Energetic Materials Frontiers最新文献_第2页

Design and performance of a micro-scale detonation train with a built-in pyrotechnic MEMS-based safety and arming device 一种内置烟火mems安全防护装置的微尺度爆轰列车的设计与性能

IF 3.3

Energetic Materials Frontiers Pub Date : 2024-09-01 DOI: 10.1016/j.enmf.2023.07.001

引用次数: 0

Synthesis and characterization of amphoteric salts and azo-bridged heat-resistant explosives with a 1,2,4-triazole framework 具有 1,2,4- 三唑框架的两性盐和偶氮桥接耐热炸药的合成与表征

Energetic Materials Frontiers Pub Date : 2024-08-30 DOI: 10.1016/j.enmf.2024.08.006

En-pei Feng, Jie Tang, Cheng-chuang Li, Teng Zhu, Hong-wei Yang, Guang-bin Cheng

{"title":"Synthesis and characterization of amphoteric salts and azo-bridged heat-resistant explosives with a 1,2,4-triazole framework","authors":"En-pei Feng, Jie Tang, Cheng-chuang Li, Teng Zhu, Hong-wei Yang, Guang-bin Cheng","doi":"10.1016/j.enmf.2024.08.006","DOIUrl":"https://doi.org/10.1016/j.enmf.2024.08.006","url":null,"abstract":"The formation of anions and cations from amphoteric compounds is an effective method to adjust the properties of amphoteric energetic materials, but there are few reports in the field of energetic materials. Based on the excellent properties and modifiability of 1,2,4-triazoles, this work provides a method for the synthesis of novel energetic materials by bridging triazole rings with carboxylic acid, ester and azo groups. Triazole cyclization of carboxylic acids gave the amphoteric compound 6,5-diamino-1′,4′-dihydro-4H,5′H-[3,3′-bis (1,2,4-triazole)]-5′-one () and formed the anionic hydroxylamine salt (), which was not ideal in thermal stability ( = 161 °C). In order to further adjust the properties, was reacted with nitric acid to form nitrate . Cationic nitrate has good thermal stability ( = 334 °C) and high detonation properties ( = 8337 m∙s) in high-energy nitrates. In addition, azo compound (5-nitro-1H, 2′H-[3,3′-bis (1,2,4-triazole)]-5′-yl) hydrazine () has low sensitivity ( = 20 J, = 240 N), good thermal stability ( = 287 °C) and detonation characteristics ( = 8602 m∙s, = 30.5 GPa) comparable to RDX ( = 8795 m∙s). Compounds and have good detonation properties and thermal stability, and have broad application prospects as heat-resistant insensitive explosives.","PeriodicalId":34595,"journal":{"name":"Energetic Materials Frontiers","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142219644","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Nitrogen-rich skeleton reassembled ECOFs as energetic materials with low sensitivities and good corrosion resistance 富氮骨架重新组装 ECOF，使其成为具有低敏感性和良好耐腐蚀性的高能材料

Energetic Materials Frontiers Pub Date : 2024-08-17 DOI: 10.1016/j.enmf.2024.08.003

