A Facile Preparation and Energetic Characteristics of the Core/Shell CoFe<sub>2</sub>O<sub>4</sub>/Al Nanowires Thermite Film
In this study, CoFe<sub>2</sub>O<sub>4</sub> is selected for the first time to synthesize CoFe<sub>2</sub>O<sub>4</sub>/Al nanothermite films via an integration of nano-Al with CoFe<sub>2</sub>O<sub>4</sub> nanowires (NWs), whic...
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| Format: | Article |
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MDPI AG
2020-05-01
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| Series: | Micromachines |
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| Online Access: | https://www.mdpi.com/2072-666X/11/5/516 |
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| author | Chunpei Yu Wei Ren Ganggang Wu Wenchao Zhang Bin Hu Debin Ni Zilong Zheng Kefeng Ma Jiahai Ye Chenguang Zhu |
| author_facet | Chunpei Yu Wei Ren Ganggang Wu Wenchao Zhang Bin Hu Debin Ni Zilong Zheng Kefeng Ma Jiahai Ye Chenguang Zhu |
| author_sort | Chunpei Yu |
| collection | DOAJ |
| description | In this study, CoFe<sub>2</sub>O<sub>4</sub> is selected for the first time to synthesize CoFe<sub>2</sub>O<sub>4</sub>/Al nanothermite films via an integration of nano-Al with CoFe<sub>2</sub>O<sub>4</sub> nanowires (NWs), which can be prepared through a facile hydrothermal-annealing route. The resulting nanothermite film demonstrates a homogeneous structure and an intense contact between the Al and CoFe<sub>2</sub>O<sub>4</sub> NWs at the nanoscale. In addition, both thermal analysis and laser ignition test reveal the superb energetic performances of the prepared CoFe<sub>2</sub>O<sub>4</sub>/Al NWs nanothermite film. Within different thicknesses of nano-Al for the CoFe<sub>2</sub>O<sub>4</sub>/Al NWs nanothermite films investigated here, the maximum heat output has reached as great as 2100 J·g<sup>−1</sup> at the optimal thickness of 400 nm for deposited Al. Moreover, the fabrication strategy for CoFe<sub>2</sub>O<sub>4</sub>/Al NWs is also easy and suitable for diverse thermite systems based upon other composite metal oxides, such as MnCo<sub>2</sub>O<sub>4</sub> and NiCo<sub>2</sub>O<sub>4</sub>. Importantly, this method has the featured advantages of simple operation and compatibility with microsystems, both of which may further facilitate potential applications for functional energetic chips. |
| first_indexed | 2024-03-10T19:44:09Z |
| format | Article |
| id | doaj.art-c970eabccfb84587a20d85ec2b54976b |
| institution | Directory Open Access Journal |
| issn | 2072-666X |
| language | English |
| last_indexed | 2024-03-10T19:44:09Z |
| publishDate | 2020-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Micromachines |
| spelling | doaj.art-c970eabccfb84587a20d85ec2b54976b2023-11-20T01:01:49ZengMDPI AGMicromachines2072-666X2020-05-0111551610.3390/mi11050516A Facile Preparation and Energetic Characteristics of the Core/Shell CoFe<sub>2</sub>O<sub>4</sub>/Al Nanowires Thermite FilmChunpei Yu0Wei Ren1Ganggang Wu2Wenchao Zhang3Bin Hu4Debin Ni5Zilong Zheng6Kefeng Ma7Jiahai Ye8Chenguang Zhu9School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, ChinaShaanxi Applied Physics and Chemistry Research Institute, Xi’an 710061, ChinaSchool of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, ChinaSchool of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, ChinaSchool of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, ChinaShaanxi Applied Physics and Chemistry Research Institute, Xi’an 710061, ChinaSchool of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, ChinaSchool of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, ChinaSchool of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, ChinaSchool of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, ChinaIn this study, CoFe<sub>2</sub>O<sub>4</sub> is selected for the first time to synthesize CoFe<sub>2</sub>O<sub>4</sub>/Al nanothermite films via an integration of nano-Al with CoFe<sub>2</sub>O<sub>4</sub> nanowires (NWs), which can be prepared through a facile hydrothermal-annealing route. The resulting nanothermite film demonstrates a homogeneous structure and an intense contact between the Al and CoFe<sub>2</sub>O<sub>4</sub> NWs at the nanoscale. In addition, both thermal analysis and laser ignition test reveal the superb energetic performances of the prepared CoFe<sub>2</sub>O<sub>4</sub>/Al NWs nanothermite film. Within different thicknesses of nano-Al for the CoFe<sub>2</sub>O<sub>4</sub>/Al NWs nanothermite films investigated here, the maximum heat output has reached as great as 2100 J·g<sup>−1</sup> at the optimal thickness of 400 nm for deposited Al. Moreover, the fabrication strategy for CoFe<sub>2</sub>O<sub>4</sub>/Al NWs is also easy and suitable for diverse thermite systems based upon other composite metal oxides, such as MnCo<sub>2</sub>O<sub>4</sub> and NiCo<sub>2</sub>O<sub>4</sub>. Importantly, this method has the featured advantages of simple operation and compatibility with microsystems, both of which may further facilitate potential applications for functional energetic chips.https://www.mdpi.com/2072-666X/11/5/516nanoenergetic materialsnanothermitecomposite metal oxidenanowires structurecore/shellenergy release |
| spellingShingle | Chunpei Yu Wei Ren Ganggang Wu Wenchao Zhang Bin Hu Debin Ni Zilong Zheng Kefeng Ma Jiahai Ye Chenguang Zhu A Facile Preparation and Energetic Characteristics of the Core/Shell CoFe<sub>2</sub>O<sub>4</sub>/Al Nanowires Thermite Film Micromachines nanoenergetic materials nanothermite composite metal oxide nanowires structure core/shell energy release |
| title | A Facile Preparation and Energetic Characteristics of the Core/Shell CoFe<sub>2</sub>O<sub>4</sub>/Al Nanowires Thermite Film |
| title_full | A Facile Preparation and Energetic Characteristics of the Core/Shell CoFe<sub>2</sub>O<sub>4</sub>/Al Nanowires Thermite Film |
| title_fullStr | A Facile Preparation and Energetic Characteristics of the Core/Shell CoFe<sub>2</sub>O<sub>4</sub>/Al Nanowires Thermite Film |
| title_full_unstemmed | A Facile Preparation and Energetic Characteristics of the Core/Shell CoFe<sub>2</sub>O<sub>4</sub>/Al Nanowires Thermite Film |
| title_short | A Facile Preparation and Energetic Characteristics of the Core/Shell CoFe<sub>2</sub>O<sub>4</sub>/Al Nanowires Thermite Film |
| title_sort | facile preparation and energetic characteristics of the core shell cofe sub 2 sub o sub 4 sub al nanowires thermite film |
| topic | nanoenergetic materials nanothermite composite metal oxide nanowires structure core/shell energy release |
| url | https://www.mdpi.com/2072-666X/11/5/516 |
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