Effects of magnesium-based hydrogen storage materials on the thermal decomposition, burning rate, and explosive heat of ammonium perchlorate-based composite solid propellant

Liu, Leili; Li, Jie; Zhang, Lingyao; Tian, Siyu

doi:10.1016/j.jhazmat.2017.08.055

Cited by 69 publications

(21 citation statements)

References 16 publications

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“…For CuO, MoS 2 and 50%‐CuO/MoS 2 composite as catalysts for AP decomposition, the first stage that the phase transition of AP from orthorhombic to cubic form at 247.4 °C was not affected, which was also observed in other catalysts . However, for the AP decomposition at high temperature, MoS 2 showed an unsatisfactory performance in the decomposition temperature and heat release (405.3 °C and 416 J/g) when compared with CuO (345.5 °C and 1046 J/g), indicating MoS 2 itself was not appropriate to catalyze AP decomposition while CuO was a relative efficient catalyst.…”

Section: Resultsmentioning

confidence: 79%

Enhanced Thermal Decomposition Properties and Catalytic Mechanism of Ammonium Perchlorate over CuO/MoS₂ Composite

Yang

Fan

et al. 2019

Applied Organom Chemis

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In this report, CuO/MoS2 composites were successfully prepared by the hydrothermal method where nano‐sized CuO was uniformly distributed on the surface of hierarchical MoS2 substrates (CuO/MoS2 composites). Their physicochemical properties and catalytic performance in ammonium perchlorate (AP) decomposition were investigated and characterized by XRD, SEM, TEM, BET, XPS, TG/DSC and combustion measurement. The results showed that it could decrease AP decomposition temperature at high decomposition stage from 416.5 °C to 323.5 °C and increase the heat release from 378 J/g (pure AP) to 1340 J/g (AP with catalysts), which was better than pure CuO nanoparticles (345.5 °C and 1046 J/g). Meanwhile, it showed excellent performance in combustion reaction either in N2 or air atmosphere. The results obtained by photocurrent spectra, photoluminescence spectra and time‐resolved fluorescence emission spectra indicated that loading CuO mediated the generation rate and combination rate of electrons and holes, thus tuning the catalytic performance on AP decomposition. This study proved that employing the supports that can synergistically interact with CuO is an efficient strategy to enhance the catalytic performance of CuO.

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Section: Resultsmentioning

confidence: 79%

Enhanced Thermal Decomposition Properties and Catalytic Mechanism of Ammonium Perchlorate over CuO/MoS₂ Composite

Yang

Fan

et al. 2019

Applied Organom Chemis

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“…Magnesium (Mg) and Mg‐based alloys have attracted considerable research attention as solid‐state H 2 storage materials because they possess high H 2 storage capacity. Pure Mg, which has a theoretical H 2 storage capacity of 7.6%, can absorb H 2 to form hydride (MgH 2 ) and reversibly desorb H 2 at low temperatures and pressures 2–4 . Industrial‐scale MgH 2 ‐based H 2 storage facilities with a hydrogenation capacity of 550 kg/day have been realized in Shandong Province, China, for use in public transportation 5…”

Section: Introductionmentioning

confidence: 99%

Dust cloud explosion characteristics and mechanisms in MgH₂‐based hydrogen storage materials

et al. 2021

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The mechanisms involved in premixed magnesium and hydrogen hybrid and synthetic MgH2 dust cloud explosions were investigated. The results revealed that trace amounts of H2 in Mg explosions can markedly increase explosion severity. Furthermore, H2 addition can weaken the influence of oxygen deficiency on Mg explosion. Moreover, the explosion intensity of synthetic MgH2 was far stronger than that of premixed Mg/H2 mixture or Mg alone because the vacancy defects in Mg and H atoms can form after dehydrogenation of MgH2, which caused that Mg and H2 are prone to oxidation and nitrification in air atmosphere at a low temperature, thereby promoting the explosion. This demonstrates that the explosion risk of MgH2 (even other H2 storage materials) is related to its H2 storage capacity and dehydrogenation temperature. Therefore, for H2 storage materials, the better H2 storage performances can exhibit higher explosion risks.

