Study of H2AzTO-based energetic metal-organic frameworks for catalyzing the thermal decomposition of ammonium perchlorate

Chemical Engineering Journal, Год журнала: 2020, Номер 404, С. 126287 - 126287

Опубликована: Июль 21, 2020

Язык: Английский

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High-energy hydroxytetrazoles: Design, synthesis and performance

Energetic Materials Frontiers, Год журнала: 2021, Номер 2(1), С. 3 - 13

Опубликована: Янв. 14, 2021

In recent years, the development of novel advanced high-energy density materials has significantly shifted toward nitrogen-containing heterocyclic derivatives, which demonstrate a great potential for multipurpose application patterns. Among known heterocycles hydroxytetrazole is special importance due to its high nitrogen-oxygen content and possibility serve as anion counterpart form diverse array organic inorganic energetic salts. this review, we summarized main achievements on synthesis performance hydroxytetrazole-based materials. Potential applications presented compounds their environmental compatibility are especially emphasized.

Язык: Английский

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Progress in Energy−Safety Balanced Cocrystallization of Four Commercially Attractive Nitramines

Crystal Growth & Design, Год журнала: 2024, Номер 24(17), С. 7361 - 7388

Опубликована: Авг. 19, 2024

In 2011, cocrystallization of energetic materials became a hot topic and pathway to overcome the energy−safety contradiction; especially for commercially attractive nitramines, it first preference researchers. The present review focuses on energetic−energetic four CL20, HMX, BCHMX, RDX, structural aspects these cocrystals, their influence thermochemical detonation properties. Cocrystallization has proven be crystal engineering technique achieve safety morphological suitability cocrystals (EECCs). Overall, in most cases, impact sensitivities EECCs are decreased, this is phenomenal change; however, needed adjust with properties slightly, negligible if coformer (EMs) properly chosen. There other notable variations morphologies packing crystals, including key such as relatively high density melting point. These changes occur due binding energy, trigger bond length, cohesive energy during cocrystallization. Researchers highly focused nitramines; earlier reported methods lacking selectivity scalability. When comes adoption industrial scale production EECCs, more difficult. We conducted thorough literature survey. Also we discussed about recently developed VPSZ coagglomeration method, which provides huge opportunity tune performance existing easy up level.

Язык: Английский

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Preparation and characterization of HMX/NH2-GO composite with enhanced thermal safety and desensitization

Defence Technology, Год журнала: 2021, Номер 18(11), С. 2074 - 2082

Опубликована: Июнь 11, 2021

Язык: Английский

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Combination of 3-Aminofurazan-4-carboxylic Acid and Transition Metals to Prepare Functional Energetic Catalysts for Catalyzing the Decomposition of Ammonium Perchlorate

Crystal Growth & Design, Год журнала: 2022, Номер 22(10), С. 5802 - 5813

Опубликована: Июль 6, 2022

To improve the combustion performance of ammonium perchlorate (AP), more high-performance catalysts need to be developed. In this paper, five new types energetic coordination complexes were prepared by combining 3-aminofurazan-4-carboxylic acid (AFCA) with transition metals (Co, Ni, Fe, Cu, and Mn). The structures determined single-crystal X-ray diffraction. Differential scanning calorimetry thermogravimetric analysis performed characterize thermal stability complexes. exhibit superior energy properties traditional explosive TNT. was improved a certain extent after binding metal. Catalytic experiments adding 10 wt % AP differential instruments. Results indicate that best catalyst is manganese as metal center, which decreases high-temperature decomposition (HTD) peak 133.3 °C activation (E) 102.2 kJ/mol increases mixture heat release than four times. Thermogravimetric analysis-Fourier transform infrared spectroscopy applied monitor process catalyzing AP, indicates HTD advanced substantially. experimental results show complex 4 5 can burn vigorously. Overall, furazan-based we synthesized have good catalytic potential for solid propellant.

Язык: Английский

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Hydrogen bond and 3D frameworks to reconcile the conflict between safety and detonation performance in energetic metal–organic frameworks

Chemical Engineering Journal, Год журнала: 2022, Номер 453, С. 139762 - 139762

Опубликована: Окт. 25, 2022

Язык: Английский

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Series of AzTO-Based Energetic Materials: Effect of Different π–π Stacking Modes on Their Thermal Stability and Sensitivity

Langmuir, Год журнала: 2021, Номер 37(23), С. 7118 - 7126

Опубликована: Июнь 3, 2021

π-Stacking is common in materials, but different π–π stacking modes remarkably affect the properties and performances of materials. In particular, weak interactions, π-stacking hydrogen bonding, often have a great impact on stability sensitivity high-energetic compounds. Therefore, several energetic materials based 1,1′-dihydroxyazotetrazole (1) with nearly flat structure, such as salts aminoguanidine (2), 1,3-diaminoguanidine (3), imidazole (4), pyrazole (5) triaminoguanidine (6), cocrystal 2-methylimidazole (7), were designed synthesized. Based single-crystal diffraction data, thermal decomposition behaviors, mechanical test, compounds 4, 5, 7 face-to-face display outstanding insensitivity.

Язык: Английский

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1-Hydroxy-1,2,3,4-tetrazole and its transition metal complexes: A family of green high-energy catalysts for ammonium perchlorate

Journal of Solid State Chemistry, Год журнала: 2022, Номер 308, С. 122896 - 122896

Опубликована: Янв. 17, 2022

Язык: Английский

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Catalytic thermal decomposition of ammonium perchlorate by a series of lanthanide EMOFs

Journal of Rare Earths, Год журнала: 2022, Номер 41(4), С. 516 - 522

Опубликована: Май 31, 2022

Язык: Английский

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Syntheses, Structures, and Magnetic Properties of Novel [3×1 + 2×1] Pentanuclear Zinc(II)-Lanthanide(III) Cocrystal Complexes: Slow Magnetic Relaxation Behavior of the Dy(III) Analogue

Crystal Growth & Design, Год журнала: 2023, Номер 23(4), С. 2218 - 2230

Опубликована: Фев. 27, 2023

A new family of 3d-4f polynuclear cocrystals [LnZn2L2(CH3CO2)4]·[Zn2Cl4L]·H2O [where LnIII = Gd(1), Tb(2), and Dy(3)] are synthesized by the sequential reaction a tetradentate multisite coordinating compartmental ligand, i.e., (E)-2-methoxy-6-(((pyridine-2-ylmethyl)imino)methyl)phenol, in presence LnCl3·6H2O Zn(OAc)2·2H2O. The detailed studies involve mainly synthesis, structure, magnetic properties three isostructural cocrystals. X-ray diffraction analysis reveals that complexes 1–3 crystallize triclinic crystal system with P1̅ space group. dimeric [Zn2Cl4L]− complex appears as cocrystal vicinity [LnZn2L2(CH3CO2)4]+ structure to counter balance overall charge on primary coordination sphere. Magnetic relaxation indicate zero-field out-of-phase susceptibility signals observed only for 3 (DyIII analogue) which gets well resolved Hdc 0.5 kOe field. extracted effective energy barrier (Ueff) pre-exponential factor (τ0) is found be 13.53 K 1.78 × 10–6 s, respectively. appearance single-ion magnet rationalized CASSCF/SO-RASSI/SINGLE_ANISO based ab initio calculations.

Язык: Английский

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