Synthesis of nanocrystalline spinel cofe2o4 via a polymer-pyrolysis route
文献类型：期刊论文
| 作者 | Liu, XM; Fu, SY; Xiao, HM; Huang, CJ |
| 刊名 | Physica b-condensed matter
 |
| 出版日期 | 2005-12-15 |
| 卷号 | 370期号:1-4页码:14-21 |
| ISSN号 | 0921-4526 |
| 关键词 | Cobalt ferrite Polyacrylate salt Pyrolysis Magnetization Coercivity |
| DOI | 10.1016/j.physb.2005.08.030 |
| 通讯作者 | Fu, sy() |
| 英文摘要 | Nanocrystalline cofe2o4 spinel ferrites were synthesized via the pyrolysis of polyacrylate salt precursors prepared by in situ polymerization of metal salts and acrylic acid. the pyrolytic behaviors of the polymeric precursors were analyzed by use of simultaneous thermogravimetric and differential thermal analysis (tg-dta). the structural characteristics of the calcined products were obtained by powder x-ray diffraction (xrd), infrared spectroscopy (ir) and transmission electron microscope (tem). the results revealed that cobalt ferrites had nano-sized morphology and good crystallinity even if calcined at moderate temperature like 500 degrees c for 3 h. the average size of nanocrystalline cobalt ferrites ranged from 20 to 30 nm with a narrow size distribution, while the particle size increased with the increase of the calcination temperature. magnetic properties were obtained at room temperature using a vibrating sample magnetometer. the samples exhibited hysteresis loop typical of magnetic behaviors, indicating that the presence of an ordered magnetic structure could exist in the mixed spinel system. the as-calcined cobalt ferrites at 500 degrees c exhibited the highest magnetization value of 77.4 emu/g at 10 koe, while the highest remanence and coercivity of 35.6 emu/g and 1445 oe, respectively, for those calcined at 700 c were obtained. (c) 2005 elsevier b.v. all rights reserved. |
| WOS关键词 | COBALT FERRITE PARTICLES ; MAGNETIC-PROPERTIES ; CARBON NANOTUBES ; SOL-GEL ; NANOPARTICLES ; NANOWIRES ; CO ; PRECURSORS |
| WOS研究方向 | Physics |
| WOS类目 | Physics, Condensed Matter |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCIENCE BV |
| WOS记录号 | WOS:000234057800003 |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2377730 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Fu, SY |
| 作者单位 | 1.Chinese Acad Sci, Tech Inst Phys & Chem, Beijing 100080, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, XM,Fu, SY,Xiao, HM,et al. Synthesis of nanocrystalline spinel cofe2o4 via a polymer-pyrolysis route[J]. Physica b-condensed matter,2005,370(1-4):14-21. |
| APA | Liu, XM,Fu, SY,Xiao, HM,&Huang, CJ.(2005).Synthesis of nanocrystalline spinel cofe2o4 via a polymer-pyrolysis route.Physica b-condensed matter,370(1-4),14-21. |
| MLA | Liu, XM,et al."Synthesis of nanocrystalline spinel cofe2o4 via a polymer-pyrolysis route".Physica b-condensed matter 370.1-4(2005):14-21. |
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来源：中国科学院大学
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