Investigation of the thermal decomposition mechanism and thermal hazards of hydroxylamine aqueous solution utilizing combined calorimetric methods and DFT calculations DOI
Xiaoliang Zhang,

Xuehui Wang,

Jun Zhang

et al.

Journal of Thermal Analysis and Calorimetry, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 25, 2024

Language: Английский

Quantum Chemistry Modeling of the Unimolecular Decomposition Mechanism and Substituent Effects of Pyrazolo-tetrazine: A Case Study of BITE-101 DOI Creative Commons
Zixuan Yang, Shuangfei Zhu,

Hai Ming Duan

et al.

Energetic Materials Frontiers, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Language: Английский

Citations

1
Modified Mechanical Strength, Thermal Decomposition, and Combustion Characteristics of Nitroguanidine Propellant with Graphene Nanosheets as Reinforcement DOI

Ling Chen,

Anning Sun,

Derong Meng

et al.

Industrial & Engineering Chemistry Research, Journal Year: 2024, Volume and Issue: 63(13), P. 5527 - 5541

Published: March 19, 2024

High energy, high strength, and stable combustion character are the basic requirements of a modern gun propellant (GP). Herein, graphene nanosheets (GNSs) introduced into nitroguanidine (NQ-GP) as reinforcements to modify its comprehensive performance. A series in-depth characterizations were conducted characterize structure composition propellant, demonstrating that GNSs integrated well in system. The result mechanical properties manifested anti-impact strength increased with increase content low 0.5% GP exerted better than those under different temperature conditions; brickwork bridging effect enhancement mechanism was proposed well. Besides, thermal decomposition investigated heating conditions like programmed pressure. It revealed can produce catalytic on process heat release. Additionally, analysis kinetics by method Friedman demonstrated addition proper could further enhance activation energy NQ-GP stability, which is opposite linear fitting methods Kissinger Ozawa. results obtained likely vary action mechanisms systems or stages. also high-pressure GNS contents obvious influence behavior such Tp Moreover, it found introduction would not burning stability rate coefficient (a) pressure exponent (n) be modified GNSs. Hence, work presented herein highly broadens application scope reinforcement nanofiller will potential value community development high-energy high-strength GPs.

Language: Английский

Citations

5
Preparation of 4-Amino-3-hydrazino-1,2,4-triazol-5-thiol-Modified Graphene Oxide and Its Greatly Enhanced Selective Adsorption of Gallium in Aqueous Solution DOI Creative Commons

Xi Zhu,

Yong Guo, Baozhan Zheng

et al.

Molecules, Journal Year: 2024, Volume and Issue: 29(12), P. 2778 - 2778

Published: June 11, 2024

Efficient recovery of gallium (Ga) from vanadium slag processing residue (VSPR) solution is great significance for environmental protection and resource utilization, but improving its selective adsorption against the coexisting Sc3+ In3+ still challenging. Herein, a novel adsorbent consisting 4-amino-3-hydrazino-1,2,4-triazol-5-thiol (AHTZT)-modified graphene oxide (GO-AHTZT) was successfully synthesized that exhibits higher selectivity Ga3+ in VSPR with In3+. Under optimal conditions, capacity GO-AHTZT can reach 23.92 mg g−1, which 4.9 12.6 times than (4.87 g−1) (1.90 adsorption, indicating excellent anti-interference ability The process mechanism onto also studied discussed detail. By measuring by characterizing before after we demonstrate interaction between Ga3+- N-containing groups AHTZT main reason improved selectivity. This work opens up an avenue design synthesis highly adsorbents complex solutions.

Language: Английский

Citations

5
Carbon nanofibers introduce nitroguanidine propulsion to improve mechanical properties, and the study of thermal decomposition, combustion behavior and molecular dynamics DOI

Ling Chen,

Anning Sun,

Jianwei Zhang

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 496, P. 153932 - 153932

Published: July 11, 2024

Language: Английский

Citations

4
Comparison of the Structure and Thermal Properties of Energetic Binders for Application in Propulsion DOI

Ling Chen,

Binbin Wang, Jianwei Zhang

et al.

ACS Applied Polymer Materials, Journal Year: 2023, Volume and Issue: 5(11), P. 9103 - 9115

Published: Oct. 30, 2023

Energetic binders, essential components of energetic materials (EMs), act as the main support for energy and mechanical properties propulsion. Compared with conventional nitrocellulose (NC), two nitrated bacterial cellulose (NBC) nitrate glycerol ether (NGEC), exhibit promising applications in enhancing strength propulsion due to their inherent physicochemical features. Herein, we present a series characterizations methods study structures NC, NBC, NGEC by scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier transform infrared (FT-IR) spectroscopy, Raman photoelectron spectroscopy (XPS). More importantly, thermal analysis was performed under four universal heating conditions: programmed, constant temperature, high pressure, adiabatic. It found that NBC exhibited higher stability activation (Ea) iso-conversional rate kinetic analysis, including Friedman, Vyazovkin, Ozawa–Flynn–Wall (OFW), Kissinger–Akahira–Sunose (KAS) methods. Under high-pressure conditions, decomposition reaction NC promoted increased pressure range 0–3 MPa, such decreased whereas stability. adiabatic it presented than can produce more gases generate less time. be concluded binders different exert various effects. Hence, results this work on may offer fundamental theory data supporting future formulas.

Language: Английский

Citations

8
Insights into the 5,5′-bis(1H-tetrazolyl)amine monohydrate (BTA·H2O) pyrolysis mechanism: integrated experimental and kinetic model analysis DOI
Jianwei Zhang, Ling Chen,

Peichen Han

et al.

New Journal of Chemistry, Journal Year: 2024, Volume and Issue: 48(13), P. 5840 - 5858

Published: Jan. 1, 2024

The gas products for the thermal decomposition process of BTA·H 2 O were analyzed using TG-DSC-FTIR. removal crystal water in molecule and mechanism BTA also was investigated a series analyses.

Language: Английский

Citations

3
Construction of nitrate glycerol ether cellulose/RDX energetic composite in gun propellants and its comprehensive performance DOI
Ling Chen, Jianwei Zhang,

Derong Meng

et al.

Cellulose, Journal Year: 2024, Volume and Issue: 31(9), P. 5725 - 5745

Published: May 10, 2024

Language: Английский

Citations

1
Effect of sulfuric residual acid on the physicochemical properties, thermal behavior, and decomposition kinetics of nitrocellulose DOI
Xiang Cao, Fengqiang Nan, Jianwei Zhang

et al.

Thermochimica Acta, Journal Year: 2023, Volume and Issue: 729, P. 179605 - 179605

Published: Sept. 27, 2023

Language: Английский

Citations

3
Interaction mechanism studies of 1H-tetrazole derivatives and nitrocellulose. Part 1: introduction of amino groups on C and N atoms DOI
Jianwei Zhang,

Chengming Bian,

Ling Chen

et al.

New Journal of Chemistry, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 1, 2024

The interaction analysis: the addition of aminotetrazole (5-ATZ and DATZ) mainly affected autocatalytic reaction at initial stage pyrolysis process NC. imino form 5-ATZ or DATZ played an important role in this process.

Language: Английский

Citations

0
Investigation of the thermal decomposition mechanism and thermal hazards of hydroxylamine aqueous solution utilizing combined calorimetric methods and DFT calculations DOI
Xiaoliang Zhang,

Xuehui Wang,

Jun Zhang

et al.

Journal of Thermal Analysis and Calorimetry, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 25, 2024

Language: Английский

Citations

0