Energetic Materials Frontiers最新文献_第5页

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

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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

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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

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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

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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>Reducing the formation of large carbon clusters during the combustion of energetic materials (EMs) and improving their comprehensive performance hold great significance. With fluororubber (F2604) 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.</div>","PeriodicalId":34595,"journal":{"name":"Energetic Materials Frontiers","volume":"5 2","pages":"Pages 81-89"},"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}

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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>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-((1H-tetrazol-5-yl)methyl)-3,5-dinitro-1H-pyrazol-4-ol (compound 1) has been explored by various combinations of bigger and smaller cations (compounds 4–10). 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.</div>","PeriodicalId":34595,"journal":{"name":"Energetic Materials Frontiers","volume":"5 2","pages":"Pages 105-111"},"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}

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Low-temperature rheological properties and viscosity equation of Al/HTPB suspension system Al/HTPB 悬浮体系的低温流变特性和粘度方程

IF 3.3

Energetic Materials Frontiers Pub Date : 2024-06-01 DOI: 10.1016/j.enmf.2024.04.001

Ke Wang , Min Xia , Qi-fa Yao , Yi-xuan Xie , Lin Zhong , Yu-zhan Li , Wei Yang , Yun-jun Luo

{"title":"Low-temperature rheological properties and viscosity equation of Al/HTPB suspension system","authors":"Ke Wang , Min Xia , Qi-fa Yao , Yi-xuan Xie , Lin Zhong , Yu-zhan Li , Wei Yang , Yun-jun Luo","doi":"10.1016/j.enmf.2024.04.001","DOIUrl":"10.1016/j.enmf.2024.04.001","url":null,"abstract":"<div>The rheological behavior of propellant slurries is crucial for ensuring the feasibility of the 3D printing process, controlling print quality, regulating performance, and simulating predictions. However, there have been relatively few prior studies on the rheological properties of composite solid propellant slurries at low temperatures, which hinders the application of 3D printing propellant technology under extreme temperature conditions. In addition, the use of 3D printing technology to manufacture propellants at low temperatures is advantageous for improving safety. This paper investigates the rheological properties of monodisperse systems with aluminum powder as a solid filler and end-hydroxy polybutadiene (HTPB) as the dispersed phase at low temperatures (−15∼10 °C). It explores the effects of solid content, temperature, and particle size on their rheological properties. Results show that the viscosity of the system in the range of −15∼10 °C increases exponentially with the decrease in temperature, and the viscosity at −15 °C increases by 616.90 % compared with that at 10 °C when the volume fraction (φ) of Al-1 is 35.8 %; the larger size of the particles the larger the viscosity is when the temperature and φ are the same, which is interpretes in terms of interfacial properties between the systems. The low-temperature correction factor is introduced into the Einstein-Roscoe equation to obtain the modified viscosity-volume fraction equation, and the correction factor is 0.0173, as evidenced by its excellent agreement with the experimental data.</div>","PeriodicalId":34595,"journal":{"name":"Energetic Materials Frontiers","volume":"5 2","pages":"Pages 96-104"},"PeriodicalIF":3.3,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666647224000319/pdfft?md5=29dd9c399e37a5547f14e23a6ea0135c&pid=1-s2.0-S2666647224000319-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141025884","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}

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Cover Story 封面故事

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Energetic Materials Frontiers Pub Date : 2024-06-01 DOI: 10.1016/S2666-6472(24)00044-7

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Graphical Abstract 图表摘要

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Energetic Materials Frontiers Pub Date : 2024-06-01 DOI: 10.1016/S2666-6472(24)00045-9

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Deprotonation-assisted electrochemical synthesis of copper nitrotriazole with excellent ignition performance 去质子化辅助电化学合成具有优异点火性能的硝基三唑铜

IF 3.3

Energetic Materials Frontiers Pub Date : 2024-06-01 DOI: 10.1016/j.enmf.2023.12.003

Jun-hong Chen, Chun-pei Yu, Jian-yong Xu, Chang-kun Song, Wei Shi, Xiao-ting Lei, Bo-nan Gu, Ming-hao Bao, Wen-chao Zhang

{"title":"Deprotonation-assisted electrochemical synthesis of copper nitrotriazole with excellent ignition performance","authors":"Jun-hong Chen, Chun-pei Yu, Jian-yong Xu, Chang-kun Song, Wei Shi, Xiao-ting Lei, Bo-nan Gu, Ming-hao Bao, Wen-chao Zhang","doi":"10.1016/j.enmf.2023.12.003","DOIUrl":"10.1016/j.enmf.2023.12.003","url":null,"abstract":"<div>Electrochemical synthesis serves as a green and efficient method with great application potential. However, it has not been extensively applied in the synthesis of energetic materials. Nitrogen-rich heterocyclic compounds, as a new generation of energetic materials, enjoy advantages such as eco-friendliness, high energy output, and excellent safety performance. This study reports the electrochemical cathodic synthesis of copper nitrotriazole [Cu(NTz)2] using copper chloride and 3-nitro-1,2,4-triazole as a reaction substrate and triethylamine as a deprotonation agent. The obtained Cu(NTz)2 comprises uniform spherical particles of nano lamellae. As the dosage of triethylamine increased from 50 μL to 150 μL, Cu(NTz)2 gradually grew into compact solid spherical particles, significantly increasing the energy output. Notably, the heat release increased from 711 J g−1 to 1301 J g−1, accompanied by a significant positive elevation of ignition performance and peak combustion pressure in the process of confined combustion. This greatly boosted the energetic performance of Cu(NTz)2. Moreover, Cu(NTz)2 demonstrates insensitivity to electrostatic discharge (E50＞225 mJ) and friction (FS＞360 N), suggesting excellent safety performance. Owing to its outstanding energetic and safety performance, Cu(NTz)2 boasts great potential for application as pyrotechnic compositions, including military gas-producing and incendiary agents. Moreover, it has been corroborated that Cu(NTz)2 can be applied as a micro ignitor.</div>","PeriodicalId":34595,"journal":{"name":"Energetic Materials Frontiers","volume":"5 2","pages":"Pages 73-80"},"PeriodicalIF":3.3,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666647223000696/pdfft?md5=f8d982b8d340f26441ebf2f5550ed0fd&pid=1-s2.0-S2666647223000696-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138627786","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}

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Technologies for room-temperature self-healing polymer materials and their applications in energetic materials 室温自愈合聚合物材料技术及其在高能材料中的应用

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Energetic Materials Frontiers Pub Date : 2024-06-01 DOI: 10.1016/j.enmf.2024.06.001

Xing-ling Hu , Min Xia , Ming-hao Zhang , Wei Yang , Fan-zhi Yang , Yun-jun Luo

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