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Yin Y, Dong Y, Li M, Ma Z. Simultaneously Altering the Energy Release and Promoting the Adhesive Force of an Electrophoretic Energetic Film with a Fluoropolymer. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:2569-2575. [PMID: 35175063 DOI: 10.1021/acs.langmuir.1c03170] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Energetic coatings have attracted a great deal of interest with respect to their compatibility and high energy and power density. However, their preparation by effective and inexpensive methods remains a challenge. In this work, electrophoretic deposition was investigated for the deposition of an Al/CuO thermite coating as a typical facile effective and controllable method. Given the poor adhesion of the deposited film and the native inert Al2O3 shell on Al limiting energy output, further treatment was conducted by soaking in a Nafion solution, which not only acted as a fluoropolymer binder but also introduced a strong F oxidizer. It is interesting to note that the adhesion level of Al/CuO films was improved greatly from 1B to 4B, which was attributed to Nafion organic network film formation, like a fishing net covering the loose particles in the film. Combustion and energy release were analyzed using a high-speed camera and a differential scanning calorimeter. A combustion rate of ≤3.3 m/s and a heat release of 2429 J/g for Al/NFs/CuO are far superior to those of pristine Al/CuO (1.3 m/s and 841 J/g, respectively). The results show that the excellent combustion and heat release properties of the energetic film system are facilitated by the good combustion-supporting properties of organic molecules and the increase in the film density after organic treatment. The prepared Al/NFs/CuO film was also employed as ignition material to fire B-KNO3 explosive successfully. This study provides a new way to prepare organic-inorganic hybrid energetic films, simultaneously altering the energy release and enhancing the adhesive force. In addition, the Al/NFs/CuO coating also showed considerable potential as an ignition material in microignitors.
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Affiliation(s)
- Yanjun Yin
- Engineering Technology Center of Department of Education of Anhui Province, School of Chemistry and Material Engineering, Chaohu University, Chaohu 238024, China
| | - Yue Dong
- Engineering Technology Center of Department of Education of Anhui Province, School of Chemistry and Material Engineering, Chaohu University, Chaohu 238024, China
| | - Mingling Li
- Engineering Technology Center of Department of Education of Anhui Province, School of Chemistry and Material Engineering, Chaohu University, Chaohu 238024, China
| | - Zili Ma
- Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, China
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Zhang D, Xiang Q. Electrophoretic assembly of Sn-Bi film for the voltammetric determination of Cd(II) and Pb(II). Microchem J 2021. [DOI: 10.1016/j.microc.2021.106265] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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3
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Jiang Y, Cheng Z, Xu C, Chu X, Zhao P, Zhang L, Yin J, Zhao W, Dai B, Zhong H, Xu J. Facile Fabrication of Highly Efficient Hollow Ni/Al Bimetal Fuel with Enhanced Thermal Oxidation Behavior. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c00656] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yu Jiang
- Jiangsu Key Laboratory for Chemistry of Low-Dimensional Materials, School of Chemistry & Chemical Engineering, Huaiyin Normal University, Huaian 223300, China
| | - Zhipeng Cheng
- Jiangsu Key Laboratory for Chemistry of Low-Dimensional Materials, School of Chemistry & Chemical Engineering, Huaiyin Normal University, Huaian 223300, China
| | - Chenxiao Xu
- Jiangsu Key Laboratory for Chemistry of Low-Dimensional Materials, School of Chemistry & Chemical Engineering, Huaiyin Normal University, Huaian 223300, China
| | - Xiaozhong Chu
- Jiangsu Key Laboratory for Chemistry of Low-Dimensional Materials, School of Chemistry & Chemical Engineering, Huaiyin Normal University, Huaian 223300, China
| | - Pusu Zhao
- Jiangsu Key Laboratory for Chemistry of Low-Dimensional Materials, School of Chemistry & Chemical Engineering, Huaiyin Normal University, Huaian 223300, China
| | - Lili Zhang
- Jiangsu Key Laboratory for Chemistry of Low-Dimensional Materials, School of Chemistry & Chemical Engineering, Huaiyin Normal University, Huaian 223300, China
| | - Jingzhou Yin
- Jiangsu Key Laboratory for Chemistry of Low-Dimensional Materials, School of Chemistry & Chemical Engineering, Huaiyin Normal University, Huaian 223300, China
| | - Wei Zhao
- Jiangsu Key Laboratory for Chemistry of Low-Dimensional Materials, School of Chemistry & Chemical Engineering, Huaiyin Normal University, Huaian 223300, China
| | - Benlin Dai
- Jiangsu Key Laboratory for Chemistry of Low-Dimensional Materials, School of Chemistry & Chemical Engineering, Huaiyin Normal University, Huaian 223300, China
| | - Hui Zhong
- Jiangsu Key Laboratory for Chemistry of Low-Dimensional Materials, School of Chemistry & Chemical Engineering, Huaiyin Normal University, Huaian 223300, China
| | - Jiming Xu
- Jiangsu Key Laboratory for Chemistry of Low-Dimensional Materials, School of Chemistry & Chemical Engineering, Huaiyin Normal University, Huaian 223300, China
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Dai J, Wang C, Wang Y, Xu W, Xu J, Shen Y, Zhang W, Ye Y, Shen R. From nanoparticles to on-chip 3D nanothermite: electrospray deposition of reactive Al/CuO@NC onto semiconductor bridge and its application for rapid ignition. NANOTECHNOLOGY 2020; 31:195712. [PMID: 31978923 DOI: 10.1088/1361-6528/ab6fd8] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Nanothermites composed of nano-fuels and oxidants are attractive energetic materials, which have potential applications in microscale energy-demanding systems. Herein, nano-Al/CuO with nitrocellulose (NC) binder have been bottom-up assembled on semiconductor bridge (SCB) chip by electrospray, from nanoparticles to three-dimensional (3D) deposited structure. The morphological and compositional characterization confirms the constituents in Al/CuO@NC are homogeneously mixed at nano scale and the 3D structure at micro scale is tunable. The as-deposited Al/CuO@NC exhibits excellent energy output and superior chemical reactivity. Specifically, the heat release of Al/CuO@NC (1179.5 J g-1) is higher than that of random mixed Al/CuO (730.9 J g-1). Benefiting from outstanding exothermic properties, the material integrated with SCB initiator chip (Al/CuO@NC-SCB) for potential ignition application was investigated. The Al/CuO@NC-SCB micro energetic initiator can be functioned rapidly (with delay time of 2.8 μs) and exhibits superb ignition performances with violent explosion process, high combustion temperature (4636 °C) and successful ignition of B/KNO3 propellant, in comparison to SCB initiator. The strategy provides promising route to introduce nano reactive particles into various functional energy-demanding systems for potential energetic applications.