Wen-zhe Huang, Lei Liu, Lu Lu, Yu-ji Liu, Wei Huang, Yong-xing Tang

{"title":"Nitrogen-rich skeleton reassembled ECOFs as energetic materials with low sensitivities and good corrosion resistance","authors":"Wen-zhe Huang, Lei Liu, Lu Lu, Yu-ji Liu, Wei Huang, Yong-xing Tang","doi":"10.1016/j.enmf.2024.08.003","DOIUrl":"https://doi.org/10.1016/j.enmf.2024.08.003","url":null,"abstract":"Corrosion between energetic materials and metal containers can accelerate material aging and failure, significantly affecting the safety, reliability, and lifespan of ammunition systems. To address this challenge, we propose the construction of energetic covalent organic frameworks (ECOFs) as a promising solution. We introduce a straightforward method for synthesizing nitrogen-rich ECOFs. The synthesized ECOFs were characterized through powder X-ray diffraction (PXRD), solid-state nuclear magnetic resonance (ssNMR), and Fourier-transform infrared spectroscopy (FTIR). These frameworks exhibit remarkable thermal stability, with decomposition temperatures above 285 °C. Notably, they display low sensitivity to non-explosive stimuli, as evidenced by impact sensitivity over 60 J and friction sensitivity over 360 N. The anti-rust properties of the ECOFs were further evaluated using Tafel curve analysis, highlighting their exceptional resistance to metal corrosion. Particularly, ECOF-3, synthesized from triaminoguanidine nitrate and 5-nitro-1,3-benzenedicarboxaldehyde, stands out for its superior steel corrosion resistance. These ECOFs have potential applications as high-energy, anti-corrosion coatings materials.","PeriodicalId":34595,"journal":{"name":"Energetic Materials Frontiers","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142219645","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Construction of electrochemical flow reactor: Static mixing and micro-cell for dehydrogenation oxidation from TNT to 2,2′,4,4′,6,6′-hexanitrostilbene 建造电化学流动反应器：用于从 TNT 到 2,2′,4,4′,6,6′-己硝基苯的脱氢氧化的静态混合和微电池

Energetic Materials Frontiers Pub Date : 2024-08-12 DOI: 10.1016/j.enmf.2024.08.001

Yu-qiu Wang, Yu-hui Dong, Ya-qi Qin, Ming Lu, Peng-cheng Wang

引用次数: 0

On-site trace detection of explosives: From ultra-sensitive SERS to integrated detection technology 现场爆炸物痕量检测：从超灵敏 SERS 到集成检测技术

Energetic Materials Frontiers Pub Date : 2024-08-12 DOI: 10.1016/j.enmf.2024.08.002

Zi-han Wang, Wei Liu, Yu Dai, Zhong-ping Liu, Meng-dan Ma, Sheng Cui, Xuan He, Yu Liu

{"title":"On-site trace detection of explosives: From ultra-sensitive SERS to integrated detection technology","authors":"Zi-han Wang, Wei Liu, Yu Dai, Zhong-ping Liu, Meng-dan Ma, Sheng Cui, Xuan He, Yu Liu","doi":"10.1016/j.enmf.2024.08.002","DOIUrl":"https://doi.org/10.1016/j.enmf.2024.08.002","url":null,"abstract":"In light of escalating global tensions and the persistent frequency of terrorist incidents, explosives have caused unpredictable serious environmental problems in the worldwide. The imperative for rapid, highly sensitive and accurate detection of explosives has been propelled to the forefront of priorities across various fields, especially national defense and environmental protection. Surface-enhanced Raman scattering (SERS) has emerged as a potent technology for the detection of explosives, attributed to its exceptional sensitivity, rapidity and non-destructive characterization of specific analytes. Concurrently, high-performance substrates and portable devices have expanded the use of SERS technology from the lab to field applications, increasing its potential utility. This progress report summarizes the progress of SERS and related integrated technologies for explosives detection in recent years. Following an introductory synopsis of SERS enhancement principles, this exposition focuses on the pivotal role of SERS substrates in the detection of explosives. It delineates the multifaceted advantages of SERS technology in the realm of explosive detection from three critical dimensions: ultra-sensitivity, semi-quantitative and high selectivity. The report subsequently introduces cutting-edge integration techniques that are compatible with SERS, such as portable Raman instruments, on-site wipeable sampling technology and microfluidic devices, all of which are major advances in promoting on-site high-throughput explosives detection programs. In conclusion, this report synthesizes the outcomes attained and delineates prospective directions for future research in the field of SERS explosives detection.","PeriodicalId":34595,"journal":{"name":"Energetic Materials Frontiers","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142219646","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Amphoteric feature of 3,5-diamino-6-hydroxy-2-oxide-4-nitropyrimidone and its highly-stable energetic anionic salts 3,5-二氨基-6-羟基-2-氧化物-4-硝基嘧啶酮及其高稳定高能阴离子盐的两性特征

