Salt template assisted preparation of magnetic modified nitrogen doping hollow carbon microcapsules for broadband microwave absorption
文献类型：期刊论文
| 作者 | Xu, Dongwei1; Zhang, Mingju1; Shen, Zhihao1; Wang, Chao1; Chen, Duo1; Wei, Yuxuan1; Zeng, You2; Zhao, Biao3; Xiong, Xuhai4; Chen, Ping5 |
| 刊名 | JOURNAL OF ALLOYS AND COMPOUNDS
 |
| 出版日期 | 2025-02-05 |
| 卷号 | 1014页码:9 |
| 关键词 | Salt-template Hollow carbon microcapsule Interface polarization Microwave absorption |
| ISSN号 | 0925-8388 |
| DOI | 10.1016/j.jallcom.2025.178721 |
| 通讯作者 | Zeng, You(yzeng@imr.ac.cn) ; Zhao, Biao(zhao_biao@fudan.edu.cn) ; Chen, Ping(chenping_898@126.com) |
| 英文摘要 | The rational structural design and precise compositional regulation of lightweight and broadband carbon-based absorbing materials is an urgent task at present to deal with the complex electromagnetic environment. The soluble salt template assisted preparation technology holds good feasibility for constructing unique hollow carbon-based microwave absorbents due to their reusability and economy of salt templates. Nevertheless, magnetic modified nitrogen doping hollow carbon microcapsules fabricated by employing salt-template technique have not been explored. Herein, we adopt a green and low cost NaCl soluble salt template assisted synthesis strategy to universally fabricate 3D unique hollow carbon-based microwave materials loaded with precursors of magnetic particles. Following the high-temperature pyrolysis and wash desalting template, we have successfully achieved mass preparation of magnetic modified nitrogen doping hollow carbon microcapsules. Benefiting from the unique chemical component dominance and distinctive structural merits, the optimized Ni magnetic modified nitrogen doping hollow carbon microcapsules (Ni@N-HCNs) delivered extremely outstanding microwave absorption performance (MAP), including an optimal minimum reflection loss value (RLmin) of -37.7 dB and an effective absorption bandwidth of 5.5 GHz under a filling level of only 5 wt%. More excitingly, the widest effective absorption bandwidth could cover up to 7.87 GHz (10.03-18.0 GHz) at a thin matching thickness of 2.6 mm. Due to the large-scale production and simple preparation process, Ni@N-HCNs composites might be considered as one of the most competitive candidates for the design of lightweight and high performance microwave absorbents. |
| 资助项目 | Key Scientific Research Project of Higher Education Institutions in Henan Province[23A430006] ; Open fund of Henan Key Laboratory of Aeronautical Materials and Application Technology[ZHKF-240101] ; Natural Science Foundation of Henan Province[232300420332] ; Youth Research Funds Plan of Zhengzhou University of Aeronautics[23ZHQN01005] ; Science and Technology Project in Henan Province[242102231013] |
| WOS研究方向 | Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001405267100001 |
| 出版者 | ELSEVIER SCIENCE SA |
| 资助机构 | Key Scientific Research Project of Higher Education Institutions in Henan Province ; Open fund of Henan Key Laboratory of Aeronautical Materials and Application Technology ; Natural Science Foundation of Henan Province ; Youth Research Funds Plan of Zhengzhou University of Aeronautics ; Science and Technology Project in Henan Province |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Zeng, You; Zhao, Biao; Chen, Ping |
| 作者单位 | 1.Zhengzhou Univ Aeronaut, Sch Mat Sci & Engn, Henan Key Lab Aeronaut Mat & Applicat Technol, Zhengzhou 450046, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 3.Fudan Univ, Lab Adv Mat, Shanghai 200438, Peoples R China 4.Shenyang Aerosp Univ, Liaoning Key Lab Adv Polymer Matrix Composites, Shenyang 110136, Peoples R China 5.Dalian Univ Technol, Sch Chem Engn, Dalian 116024, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, Dongwei,Zhang, Mingju,Shen, Zhihao,et al. Salt template assisted preparation of magnetic modified nitrogen doping hollow carbon microcapsules for broadband microwave absorption[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2025,1014:9. |
| APA | Xu, Dongwei.,Zhang, Mingju.,Shen, Zhihao.,Wang, Chao.,Chen, Duo.,...&Chen, Ping.(2025).Salt template assisted preparation of magnetic modified nitrogen doping hollow carbon microcapsules for broadband microwave absorption.JOURNAL OF ALLOYS AND COMPOUNDS,1014,9. |
| MLA | Xu, Dongwei,et al."Salt template assisted preparation of magnetic modified nitrogen doping hollow carbon microcapsules for broadband microwave absorption".JOURNAL OF ALLOYS AND COMPOUNDS 1014(2025):9. |
入库方式： OAI收割
来源：金属研究所
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