Hollow Co9S8-carbon fiber hierarchical heterojunction with Schottky contacts for tunable microwave absorption
文献类型：期刊论文
| 作者 | Guo, Yiming1,2,3,4; Li, Xiaoxiao1,3,4 ; Ge, Daowen5; Lin, Yongxing3,4; Li, Xiangyang3,4; Liu, Gang3,4; Gong, Yi3,4; Zhang, Xian3,4; Tian, Xingyou3,4; Sun, Jun1,3,4
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| 刊名 | APPLIED SURFACE SCIENCE
 |
| 出版日期 | 2024-10-30 |
| 卷号 | 671 |
| 关键词 | Hollow Co 9 S 8 Carbon fiber Heterogeneous interface Schottky contacts Microwave absorption |
| ISSN号 | 0169-4332 |
| DOI | 10.1016/j.apsusc.2024.160708 |
| 通讯作者 | Sun, Jun(jsun@rntek.cas.cn) ; Chen, Lin(chenlin@issp.ac.cn) |
| 英文摘要 | Heterogeneous interface engineering of hollow hierarchical structures with Schottky contacts is an attractive approach for designing light weight and efficient microwave absorption (MA) materials. Herein, hollow Co9S8carbon fiber (CF) composites were prepared by solvothermal, electrostatic spinning, and pyrolysis methods. CF was used as the main chain and hollow Co9S8 derived from metal-organic frameworks (MOFs) was homogeneously embedded in it, which overcame the difficulties of the traditional template method and effectively avoided the particle agglomeration problem. The interface polarization relaxation process is improved by the construction of Co9S8-CF heterojunction with Schottky contacts, which effectively modulates the dielectric loss. The internal hollow macroporous cavity and CF with lightweight properties enhance the reflection attenuation of the internal cavity. In addition, the electromagnetic characteristics can be flexibly adjusted to achieve the tunable MA performance by varying the reaction parameters. As a result, the Co9S8-CF-3-700 exhibits optimum MA performance, with a reflection loss (RL) of -60.83 dB at 10.85 GHz and a thickness of 2.76 mm. The effective absorption bandwidth (EAB) extends to 5.6 GHz at a thickness of 2.19 mm. This research provides a promising approach to creating light weight and efficient MA materials with potential applications in radar and communication systems. |
| WOS关键词 | ELECTROMAGNETIC-WAVE ABSORPTION ; NANOCOMPOSITE FIBERS ; CARBON-FIBERS |
| 资助项目 | CASHIPS Director's Fund[YZJJZX202015] ; Anhui Science and Technology Major Project[202103a05020014] ; Team Project of Innovation and Entrepreneurship[LAY-2021-CXG-010] ; National Key Research and Development Program of China[2023YFB3812300] ; Sichuan Science and Technology Plan Project[21ZYCG003L] |
| WOS研究方向 | Chemistry ; Materials Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:001275310200001 |
| 出版者 | ELSEVIER |
| 资助机构 | CASHIPS Director's Fund ; Anhui Science and Technology Major Project ; Team Project of Innovation and Entrepreneurship ; National Key Research and Development Program of China ; Sichuan Science and Technology Plan Project |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/137310]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Sun, Jun; Chen, Lin |
| 作者单位 | 1.Anhui Inst Innovat Ind Technol, Luan Branch, Hefei 237100, Peoples R China 2.Univ Sci & Technol China, Hefei 230026, Peoples R China 3.Chinese Acad Sci, Hefei Inst Phys Sci, Inst Solid State Phys, Hefei 230031, Peoples R China 4.Chinese Acad Sci, Key Lab Photovolta & Energy Conservat Mat, Hefei 230031, Peoples R China 5.Anhui Construct Engn Inspect Technol Grp Co Ltd, Hefei 230061, Peoples R China |
| 推荐引用方式 GB/T 7714 | Guo, Yiming,Li, Xiaoxiao,Ge, Daowen,et al. Hollow Co9S8-carbon fiber hierarchical heterojunction with Schottky contacts for tunable microwave absorption[J]. APPLIED SURFACE SCIENCE,2024,671. |
| APA | Guo, Yiming.,Li, Xiaoxiao.,Ge, Daowen.,Lin, Yongxing.,Li, Xiangyang.,...&Chen, Lin.(2024).Hollow Co9S8-carbon fiber hierarchical heterojunction with Schottky contacts for tunable microwave absorption.APPLIED SURFACE SCIENCE,671. |
| MLA | Guo, Yiming,et al."Hollow Co9S8-carbon fiber hierarchical heterojunction with Schottky contacts for tunable microwave absorption".APPLIED SURFACE SCIENCE 671(2024). |
入库方式： OAI收割
来源：合肥物质科学研究院
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