicating that nano-CuCr 2 O 4 is compounded on the surface of the ultrafine AP.…”

Section: Resultsmentioning

confidence: 98%

“…It shows that in the process of preparing nano-CuCr 2 O 4 /ultrafine AP composites, the ultrafine AP does not participate in the reaction, and the crystal form of ultrafine AP does not change, only physical and mechanical composites occur. However, the characteristic peaks of nano-CuCr 2 O 4 are not found in the XRD spectrum of nano-CuCr 2 O 4 /ultrafine AP composites, which are mainly because the intensity of the characteristic diffraction peaks of ultrafine AP is too large, and the content of nano-CuCr 2 O 4 is too small to reach the detection range . Therefore, the XRD pattern of nano-CuCr 2 O 4 is not listed in the figure to compare with that of CuCr 2 O 4 /AP-1.…”

Section: Results and Discussionmentioning

confidence: 99%

“…However, the characteristic peaks of nano-CuCr 2 O 4 are not found in the XRD spectrum of nano-CuCr 2 O 4 /ultrafine AP composites, which are mainly because the intensity of the characteristic diffraction peaks of ultrafine AP is too large, and the content of nano-CuCr 2 O 4 is too small to reach the detection range. 19 Therefore, the XRD pattern of nano-CuCr 2 O 4 is not listed in the figure to compare with that of CuCr 2 O 4 /AP-1.…”

Section: Resultsmentioning

confidence: 99%

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Significantly Enhanced Thermal Decomposition of Mechanically Activated Ammonium Perchlorate Coupling with Nano Copper Chromite

Zhang

et al. 2021

ACS Omega

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In this article, nano-CuCr 2 O 4 (copper chromite)/ ultrafine ammonium perchlorate (AP) composites were prepared by a ultrasonic dispersion method and a mechanical grinding method. A series of nano-CuCr 2 O 4 /ultrafine AP composites with different dispersions were prepared by controlling the compounding time to study the best catalytic effect of nano-CuCr 2 O 4 on the ultrafine AP. The microstructures, surface elements, and morphologies of samples were analyzed by X-ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy, and energy dispersion X-ray spectroscopy. The catalytic effect of nano-CuCr 2 O 4 on the thermal decomposition of AP was investigated by differential scanning calorimetric techniques and thermogravimetric analysis. The results indicated that the mechanical ball milling method could make nano-CuCr 2 O 4 more evenly dispersed on the ultrafine AP, and with the increase in the milling time, the uniformity of nano-CuCr 2 O 4 on the ultrafine AP was better. When the milling time was 6−12 h, nano-CuCr 2 O 4 was most evenly dispersed on the ultrafine AP. At this time, the decomposition temperature and Gibbs free energy of the nano-CuCr 2 O 4 /ultrafine AP composite were the lowest, which decreased by 78.1 °C and 25.16 kJ/mol compared with those of ultrafine AP, respectively. Moreover, the mechanical sensitivity of nano-CuCr 2 O 4 /ultrafine AP composites was lower than that of ultrafine AP. It showed that ball milling for 6−12 h could make nano-CuCr 2 O 4 evenly dispersed on the ultrafine AP, and nano-CuCr 2 O 4 could play the best catalytic effect on the ultrafine AP.

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Section: Results and Discussionmentioning

confidence: 92%

Section: Resultsmentioning

confidence: 98%

Section: Results and Discussionmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

See 2 more Smart Citations

Significantly Enhanced Thermal Decomposition of Mechanically Activated Ammonium Perchlorate Coupling with Nano Copper Chromite

Zhang

et al. 2021

ACS Omega

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“…[1] Currently, nanotransition metal oxides were used as typical combustion catalysts, which could effectively improve the decomposition efficiency of AP. Those nano-transition metal oxides mostly Fe 2 O 3 , [6,7] CuO, [8][9][10] MnO 2 , [11] ZnO, [12] NiO, [13] Co 3 O 4 , [14] etc, accel-erated the electron transfer on the AP surface by providing abundant electron transfer orbitals during the cycling of the catalytic AP pyrolysis reaction. [10,15] Among these nano-transition metal oxides, n-CuO was one of the most effective catalysts for AP thermal decomposition.…”

