Metal organic frameworks derived core-shell structured C@TiC nanocomposites with excellent microwave absorption performance
With aim to prepare nano-microwave absorption material with excellent microwave absorption performance, core-shell structured C@TiC nanocomposites with tunable nanostructures and morphologies were successfully synthesized through one-step pyrolysis of the Ti-based MOFs precursors at a low temperatur...
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| Format: | Article |
| Language: | English |
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Elsevier
2024-12-01
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| Series: | Open Ceramics |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666539524001640 |
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| author | Yan Wang Zhihe Xiao Jian Gu Weibin Sun Junyang Jin Xin Sun |
| author_facet | Yan Wang Zhihe Xiao Jian Gu Weibin Sun Junyang Jin Xin Sun |
| author_sort | Yan Wang |
| collection | DOAJ |
| description | With aim to prepare nano-microwave absorption material with excellent microwave absorption performance, core-shell structured C@TiC nanocomposites with tunable nanostructures and morphologies were successfully synthesized through one-step pyrolysis of the Ti-based MOFs precursors at a low temperature. Effects of various metal/linker ratio, solvent types and Hacac addition on the microstructures and properties of the C@TiC nanocomposites were thoroughly investigated, demonstrating that the TiC core-C shell structure could be effectively tailored. Compared to pure TiC nanoparticles, the C@TiC nanocomposites exhibited significantly improved microwave absorption performance, including the stronger RL peak of -35.64 dB (10.72 GHz) at 2.4 mm thicknesses and the enhanced effective microwave wave absorption width (EAB, RL≤-10 dB) spanning the entire C-band and X-band, which is ascribed to the better impedance matching and richer microwave loss mechanisms. As a result, C@TiC nanocomposites show great potential to be applied as absorbers with strong microwave absorption and wide absorption bandwidth. |
| format | Article |
| id | doaj-art-b5a58d62e27e48bdb4278fb943c82f27 |
| institution | OA Journals |
| issn | 2666-5395 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Open Ceramics |
| spelling | doaj-art-b5a58d62e27e48bdb4278fb943c82f272025-08-20T02:21:01ZengElsevierOpen Ceramics2666-53952024-12-012010070010.1016/j.oceram.2024.100700Metal organic frameworks derived core-shell structured C@TiC nanocomposites with excellent microwave absorption performanceYan Wang0Zhihe Xiao1Jian Gu2Weibin Sun3Junyang Jin4Xin Sun5National Key Laboratory of Scattering and Radiation, Beijing 100854, China; Beijing Institute of Environmental Features, Beijing 100854, China; Corresponding authors.National Key Laboratory of Scattering and Radiation, Beijing 100854, China; Beijing Institute of Environmental Features, Beijing 100854, ChinaJiangsu Collaborative Innovation Center For Advanced Inorganic Function Composites, Nanjing Tech University, Nanjing 211816, China; College of Materials Science and Engineering, Nanjing Tech University, Nanjing, 211816, China; Corresponding authors.National Key Laboratory of Scattering and Radiation, Beijing 100854, China; Beijing Institute of Environmental Features, Beijing 100854, ChinaCollege of Materials Science and Engineering, Nanjing Tech University, Nanjing, 211816, ChinaNational Key Laboratory of Scattering and Radiation, Beijing 100854, China; Beijing Institute of Environmental Features, Beijing 100854, ChinaWith aim to prepare nano-microwave absorption material with excellent microwave absorption performance, core-shell structured C@TiC nanocomposites with tunable nanostructures and morphologies were successfully synthesized through one-step pyrolysis of the Ti-based MOFs precursors at a low temperature. Effects of various metal/linker ratio, solvent types and Hacac addition on the microstructures and properties of the C@TiC nanocomposites were thoroughly investigated, demonstrating that the TiC core-C shell structure could be effectively tailored. Compared to pure TiC nanoparticles, the C@TiC nanocomposites exhibited significantly improved microwave absorption performance, including the stronger RL peak of -35.64 dB (10.72 GHz) at 2.4 mm thicknesses and the enhanced effective microwave wave absorption width (EAB, RL≤-10 dB) spanning the entire C-band and X-band, which is ascribed to the better impedance matching and richer microwave loss mechanisms. As a result, C@TiC nanocomposites show great potential to be applied as absorbers with strong microwave absorption and wide absorption bandwidth.http://www.sciencedirect.com/science/article/pii/S2666539524001640MOFsC@TiC-based nanoparticlesMicrowave absorption performanceHigh-temperature absorber |
| spellingShingle | Yan Wang Zhihe Xiao Jian Gu Weibin Sun Junyang Jin Xin Sun Metal organic frameworks derived core-shell structured C@TiC nanocomposites with excellent microwave absorption performance Open Ceramics MOFs C@TiC-based nanoparticles Microwave absorption performance High-temperature absorber |
| title | Metal organic frameworks derived core-shell structured C@TiC nanocomposites with excellent microwave absorption performance |
| title_full | Metal organic frameworks derived core-shell structured C@TiC nanocomposites with excellent microwave absorption performance |
| title_fullStr | Metal organic frameworks derived core-shell structured C@TiC nanocomposites with excellent microwave absorption performance |
| title_full_unstemmed | Metal organic frameworks derived core-shell structured C@TiC nanocomposites with excellent microwave absorption performance |
| title_short | Metal organic frameworks derived core-shell structured C@TiC nanocomposites with excellent microwave absorption performance |
| title_sort | metal organic frameworks derived core shell structured c tic nanocomposites with excellent microwave absorption performance |
| topic | MOFs C@TiC-based nanoparticles Microwave absorption performance High-temperature absorber |
| url | http://www.sciencedirect.com/science/article/pii/S2666539524001640 |
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