It is a powerful oxidizer. Corresponding Author. Furthermore, the catalytic effect of the obtained samples on the thermal decomposition of ammonium perchlorate (AP) was examined by thermal gravimetric analysis (TGA). Copyright © 2021 Elsevier B.V. or its licensors or contributors. ZnO and ZnS … By continuing you agree to the use of cookies. We use cookies to help provide and enhance our service and tailor content and ads. Good recovery of N and Cl was achieved. 165-177. Regimes of non-explosive mechanoactivation of ammonium perchlorate are found. Journal of Energetic Materials: Vol. Field emission scanning electron microscopy, differential scanning calorimetry and thermogravimetry analysis techniques were used to evaluate the coating quality and thermal … The thermal decomposition of ammonium perchlorate in the presence of potassium chloride and chromium (III) oxide was investigated using K 36 Cl and 51 Cr 2 O 3 to elucidate the reaction mechanism. Despite much research on various aspects of the thermal decomposition of ammonium perchlorate (see[1 7] and references therein), key aspects of the mechanism of the process remain controversial. This review represents an attempt to summarize literature data on thermal decomposition of ammonium perchlorate. g –1 for AP‐CuO‐S, AP‐CuO‐N, and AP‐CuO‐Cl, respectively. Ammonium perchlorate ("AP") is an inorganic compound with the formula NH 4 ClO 4. The thermal decomposition of ammonium perchlorate has been studied by measuring either the loss in weight, or the pressure increase in a closed system, as functions of time. Combined with a fuel, it can be used as a rocket propellant. Science and Technology on Combustion and Explosion Laboratory, Xi'an Modern Chemistry Research Institute, Xi'an, 710065 P. R. China . Present address: Avco-Everett Research Laboratory, Everett, Mass. One of these is the formation of a porous product upon low-temperature thermal decom-position of the orthorhombic phase. The effect of atmosphere composition on the rate of decomposition was studied. A … https://doi.org/10.1016/j.tca.2005.11.038. The products of decomposition were identified and the yield of each was established. TGA curves obtained under both isothermal and nonisothermal conditions show a characteristic slowdown at the extents of conversion, α = 0.30−0.35. Because of its use as a solid propellent and more generally in pyrotechnic systems, the thermal decomposition of ammonium perchlorate (AP) has been extensively studied. Adding 10% of NGO to AP decreases the decomposition temperature by 106 °C and increases the … The thermal decomposition of ammonium perchlorate 2NH 4 ClO 4 N 2 + Cl 2 + 2O 2 + 4H 2 O [ Check the balance ] The thermal decomposition of ammonium perchlorate to produce nitrogen, chlorine, oxygen and … The products of decomposition were identified and the yield of each was established. 31, No. Fengqi Zhao. Cr(OH)(3) nanoparticle preparation procedure and its catalytic effect and mechanism on thermal decomposition of ammonium perchlorate (AP) were investigated using transmission electron microscopy (TEM), X-ray diffraction (XRD), thermogravimetric analysis and differential scanning calorimetry (TG-DSC), X-ray photoelectron spectroscopy (XPS), and thermogravimetric analysis and … In this study, copper stearate (CS) was investigated as a potential catalyst for the thermal decomposition of ammonium perchlorate (AP). As a result, on the condition of 5 wt% TCN/CuO, the high decomposition temperature of AP was decreased by 120.6 °C, which is much lower than that of UCN, TCN, CuO and UCN/CuO. The breakdown of … ZnO nanocrystals as catalysts have been widely employed in the catalytic thermal decomposition of ammonium perchlorate (AP). Ammonium perchlorate (AP) is the universal oxidiser in use for all the solid rocket propellant motors used for space exploration due to its high available oxygen content and thermal decomposition without any solid residue. Catalytic Activity of Ferrates (NiFe 2 O 4, ZnFe 2 O 4 and CoFe 2 O 4) on the Thermal Decomposition of Ammonium Perchlorate Ming Zhang. Abstract The catalytic effect of copper tungsten oxide (CuWO4) was investigated on the thermal decomposition of ammonium perchlorate (AP) using differential scanning calorimetry. Copyright © 1968 Published by Elsevier Inc. https://doi.org/10.1016/0010-2180(68)90054-0. However, the catalytic mechanism is still controversial and the role of surface lattice oxygen is always ignored. The reaction mechanism … Copyright © 2021 Elsevier B.V. or its licensors or contributors. Production. catalyst to catalyze the thermal decomposition of ammonium perchlorate (AP). ScienceDirect ® is a registered trademark of Elsevier B.V. ScienceDirect ® is a registered trademark of Elsevier B.V. The mechanism of thermal decomposition and various factors which influence on the thermal decomposition of ammonium perchlorate are discussed. The effects of fullerenes, including fellerene soot (FS), extracted fullerene soot (EFS) and pure C60 on the thermal decomposition of ammonium perchlorate (AP) compared with traditional carbon black (CB) catalyst has been studied by employing thermogravimetry (TG), differential thermal analysis (DTA), infrared spectroscopy (IR) and ignition temperature experiments. Its instability has involved it in a number of accidents, such as the PEPCON disaster. Experimental results indicated that 1 possesses potential application prospects in the field of explosives and propellants. The mechanism of thermal decomposition and various factors which influence on the thermal decomposition of ammonium perchlorate are discussed. As an energetic accelerator for thermal decomposition of ammonium perchlorate (AP) and ammonium nitrate (AN), 10% nano TAGN blended with AP and AN, and samples “[90% AP + 10% (nano TAGN)]” and “[90% AN + 10% (nano TAGN)]” were obtained, respectively. Furthermore, CuO NPs were found to reduce the activation energy of AP decomposition. In addition, 1 was explored as combustion promoter to accelerate the thermal decompositions of ammonium perchlorate (AP) by