Preparation of Nanoporous CoFe&lt;sub&gt;2&lt;/sub&gt;O&lt;sub&gt;4&lt;/sub&gt; and Its Catalytic Performance during the Thermal Decomposition of Ammonium Perchlorate

Xiong, Wenhui; Zhang, Wenchao; Yu, Chunpei; Shen, Ruiqi; Cheng, Jialin; Ye, Jia‐Hai; Zhichun, Qin

doi:10.3866/pku.whxb201605121

Cited by 13 publications

(5 citation statements)

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“…Besides, bimetallic oxide usually owns better catalytic activity for thermal decomposition of oxidants . Several kinds of bimetallic iron oxides have been fabricated and used for thermal decomposition of AP . These studies confirmed the catalytic activity of the ferrates for thermal decomposition of AP, however, most of the studies involved only single ferrate.…”

Section: Introductionmentioning

confidence: 74%

“…Besides, the catalytic activity of ferrate is also related to its crystallite size and particle size. The smaller crystallite size and particle size of NiFe 2 O 4 and CoFe 2 O 4 can provide more lattice defects and activity sites for AP thermal decomposition . The excellent catalytic activity of CoFe 2 O 4 comes from the synergistic interaction between Fe and Co, which is the most important factor affecting its catalytic performance for AP thermal decomposition.…”

Section: Resultsmentioning

confidence: 99%

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Catalytic Activity of Ferrates (NiFe₂O₄, ZnFe₂O₄ and CoFe₂O₄) on the Thermal Decomposition of Ammonium Perchlorate

Zhang¹,

Zhao²,

Yang³

et al. 2019

Propellants Explo Pyrotec

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Three kinds of ferrates (NiFe2O4, ZnFe2O4 and CoFe2O4) were prepared via the facile solvothermal method and characterized using SEM, TEM, XRD, XPS, FT‐IR and BET instruments. The NiFe2O4, CoFe2O4 and ZnFe2O4 particles possess hollow structure with average particle size of 70, 220 and 360 nm, respectively. The catalytic performance of the ferrates for AP thermal decomposition were studied using DSC and TG‐DTG methods, and the decomposition mechanism of AP were suggested. The catalytic effects of different ferrates for AP thermal decomposition were significantly different. The CoFe2O4 has the best catalytic activity, and the high thermal decomposition peak temperature (THDP) and apparent activation energy (Ea) of AP were decreased by 108.99 °C and 37.38 kJ mol−1 in the presence of CoFe2O4 sample. Adding ferrates has no obvious influence on the gas‐phase decomposition products of AP, but has a great influence on the energy barrier of high temperature decomposition of AP. The excellent catalytic activity of CoFe2O4 is mainly attributed to the synergistic interaction between Fe and Co, which is conducive to the thermal decomposition of AP.

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Section: Introductionmentioning

confidence: 74%

Section: Resultsmentioning

confidence: 99%

Catalytic Activity of Ferrates (NiFe₂O₄, ZnFe₂O₄ and CoFe₂O₄) on the Thermal Decomposition of Ammonium Perchlorate

Zhang¹,

Zhao²,

Yang³

et al. 2019

Propellants Explo Pyrotec

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“…For pure AP, the calculation result of the activation energy for the HTD process is 151.5 kJ/mol, which is consistent with the reported value. [ 42 ] The E a of AP thermal decomposition by Cu‐CA‐3.5 is reduced by 105.8 kJ/mol. In general, the E a of AP decomposition is associated with the primary dissociation step.…”

Section: Resultsmentioning

confidence: 99%

Facile Fabrication of Cu‐doped Carbon Aerogels as Catalysts for the Thermal Decomposition of Ammonium Perchlorate

Zhou

Jin

Chen

et al. 2020

Applied Organom Chemis

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We report a simple and effective method to produce copper-doped carbon aerogel (Cu-CA) using sodium alginate as a carbon precursor through ion crosslinking and high-temperature carbonization. Results indicate that Cualginate has a 3D scaffold structure with pores. The effect of using different metal salt mass ratios of Cu-CA on the catalytic thermal decomposition of AP is also investigated. The thermal decomposition temperature of AP decreases by 94.24 C, and the activation energy of the decomposition reaction is reduced by 45.7 kJ/mol. These results demonstrate that the composite exhibits superior catalytic performance compared with a single-component transition metal salt.

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“…The DSC curves of AP and RDX with and without catalysts at heating rates of 5, 10, 15, and 20 °C min –1 are shown in Figures S19 and S20, respectively. The kinetic parameters of the thermal degradation process were calculated according to the Kissinger method [ln(β/ T p 2 ) = − E a / RT p + ln(AR/ E a )], where β denotes the heating rate, T p represents the HTD peak temperature, R denotes the ideal gas constant, E a represents the apparent activation energy, and A denotes the prefactor of the Arrhenius equation . The value of E a can be calculated from the slope of the straight lines shown in Figure ; the computed results are displayed in Table S12.…”

Section: Resultsmentioning

confidence: 99%

Copper Complexes in Carbon Nanotubes as Catalysts for Thermal Decomposition of Energetic Oxidizers

Yang

Fang

et al. 2022

ACS Appl. Nano Mater.