Energetic Materials Frontiers Pub Date : 2024-07-22 DOI: 10.1016/j.enmf.2024.07.002

Tian Lei, Yan-da Jiang, Bao-jing Tian, Ning Ding, Qi Sun, Sheng-hua Li, Si-ping Pang

引用次数: 0

Anisotropic shock response in oriented omnidirectional TATB supercells based on reactive molecular dynamics simulations 基于反应分子动力学模拟的定向全向 TATB 超级胞体中的各向异性冲击响应

Energetic Materials Frontiers Pub Date : 2024-07-18 DOI: 10.1016/j.enmf.2024.07.001

Guan-chen Dong, Jia-lu Guan, Ling-hua Tan, Jing Lv, Xiao-na Huang, Guang-cheng Yang

{"title":"Anisotropic shock response in oriented omnidirectional TATB supercells based on reactive molecular dynamics simulations","authors":"Guan-chen Dong, Jia-lu Guan, Ling-hua Tan, Jing Lv, Xiao-na Huang, Guang-cheng Yang","doi":"10.1016/j.enmf.2024.07.001","DOIUrl":"https://doi.org/10.1016/j.enmf.2024.07.001","url":null,"abstract":"1,3,5-Triamino-2,4,6-trinitrobenzene (TATB) is a highly insensitive energetic material used in applications where extreme safety is required primarily. Ensuring the safe use of TATB as planned relies on research into intrinsic behavior under shock loading, which needs further investigation. Here, we study the shock response in oriented supercells of the highly anisotropic TATB based on reactive molecular dynamics simulations and multi-scale shock technique. Results demonstrate that the mechanical response primarily consists of adiabatic compression and plastic deformation. The system is more susceptible to be compressed rather than plastic deformed when shocked direction to the molecular layer at a 45° angle, resulting in the most obvious initial temperature increase. The chemical reaction pathways are similar in our simulations. Under shock loading, polymerization occurs first and then decomposition begins. However, the overall chemical kinetics response intensifies, as the angle between the shock direction and molecular layer decreases. Nonetheless, the rate of decomposition does not strictly correlate with shock direction. Moreover, clusters evolution shows different reactivity based on shock direction and velocity, which makes anisotropy weak at high shock velocity.","PeriodicalId":34595,"journal":{"name":"Energetic Materials Frontiers","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141770485","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synthesis and characterization of a new cage-like energetic compound 3,7-dinitrato-9-nitro-9-azanoradamantane 新型笼状高能化合物 3,7-二硝基-9-硝基-9-氮杂金刚烷的合成与表征

Energetic Materials Frontiers Pub Date : 2024-06-25 DOI: 10.1016/j.enmf.2024.06.005

Long Zhu, Qi Zhou, Wei Wang, Huan Li, Bing Li, Yu Zhang, Jun Luo

引用次数: 0

Time for mixing: Mixed dicationic energetic salts based on methylene bridged 4-hydroxy-3,5-dinitropyrazole and tetrazole for tunable performance 混合时间：基于亚甲基桥接 4-羟基-3,5-二硝基吡唑和四唑的混合双阳离子高能盐实现可调性能

IF 3.3

Energetic Materials Frontiers Pub Date : 2024-06-01 DOI: 10.1016/j.enmf.2024.05.001

