Effect of nanostructured foamed porous copper on the thermal decomposition of ammonium perchlorate

Wang, Chengling; Zhang, Hebing; Ye, Yinghua; Shen, Ruiqi; Hu, Yan

doi:10.1016/j.tca.2013.06.035

Cited by 19 publications

(11 citation statements)

References 15 publications

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“…The combustion behavior of propellants is highly relevant to the thermal decomposition process of AP. The ballistics of a composite propellant can be improved by addition of a catalyst, such as metal oxides (Li et al, 2008;Wang et al, 2005) and metal nanoparticles (Wang et al, 2013). A previous study (Liu et al, 2004) reported that nanoscale metals (for instance Ni, Cu, Al and NiCu powders) improved significantly the AP decomposition efficiency, and these nanoscale metals were oxidized into the corresponding metal oxides by the oxidizing gases O 2 , NO and N 2 O released during AP decomposition.…”

Section: Introductionmentioning

confidence: 99%

Noncrystalline structure of Ni–P nanoparticles prepared by liquid pulse discharge

Tan

et al. 2015

J Synchrotron Radiat

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Noncrystalline nickel phosphide (Ni-P) nanoparticles have drawn great attention due to their high potential as catalysts. However, the structure of noncrystalline Ni-P nanoparticles is still unknown, which may shed light on explaining the catalysis mechanism of the Ni-P nanoparticles. In this paper, noncrystalline Ni-P nanoparticles were synthesized. Their morphology, particle size, element contents, local atomic structures, as well as the catalysis in the thermal decomposition of ammonium perchlorate were studied. The results demonstrate that the as-prepared Ni-P nanoparticles are spherical with an average diameter of about 13.5 nm. The Ni and P contents are, respectively, 78.15% and 21.85%. The noncrystalline nature of the as-prepared Ni-P nanoparticles can be attributed to cross-linkage between P-doping f.c.c.-like Ni centers and Ni3P-like P centers. The locally ordered Ni centers and P centers are the nuclei sites, which can explain well the origin of initial nuclei to form the crystalline phases after high-temperature annealing. The starting temperature of high-temperature decomposition of ammonium perchlorate was found having a significant decrease in the presence of the noncrystalline Ni-P nanoparticles. Therefore, the as-prepared noncrystalline Ni-P nanoparticles can be used as a potential catalyst in the thermal decomposition of ammonium perchlorate.

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Section: Introductionmentioning

confidence: 99%

Noncrystalline structure of Ni–P nanoparticles prepared by liquid pulse discharge

Tan

et al. 2015

J Synchrotron Radiat

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“…According to DSC curve of pure AP in Fig.4a, the first peak at 240.7°C is an endothermic peak, which is associated with a phase transition of AP from orthorhombic to cubic. The other two exothermic peaks at 298.5°C and 420.6°C were corresponded to the low-temperature decomposition (LTD) and high-temperature decomposition (HTD) processes respectively [27]. It can be found that adding catalysts to AP has little influence on the phase transition and LTD processes, but the HTD peak temperature evidently decreases with the addition of catalysts.…”

Section: Under Typical Reaction Condition (6 Mmol Cu(no 3 ) 2 •3h 2 Omentioning

confidence: 95%

Controllable Synthesis and Catalytic Property of Novel Copper Oxides (CuO and Cu<sub>2</sub>O) Nanostructures

Wei

Xu²,

Huang

2016

IJMSA

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Copper oxides (CuO and Cu 2 O) semiconductor micro-and nanostructures have been selectively synthesized using cupric nitrate trihydrate (Cu(NO 3) 2 •3H 2 O), potassium biphthalate (KHC 8 H 4 O 4) and sodium hydroxide (NaOH) as starting materials in water solution by a simple hydrothermal method. The phase and morphology of the products could be controlled by changing the amount of sodium hydroxide and sodium potassium biphthalate. X-ray diffraction (XRD), field scanning electron microscopy (SEM) and Raman spectra (Raman) were used to characterize the products. It was found that oval-shaped CuO, CuO nanoplates and octahedral Cu 2 O were prepared by adjusting the molar of the NaOH and KHC 8 H 4 O 4 , meaning that NaOH and KHC 8 H 4 O 4 played an important role in the morphology and phase of the samples. The catalytic application in accelerating catalytic decomposition of ammonium perchlorate (AP) of the as-prepared samples was also investigated by means of differential scanning calorimetry (DSC). Compared with CuO (oval-shaped or plates), octahedral Cu 2 O exhibited better catalysis on thermal decomposition of AP. The present work can afford some guidance for the rationally controllable synthesis of other catalytic materials.

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“…2 − 5 Copper and its salts and oxides are highly effective catalysts in the thermal decomposition of ammonium perchlorate. 6 − 13 …”

Section: Introductionmentioning

confidence: 99%

Lattice Inclusion of Copper Ions in Ammonium Perchlorate through Co-crystallization: Impact on Lattice, Physical, and Thermal Characteristics

2020

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Ammonium perchlorate (AP) is an important oxidizer extensively used in composite solid propellants. Any alterations in the lattice configuration of AP could bring in a dramatic change in its physical, thermal, and ballistic characteristics though the basic thermodynamic properties could remain unaltered. In this work, we attempt to dope AP with copper nitrate through co-crystallization and examine its impact on the lattice, physical, and thermal characteristics. The effect of copper ion on the crystal morphology, bulk density, friability, moisture content, and the decomposition behavior is compared with normal propellant-grade AP. The incorporation of copper ion into AP resulted in an increase in bulk density and aspect ratio and a marginal decrease in the average particle size. The shape factor remained intact. The presence of copper ion remarkably decreased both the low- and high-temperature decomposition and reduced the activation energy for both stages, confirming the catalytic nature of copper-doped AP.

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Effect of nanostructured foamed porous copper on the thermal decomposition of ammonium perchlorate

Cited by 19 publications

References 15 publications

Noncrystalline structure of Ni–P nanoparticles prepared by liquid pulse discharge

Noncrystalline structure of Ni–P nanoparticles prepared by liquid pulse discharge

Controllable Synthesis and Catalytic Property of Novel Copper Oxides (CuO and Cu<sub>2</sub>O) Nanostructures

Lattice Inclusion of Copper Ions in Ammonium Perchlorate through Co-crystallization: Impact on Lattice, Physical, and Thermal Characteristics

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Effect of nanostructured foamed porous copper on the thermal decomposition of ammonium perchlorate

Cited by 19 publications

References 15 publications

Noncrystalline structure of Ni–P nanoparticles prepared by liquid pulse discharge

Noncrystalline structure of Ni–P nanoparticles prepared by liquid pulse discharge

Controllable Synthesis and Catalytic Property of Novel Copper Oxides (CuO and Cu&lt;sub&gt;2&lt;/sub&gt;O) Nanostructures

Lattice Inclusion of Copper Ions in Ammonium Perchlorate through Co-crystallization: Impact on Lattice, Physical, and Thermal Characteristics

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Controllable Synthesis and Catalytic Property of Novel Copper Oxides (CuO and Cu<sub>2</sub>O) Nanostructures