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Affiliation(s)
- Ji Dai
- Department of Applied Chemistry, School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, People's Republic of China. Institute of Chemical Materials, CAEP, Mianyang 621999, People's Republic of China
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5
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Zhang D, Pei R, Peng X, Xiang Q, Wang X. Environment‐Friendly Formation of High Energetic Nano‐Al/Fe
2
O
3
Bilayer by Aqueous Electrophoretic Deposition. PROPELLANTS EXPLOSIVES PYROTECHNICS 2019. [DOI: 10.1002/prep.201900025] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Daixiong Zhang
- College of Environment and ResourcesChongqing Technology and Business University Chongqing 400067 P. R. China
- School of Materials Science and EngineeringSouthwest Petroleum University Chengdu 610500 P. R. China
| | - Rui Pei
- School of Materials Science and EngineeringSouthwest Petroleum University Chengdu 610500 P. R. China
| | - Xiofei Peng
- School of Materials Science and EngineeringSouthwest Petroleum University Chengdu 610500 P. R. China
| | - Qing Xiang
- Sichuan Fine Arts Institute Chongqing 401331 P. R. China
| | - Xia Wang
- School of Materials Science and EngineeringSouthwest Petroleum University Chengdu 610500 P. R. China
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Hu B, Zhang W, Yu C, Zheng Z, Chen Y, Wang J, Liu J, Ma K, Ren W. Electrochemical Synthesis of Al/CuO Thermite Films on Copper Substrates. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.8b05959] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Bin Hu
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
| | - Wenchao Zhang
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
| | - Chunpei Yu
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
| | - Zilong Zheng
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
| | - Yajie Chen
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
| | - Jiaxin Wang
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
| | - Jingping Liu
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
| | - Kefeng Ma
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
| | - Wei Ren
- Shanxi Applied Physics and Chemistry Research Institute, Xian, 710000, China
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Huang S, Deng S, Jiang Y, Zhao J, Zheng X. Electroless Deposition and Ignition Properties of Si/Fe 2O 3 Core/Shell Nanothermites. ACS OMEGA 2017; 2:3596-3600. [PMID: 31457677 PMCID: PMC6641388 DOI: 10.1021/acsomega.7b00652] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Accepted: 07/04/2017] [Indexed: 05/24/2023]
Abstract
Thermite, a composite of metal and metal oxide, finds wide applications in power and thermal generation systems that require high-energy density. Most of the researches on thermites have focused on using aluminum (Al) particles as the fuel. However, Al particles are sensitive to electrostatic discharge, friction, and mechanical impact, imposing a challenge for the safe handling and storage of Al-based thermites. Silicon (Si) is another attractive fuel for thermites because of its high-energy content, thin native oxide layer, and facile surface functionality. Several studies showed that the combustion properties of Si-based thermites are comparable to those of Al-based thermites. However, little is known about the ignition properties of Si-based thermites. In this work, we determined the reaction onset temperatures of mechanically mixed (MM) Si/Fe2O3 nanothermites and Si/Fe2O3 core/shell (CS) nanothermites using differential scanning calorimetry. The Si/Fe2O3 CS nanothermites were prepared by an electroless deposition method. We found that the Si/Fe2O3 CS nanoparticles (NPs) had a lower reaction onset temperature (∼550 °C) than the MM Si/Fe2O3 nanothermites (>650 °C). The onset temperature of the Si/Fe2O3 CS nanothermites is also insensitive to the size of the Si core NP. These results indicate that the interfacial contact quality between Si and Fe2O3 is the dominant factor for determining the ignition properties of thermites. Finally, the reaction onset temperature of the Si/Fe2O3 CS NPs is comparable to that of the commonly used Al-based nanothermites, suggesting that Si is an attractive fuel for thermites.
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Affiliation(s)
- Sidi Huang
- Department
of Mechanical Engineering and Department of Materials Science
and Engineering, Stanford University, Stanford, California 94305, United States
| | - Sili Deng
- Department
of Mechanical Engineering and Department of Materials Science
and Engineering, Stanford University, Stanford, California 94305, United States
| | - Yue Jiang
- Department
of Mechanical Engineering and Department of Materials Science
and Engineering, Stanford University, Stanford, California 94305, United States
| | - Jiheng Zhao
- Department
of Mechanical Engineering and Department of Materials Science
and Engineering, Stanford University, Stanford, California 94305, United States
| | - Xiaolin Zheng
- Department
of Mechanical Engineering and Department of Materials Science
and Engineering, Stanford University, Stanford, California 94305, United States
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