Prachi Bhatia , Vikas D. Ghule , Dheeraj Kumar

{"title":"Time for mixing: Mixed dicationic energetic salts based on methylene bridged 4-hydroxy-3,5-dinitropyrazole and tetrazole for tunable performance","authors":"Prachi Bhatia , Vikas D. Ghule , Dheeraj Kumar","doi":"10.1016/j.enmf.2024.05.001","DOIUrl":"10.1016/j.enmf.2024.05.001","url":null,"abstract":"<div><p>Various types of materials have been explored in the pursuit of high energy density materials (HEDMs) that have balanced energy and stability. Among them, energetic salts show numerous advantages, such as lower vapor pressures, high physical stabilities, and the opportunity for favorable tuning by careful selection of cations/anions. Nitrogen-rich bases are generally used as cations for energetic salt formation. While the synthesis of salts with larger cations lowers the sensitivity, smaller cations aid better energetic performance. A combination of both in the same ionic moieties might help in the formation of a superior explosive. In this work, a facile route for the synthesis of mixed dicationic energetic salts based on 1-((1<em>H</em>-tetrazol-5-yl)methyl)-3,5-dinitro-1<em>H</em>-pyrazol-4-ol (compound <strong>1</strong>) has been explored by various combinations of bigger and smaller cations (compounds <strong>4</strong>–<strong>10</strong>). All the synthesized energetic salts showed high positive heats of formation, energetic performance comparable to TATB, excellent stability towards impact and friction, and acceptable thermal stabilities. This improved technique will provide an additional option for fine-tuning the energetic properties of HEDMs and will facilitate in exploring the role of various cations in the overall performance of the energetic compounds.</p></div>","PeriodicalId":34595,"journal":{"name":"Energetic Materials Frontiers","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666647224000332/pdfft?md5=1c23ee7fc721386d4ee38c7b8b05c914&pid=1-s2.0-S2666647224000332-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141050555","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Preparing HNS/n-Al heat-resistant microspheres with enhanced combustion performance using droplet microfluidic technology 利用液滴微流体技术制备具有更佳燃烧性能的 HNS/n-Al 耐热微球

IF 3.3

Energetic Materials Frontiers Pub Date : 2024-06-01 DOI: 10.1016/j.enmf.2023.10.003

Bi-dong Wu , Yi Liu , Jia-hui Yang , Yun-yan Guo , Kai Han , Fan Wang , Zhong-ze Zhang , Chong-wei An , Jing-yu Wang

{"title":"Preparing HNS/n-Al heat-resistant microspheres with enhanced combustion performance using droplet microfluidic technology","authors":"Bi-dong Wu , Yi Liu , Jia-hui Yang , Yun-yan Guo , Kai Han , Fan Wang , Zhong-ze Zhang , Chong-wei An , Jing-yu Wang","doi":"10.1016/j.enmf.2023.10.003","DOIUrl":"10.1016/j.enmf.2023.10.003","url":null,"abstract":"<div><p>Reducing the formation of large carbon clusters during the combustion of energetic materials (EMs) and improving their comprehensive performance hold great significance. With fluororubber (F<sub>2604</sub>) as a binder, this study prepared HNS/n-Al microspheres with different n-Al contents (5%, 10%, and 15%) using droplet microfluidic technology. Then, it characterized and tested the morphology, particle size distribution, dispersibility, crystal structure, thermal properties, mechanical sensitivity, and combustion behavior of the microspheres. The results show that the prepared microspheres had regular shapes, uniform particle sizes, and excellent dispersibility and contained more homogeneous components than physically mixed samples. Furthermore, the microspheres retained the crystal structures of the raw materials, enjoying high safety performance. The thermal analysis shows that HNS/n-Al microspheres had high heat resistance (thermal decomposition temperature: over 354 °C) and that a higher n-Al content was associated with more thorough thermal decomposition reactions of HNS (HNS: 83%, HNS/n-Al: 84%, 86%, and 93%). The ignition experiments show that the HNS/n-Al microspheres possessed excellent and stable combustion performance, as evidenced by more complete combustion reactions and significantly elevated energy release efficiency. Therefore, it is expected to achieve high-energy and high-speed responses of carbon-rich EMs and promote their practical applications.</p></div>","PeriodicalId":34595,"journal":{"name":"Energetic Materials Frontiers","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666647223000635/pdfft?md5=84dc814eb253cdccfca6ed5ca3f5e53c&pid=1-s2.0-S2666647223000635-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135850123","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0