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Metal compounds exhibit high catalytic activities in solid propellants as burning rate catalysts (BRCs), while the bulk particles and the nanoparticles loaded onto the surfaces of carbon materials cannot effectively display their catalytic activities. For reducing particle aggregation and improving their catalytic efficiencies as BRCs, seven copper complexes (CuL2) were successfully encapsulated into the inner spaces of carbon nanotubes (CNTs) via ultrasonication in this study. These complexes include Cu(Sal)2 (Sal = salicylate), CuC2O4, Cu(NO3)2·3H2O, Cu(acac)2 (acac = acetylacetonate), [Cu(TMEDA)2](NO3)2 (TMEDA = tetramethylethylenediamine), [Cu(MIM)4](DCA)2 (MIM = 1-methylimidazole, DCA = dicyanamide), and [Cu(NMIM)4](DCA)2 (NMIM = 1-methyl-2-nitroimidazole). In addition, the structures of the CuL2@CNT nanocomposites were investigated using transmission electron microscopy, scanning electron microscopy, Brunauer–Emmett–Teller surface area analysis, X-ray photoelectron spectroscopy, Fourier transform infrared (FTIR) spectroscopy, Raman spectroscopy, and X-ray diffraction. Moreover, the combustion catalytic performances of the nanocomposites in the thermal decomposition of ammonium perchlorate (AP), cyclotrimethylenetrinitramine (also known as RDX), and 1,1-diamino-2,2-dinitroethene were evaluated; these performances considerably affect the thermal degradation of AP and RDX. The 5 wt % Cu(acac)2@CNTs with outer diameters of 4–6 nm (L1) caused the peak temperature of AP to shift 92.8 °C toward left at the high-temperature decomposition stage, and the released heat increased by 1448.06 J g–1 compared to pure AP; the 5 wt % [Cu(NMIM)2](NO3)2/@CNT (L1) advanced the RDX peak temperature by 17.3 °C. Moreover, the thermal decomposition mechanism of RDX in the presence of Cu(acac)2@CNT (L1) was investigated via in situ solid FTIR and thermogravimetry–FTIR–mass spectrometry. The additive (CuL2@CNTs) accelerated the exothermic reaction of C–N bond breakage. This in turn reduced the endothermic reaction of the N–N bond cleavage in RDX, contributing to an increase in the heat released by RDX. Based on these results, a potential mechanism is proposed where RDX pyrolysis is catalyzed by the composites.

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Preparation of Nanoporous CoFe<sub>2</sub>O<sub>4</sub> and Its Catalytic Performance during the Thermal Decomposition of Ammonium Perchlorate

Cited by 13 publications

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Catalytic Activity of Ferrates (NiFe₂O₄, ZnFe₂O₄ and CoFe₂O₄) on the Thermal Decomposition of Ammonium Perchlorate

Catalytic Activity of Ferrates (NiFe₂O₄, ZnFe₂O₄ and CoFe₂O₄) on the Thermal Decomposition of Ammonium Perchlorate

Facile Fabrication of Cu‐doped Carbon Aerogels as Catalysts for the Thermal Decomposition of Ammonium Perchlorate

Copper Complexes in Carbon Nanotubes as Catalysts for Thermal Decomposition of Energetic Oxidizers

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Preparation of Nanoporous CoFe<sub>2</sub>O<sub>4</sub> and Its Catalytic Performance during the Thermal Decomposition of Ammonium Perchlorate

Cited by 13 publications

References 0 publications

Catalytic Activity of Ferrates (NiFe2O4, ZnFe2O4 and CoFe2O4) on the Thermal Decomposition of Ammonium Perchlorate

Catalytic Activity of Ferrates (NiFe2O4, ZnFe2O4 and CoFe2O4) on the Thermal Decomposition of Ammonium Perchlorate

Facile Fabrication of Cu‐doped Carbon Aerogels as Catalysts for the Thermal Decomposition of Ammonium Perchlorate

Copper Complexes in Carbon Nanotubes as Catalysts for Thermal Decomposition of Energetic Oxidizers

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Product

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Catalytic Activity of Ferrates (NiFe₂O₄, ZnFe₂O₄ and CoFe₂O₄) on the Thermal Decomposition of Ammonium Perchlorate

Catalytic Activity of Ferrates (NiFe₂O₄, ZnFe₂O₄ and CoFe₂O₄) on the Thermal Decomposition of Ammonium Perchlorate