Section: Introductionmentioning

confidence: 99%

New Insights into the Catalytic Decomposition of Ammonium Perchlorate and Decomposition Mechanism by Nano‐CuO Dispersed in Graphite‐Carbon Nitride Nanosheet Composites

Shi

Chang-sheng

et al. 2022

ChemNanoMat

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Enhancing the exothermic decomposition of ammonium perchlorate (AP) is of great significance to obtain solid propellants with excellent combustion performance. Herein, we prepared a series of composites for catalyzing the exothermic decomposition of AP by a facile method with different masses of nano copper oxide (n-CuO) dispersed in graphene-nitride carbon (g-C 3 N 4 ) nanosheets. Among them, n-CuO-8/g-C 3 N 4 showed the best catalytic activity, which reduced the high-temperature decomposition (HTD) value by 95.0 °C, and increased the total heat release by 505 J • g À 1 . The n-CuO-12/g-C 3 N 4 also reduced the activation energy (E a ) of the HTD stage by 47.34 kJ • mol À 1 . The catalytic mechanism study suggested that the n-CuO-X/g-C 3 N 4 composites promoted the transition of electrons (e À ) and holes (h + ) from ClO 4À to NH 4 + and inhibited the recombination of e À and h + , which further enhanced the exothermic decomposition of AP. During decomposition, the transformation of N 2 O to NO was significantly inhibited by the n-CuO-X/g-C 3 N 4 composites, thus increasing the integral heat release as evidenced by Real-time thermogravimetry/Fourier transform infrared spectroscopy. This study illustrated that n-CuO-X/g-C 3 N 4 composites are catalysts for the efficient decomposition of AP, which further enhance the energy performance of solid propellants.

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Energetic transition metal complexes based on 1‐allylimidazole and nitrocyanamide: Syntheses, characterizations and catalytic performances on the thermal decomposition of ammonium perchlorate

Yuan,

Huang,

et al. 2024

Propellants Explo Pyrotec

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To explore combustion catalysts for solid propellants, four novel energetic coordination compounds were prepared with the anion of nitrocyanamide (NCA) as the ligand and 1‐allyl‐imidazole (AIM) as the ligand, and transition metals Mn, Co, Ni, and Cu as the central ions. The structures of these compounds were [Mn(AIM)4] (NCA)2 (1), [Co(AIM)4](NCA)2 (2), [Ni(AIM)4](NCA)2 (3), [Cu(AIM)4](NCA)2 (4). The results showed that all of the compounds possessed high energy density, and compound 2 had a mass energy density (Eg) of 17.9 kJ g−1 and a volume energy density (Ev) of 25.59 kJ cm−3. The catalytic effect of these compounds on the thermal decomposition of ammonium perchlorate (AP) was studied using DSC. The addition of 5 % catalyst to AP samples advanced the high‐temperature decomposition temperature and significantly increased the heat release. Compound 4 exhibited the best catalytic performance, with an increased heat release of 1739 J g−1, decomposition temperature advanced by 88.2 °C, and activation energy reduced to 74.74 kJ mol−1. These results demonstrate the potential of these compounds as combustion catalysts for solid propellants.

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Preparation and characterization of ultrafine Fe-O compound/ammonium perchlorate nanocomposites via in-suit growth method

Cited by 24 publications

References 38 publications

Significantly Enhanced Thermal Decomposition of Mechanically Activated Ammonium Perchlorate Coupling with Nano Copper Chromite

Significantly Enhanced Thermal Decomposition of Mechanically Activated Ammonium Perchlorate Coupling with Nano Copper Chromite

New Insights into the Catalytic Decomposition of Ammonium Perchlorate and Decomposition Mechanism by Nano‐CuO Dispersed in Graphite‐Carbon Nitride Nanosheet Composites

Energetic transition metal complexes based on 1‐allylimidazole and nitrocyanamide: Syntheses, characterizations and catalytic performances on the thermal decomposition of ammonium perchlorate

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