| Anisotropic Growth and Magnetic Properties of alpha ''-Fe16N2@C Nanocones | |
| Li, Yong1; Kuang, Qifeng1; Men, Xiaoling1; Wang, Shenggang1; Li, Da1; Choi, Chuljin2; Zhang, Zhidong1 | |
| Corresponding Author | Li, Da(dali@imr.ac.cn) ; Choi, Chuljin(cjchoi@kims.re.kr) |
| 2021-04-01 | |
| Source Publication | NANOMATERIALS
 |
| Volume | 11Issue:4Pages:12 |
| Abstract | alpha ''-Fe16N2 nanomaterials with a shape anisotropy for high coercivity performance are of interest in potential applications such as rare-earth-free permanent magnets, which are difficult to synthesize in situ anisotropic growth. Here, we develop a new and facile one-pot microemulsion method with Fe(CO)(5) as the iron source and tetraethylenepentamine (TEPA) as the N/C source at low synthesis temperatures to fabricate carbon-coated tetragonal alpha ''-Fe16N2 nanocones. Magnetocrystalline anisotropy energy is suggested as the driving force for the anisotropic growth of alpha ''-Fe16N2@C nanocones because the easy magnetization direction of tetragonal alpha ''-Fe16N2 nanocrystals is along the c axis. The alpha ''-Fe16N2@C nanocones agglomerate to form a fan-like microstructure, in which the thin ends of nanocones direct to its center, due to the magnetostatic energy. The lengths of alpha ''-Fe16N2@C nanocones are similar to 200 nm and the diameters vary from similar to 10 nm on one end to similar to 40 nm on the other end. Carbon shells with a thickness of 2-3 nm protect alpha ''-Fe16N2 nanocones from oxidation in air atmosphere. The alpha ''-Fe16N2@C nanocones synthesized at 433 K show a room-temperature saturation magnetization of 82.6 emu/g and a coercive force of 320 Oe. |
| Keyword | alpha ''-Fe16N2 permanent magnetic material one-dimensional nanocones core/shell structure anisotropic growth chemical solution method |
| Funding Organization | Future Materials Discovery Program through the National Research Foundation of Korea (NRF) - Ministry of Science and Technology and ICT ; National Natural Science Foundation of China ; National Key R&D Program of China from the ministry of Science and Technology of China |
| DOI | 10.3390/nano11040890 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | Future Materials Discovery Program through the National Research Foundation of Korea (NRF) - Ministry of Science and Technology and ICT[2016M3D1A1027835] ; National Natural Science Foundation of China[51971221] ; National Natural Science Foundation of China[52031014] ; National Key R&D Program of China from the ministry of Science and Technology of China[2017YFA0206302] ; National Key R&D Program of China from the ministry of Science and Technology of China[2017YFA0700702] |
| WOS Research Area | Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics |
| WOS Subject | Chemistry, Multidisciplinary ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied |
| WOS ID | WOS:000643430400001 |
| Publisher | MDPI |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/162447 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Li, Da; Choi, Chuljin |
| Affiliation | 1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China 2.Korea Inst Mat Sci, 797 Changwondaero, Chang Won 51508, Gyeongnam, South Korea |
| Recommended Citation GB/T 7714 | Li, Yong,Kuang, Qifeng,Men, Xiaoling,et al. Anisotropic Growth and Magnetic Properties of alpha ''-Fe16N2@C Nanocones[J]. NANOMATERIALS,2021,11(4):12. |
| APA | Li, Yong.,Kuang, Qifeng.,Men, Xiaoling.,Wang, Shenggang.,Li, Da.,...&Zhang, Zhidong.(2021).Anisotropic Growth and Magnetic Properties of alpha ''-Fe16N2@C Nanocones.NANOMATERIALS,11(4),12. |
| MLA | Li, Yong,et al."Anisotropic Growth and Magnetic Properties of alpha ''-Fe16N2@C Nanocones".NANOMATERIALS 11.4(2021):12. |
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