| Nitrogen-doped graphene layer-encapsulated NiFe bimetallic nanoparticles synthesized by an arc discharge method for a highly efficient microwave absorber | |
| Qu, Xinghao1; Zhou, Yuanliang1; Li, Xiyang1; Javid, Muhammad1; Huang, Feirong1; Zhang, Xuefeng2; Dong, Xinglong1; Zhang, Zhidong3 | |
| Corresponding Author | Dong, Xinglong(dongxl@dlut.edu.cn) ; Zhang, Zhidong(zdzhang@imr.ac.cn) |
| 2020-03-07 | |
| Source Publication | INORGANIC CHEMISTRY FRONTIERS
 |
| ISSN | 2052-1553 |
| Volume | 7Issue:5Pages:1148-1160 |
| Abstract | The development of inexpensive yet high-performance microwave absorbers to attenuate electromagnetic pollution stemming from the wide application of various electrical devices is of great significance. Magnetic NiFe alloys with relatively high permeability and multiple magnetic resonances are advantageous to broaden the absorption bandwidth. Benefiting from the coatings of carbon materials, the NiFe@C composites can efficiently increase the capability of oxidation/corrosion resistance. Meanwhile, the formation of numerous hetero-interfaces between C and NiFe alloys leads to interfacial polarization. However, it is still difficult to couple their relatively strong dielectric loss with magnetic loss, resulting in impedance mismatching. In this work, NiFe alloy nanoparticles embedded in nitrogen-doped graphene layers are successfully fabricated under a mixed gas of CH4/N-2/Ar. By controlling the number of graphene layers and nitrogen doping level, the overall impedance can be effectively ameliorated. Experimental results indicate that the minimum reflection loss (R) can reach -46.89 dB at 11.96 GHz, accompanied by an effective absorption bandwidth of more than 4.1 GHz. Our work will advance the study of magnetic alloys/N-doped graphene composites for microwave absorption. |
| Funding Organization | National Natural Science Foundation of China |
| DOI | 10.1039/c9qi01577a |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China[51331006] ; National Natural Science Foundation of China[51271044] |
| WOS Research Area | Chemistry |
| WOS Subject | Chemistry, Inorganic & Nuclear |
| WOS ID | WOS:000519117700005 |
| Publisher | ROYAL SOC CHEMISTRY |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/137755 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Dong, Xinglong; Zhang, Zhidong |
| Affiliation | 1.Dalian Univ Technol, Key Lab Mat Modificat Laser Ion & Electron Beams, Sch Mat Sci & Engn, Dalian 116023, Peoples R China 2.Hangzhou DianZi Univ, Inst Adv Magnet Mat, Hangzhou 310012, Peoples R China 3.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110015, Liaoning, Peoples R China |
| Recommended Citation GB/T 7714 | Qu, Xinghao,Zhou, Yuanliang,Li, Xiyang,et al. Nitrogen-doped graphene layer-encapsulated NiFe bimetallic nanoparticles synthesized by an arc discharge method for a highly efficient microwave absorber[J]. INORGANIC CHEMISTRY FRONTIERS,2020,7(5):1148-1160. |
| APA | Qu, Xinghao.,Zhou, Yuanliang.,Li, Xiyang.,Javid, Muhammad.,Huang, Feirong.,...&Zhang, Zhidong.(2020).Nitrogen-doped graphene layer-encapsulated NiFe bimetallic nanoparticles synthesized by an arc discharge method for a highly efficient microwave absorber.INORGANIC CHEMISTRY FRONTIERS,7(5),1148-1160. |
| MLA | Qu, Xinghao,et al."Nitrogen-doped graphene layer-encapsulated NiFe bimetallic nanoparticles synthesized by an arc discharge method for a highly efficient microwave absorber".INORGANIC CHEMISTRY FRONTIERS 7.5(2020):1148-1160. |
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