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“…Generally, two separated steps are assumed for the thermal decomposition of AP [9]. At first, an endothermic process of a phase transition (PT) of NH 4 ClO 4 from orthorhombic to cubic is observed.…”

Section: Introductionmentioning

confidence: 99%

“…At first, an endothermic process of a phase transition (PT) of NH 4 ClO 4 from orthorhombic to cubic is observed. Immediately after this step, the thermal decomposition of AP is controlled by two distinguished exothermic pathways which are known as low temperature decomposition (LTD) and high temperature decomposition (HTD) [10]. Although attempts to understand the mechanism of thermal decomposition of AP have been subject of several studies, it still remains a matter of debate [11].…”

Section: Introductionmentioning

confidence: 99%

Organic Based Additives Impact on Thermal Behavior of Ammonium Perchlorate: Superior 4, 4′‐Bipyridine Versus Inferior Biphenyl

Salehi

Eslami

2021

Propellants Explo Pyrotec

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For the first time, the thermal decomposition behavior of heterogeneous mixtures of ammonium perchlorate (AP) with two organic additives – 4, 4’‐Bipyridine, and biphenyl – were investigated. The heterogeneous mixtures of the additives and ammonium perchlorate were prepared by dissolving 1, 2, 3, 4, and 5 mg of the organic additives and 100 mg ammonium perchlorate in 2 ml of methanol as solvent. After that, the thermal decomposition behavior of prepared solid heterogeneous mixtures was monitored by thermogravimetry analysis, differential scanning calorimetry, and mass spectrometry analysis. The effect of the 4, 4’‐Bipyridine on thermal decomposition of AP enhanced the released heat from 479 to 1842 J g−1 and produced a decrease of decomposition temperature from 433 °C to 308 °C while the thermal decomposition of AP in the presence of biphenyl did not change as dramatically as it did with 4, 4’‐Bipyridine. With biphenyl, the decomposition temperature was found to be similar to that of pure AP and the evolved heat was about 718 J g−1. The gaseous products of decomposition of 4, 4’‐Bipyridine /ammonium perchlorate were monitored by mass spectrometric analysis. The main evolved decomposition gases of pure AP are N2O, O2, Cl2, ClO, ClO2, ClO3, HClO4, and HCl, while the major gaseous products of the 5:100 (w/w) mixture of 4, 4’‐Bipyridine with AP were detected as N2, NO, N2O, O2, Cl2, ClO, ClO2, ClO3, HClO4, HCl and 4, 4’‐Bipyridine. The change in the composition of volatile products indicates a change in the mechanism of AP decomposition from proton transfer to electron transfer in the presence of 4, 4’‐Bipyridine.

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Effects of magnesium-based hydrogen storage materials on the thermal decomposition, burning rate, and explosive heat of ammonium perchlorate-based composite solid propellant

Cited by 69 publications

References 16 publications

Enhanced Thermal Decomposition Properties and Catalytic Mechanism of Ammonium Perchlorate over CuO/MoS₂ Composite

Enhanced Thermal Decomposition Properties and Catalytic Mechanism of Ammonium Perchlorate over CuO/MoS₂ Composite

Dust cloud explosion characteristics and mechanisms in MgH₂‐based hydrogen storage materials

Organic Based Additives Impact on Thermal Behavior of Ammonium Perchlorate: Superior 4, 4′‐Bipyridine Versus Inferior Biphenyl

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Effects of magnesium-based hydrogen storage materials on the thermal decomposition, burning rate, and explosive heat of ammonium perchlorate-based composite solid propellant

Cited by 69 publications

References 16 publications

Enhanced Thermal Decomposition Properties and Catalytic Mechanism of Ammonium Perchlorate over CuO/MoS2 Composite

Enhanced Thermal Decomposition Properties and Catalytic Mechanism of Ammonium Perchlorate over CuO/MoS2 Composite

Dust cloud explosion characteristics and mechanisms in MgH2‐based hydrogen storage materials

Organic Based Additives Impact on Thermal Behavior of Ammonium Perchlorate: Superior 4, 4′‐Bipyridine Versus Inferior Biphenyl

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Enhanced Thermal Decomposition Properties and Catalytic Mechanism of Ammonium Perchlorate over CuO/MoS₂ Composite

Enhanced Thermal Decomposition Properties and Catalytic Mechanism of Ammonium Perchlorate over CuO/MoS₂ Composite

Dust cloud explosion characteristics and mechanisms in MgH₂‐based hydrogen storage materials