differential scanning calorimetry. The catalytic effect of the NGO for the thermal decomposition of ammonium perchlorate (AP) was investigated by differential scanning calorimetry (DSC). • … The reaction mechanism proposed for the uncatalysed decomposition involves the adsorbed dissociation products NH3 and HClO4, self-protonation of HClO4 to yield the intermediate ClO3+, and oxidation of NH3 by ClO3+. Thermal Decomposition of Ammonium Perchlorate containing a polymeric additive Thermal Decomposition of Ammonium Perchlorate containing a polymeric additive Thomas, T. J.; Nandi, U. S. 1978-10-01 00:00:00 T. J. Thomas* and U. S. Nandi Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore - 560 012 (India) Thermische Zerseaung von … The effect of atmosphere composition on the rate of decomposition was studied. The effect of atmosphere composition on the rate of decomposition was studied. The thermal decomposition of ammonium perchlorate shows several unusual characteristics. Good recovery of N and Cl was achieved. The most striking of these is that at low temperatures it decomposes only to the extent of about 20 to 30 %, leaving a residue which is chemically identical with the original salt. Analysis of the former measurements is complicated by concurrent sublimation of the salt. However, the roles of energetic additives are unclear due to their complex changes in the decomposition process. X-ray diffraction (XRD), X-ray energy-dispersive spectrometry (EDS) and X-ray photoelectron spectros-copy (XPS) analyses showed that the characteristic peaks of CuO/ PbO NMOs were almost the superposition of nano CuO and nano PbO, while few new weak … • Thermal decomposition temperature decreases by more than 100 °C. Variations in lattice configuration of AP change … (2013). Thermal decomposition of ammonium perchlorate. It is a colorless or white solid that is soluble in water. Thermal decomposition of ammonium perchlorate. This review represents an attempt to summarize literature data on thermal decomposition of ammonium perchlorate. The obtained CuO/PbO NMOs were system-atically characterized. Good recovery of N and Cl was achieved. Differential scanning calorimetry (DSC) analyses were employed to investigate the decomposition kinetics and thermodynamics of the … In this research, the catalytic effects of nano-Co3O4 with diverse average particle sizes and specific surface area on thermal decomposition property of ammonium perchlorate (AP) particles were investigated. The thermal decomposition properties and the heat of combustion (ΔH) of samples with different ammonium perchlorate (AP)/double base propellant (DB) mass ratios under argon atmosphere were studied by the thermogravimetry–differential scanning calorimetry–mass spectrometry–Fourier transform infrared spectroscopy (TG–DSC–MS–FTIR) and automatic calorimeter method. By continuing you agree to the use of cookies. We use cookies to help provide and enhance our service and tailor content and ads. Nanoparticles of Transition Metals as Accelerants in the Thermal Decomposition of Ammonium Perchlorate, Part 62. The decomposition of ammonium perchlorate and ammonium perchlorate-copper chromite mixtures has been studied in the temperature range from 250°C to 325°C. Supporting Information. 3, pp. As an energetic accelerator for thermal decomposition of ammonium perchlorate (AP) and ammonium nitrate (AN), 10% nano TAGN blended with AP and AN, and samples “[90% AP + 10% (nano TAGN)]” and “[90% AN + 10% (nano TAGN)]” were obtained, respectively. Herein, a classical catalytic mechanism based on the surface lattice oxygen was proposed to reveal AP decomposition promoted by ZnO nanosheets. effect and mechanism on thermal decomposition of ammonium perchlorate (AP) were investigated using transmission electron microscopy (TEM), X-ray diffraction (XRD), thermogravimetric analysis and differential scanning calorimetry (TG-DSC), X-ray photoelectron spectroscopy (XPS), and thermogravimetric analysis and mass Search for more papers by this author. Copper stearate/ammonium perchlorate (CS/AP) shell–core composite was prepared by in situ synthesis and characterized to sample by SEM and EDS, it shows that CS is evenly dispersed on the surface of AP and forms a shell–core structure. The decomposition of ammonium perchlorate and ammonium perchlorate-copper chromite mixtures has been studied in the temperature range from 250°C to 325°C. The reaction mechanism proposed for the catalysed decomposition involves the formation of the free radicals NH4 and ClO4, decomposition of the radicals to NH3 and chlorine oxides, and subsequent oxidation of NH3. Copyright © 2005 Elsevier B.V. All rights reserved. The decomposition of ammonium perchlorate and ammonium perchlorate-copper chromite mixtures has been studied in the temperature range from 250°C to 325°C. The reaction mechanism … Two simultaneous routes are suggested for the decomposition. The inclusion of reactive species in AP directly affect the viscoelastic and ballistic properties of the propellant. XX with permission from the Centre National de la Recherche Scientifique (CNRS) and The Royal Society of Chemistry. Measurements of the sublimation rate have therefore been made over a wide temperature range and kinetic parameters both for … The methods of thermogravimetric analysis (TGA) and differential scanning calorimettry (DSC) have been used to study the thermal decomposition of ammonium perchlorate (AP). E-mail address: zhangm3210@163.com. Comparison of combustion behaviors of ammonium chlorate and perchlorate. The products of decomposition were identified and the yield of each was established. The heat effect of decomposition reaction of solid NH4ClO3to oxygen, gaseous water, and HCl (or chlorine) averages 42.5-49 kcal/mole or 419-482 cal/g depending on product composition. ScienceDirect ® is a registered trademark of Elsevier B.V. ScienceDirect ® is a registered trademark of Elsevier B.V. Thermal analysis demonstrated that the thermostability of 1 was up to 325 °C. 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