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Synthesis and characterization of CoFe2O4 magnetic particles prepared by co-precipitation method: Effect of mixture procedures of initial solution

文献类型：期刊论文

作者Wang, Jing1,2; Deng, Tong2; Lin, Wong1; Yang, Caiqin1; Zhan, Wenhong1
刊名JOURNAL OF ALLOYS AND COMPOUNDS
出版日期2008-02-14
卷号450期号:1-2页码:532-539
关键词CoFe2O4 Mossbauer average size X-ray diffraction magnetic measurement
ISSN号0925-8388
其他题名J. Alloy. Compd.
中文摘要CoFe2O4 magnetic particles were prepared by co-precipitation method in 60 degrees C homogeneous aqueous solution without any subsequent heat treatment. It was found that the mixing procedure and Fe2+/Fe3+ ratio of initial solution were critical in the preparation of CoFe2O4 particles in particle size, magnetization characters, uniformity in particle size and even cation distribution in spinel structure. Two different procedures were used to precipitate CoFe2O4 magnetic particles. Evidenced by XRD, Mossbauer analyses and magnetization determination, particles in comparative uniformity average size were obtained in procedure A, denoted as normal pH regulation procedure, in which NaOH solution was dropped into the mixture solution of iron ions, and with the decreasing in Fe2+/Fe3+ ratio of initial solution, the particle size decreased, which followed the same rule of diversification in saturation magnetization. Uniformity in particle size lowered when procedure B, referred to as reverse pH regulation procedure, where ferrous and cobalt ions were dropped into alkaline solution, was used to precipitate CoFe2O4, In both procedures, with the decreasing in Fe2+/Fe3+ ratio of initial solution, the saturation magnetization decreased, while the magnetic coercivity decreased but increased sharply when Fe2+/Fe3+ ratio of initial solution was 0. (C) 2007 Elsevier B.V. All rights reserved.
英文摘要CoFe2O4 magnetic particles were prepared by co-precipitation method in 60 degrees C homogeneous aqueous solution without any subsequent heat treatment. It was found that the mixing procedure and Fe2+/Fe3+ ratio of initial solution were critical in the preparation of CoFe2O4 particles in particle size, magnetization characters, uniformity in particle size and even cation distribution in spinel structure. Two different procedures were used to precipitate CoFe2O4 magnetic particles. Evidenced by XRD, Mossbauer analyses and magnetization determination, particles in comparative uniformity average size were obtained in procedure A, denoted as normal pH regulation procedure, in which NaOH solution was dropped into the mixture solution of iron ions, and with the decreasing in Fe2+/Fe3+ ratio of initial solution, the particle size decreased, which followed the same rule of diversification in saturation magnetization. Uniformity in particle size lowered when procedure B, referred to as reverse pH regulation procedure, where ferrous and cobalt ions were dropped into alkaline solution, was used to precipitate CoFe2O4, In both procedures, with the decreasing in Fe2+/Fe3+ ratio of initial solution, the saturation magnetization decreased, while the magnetic coercivity decreased but increased sharply when Fe2+/Fe3+ ratio of initial solution was 0. (C) 2007 Elsevier B.V. All rights reserved.
WOS标题词Science & Technology ; Physical Sciences ; Technology
类目[WOS]Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
研究领域[WOS]Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
关键词[WOS]COBALT FERRITE NANOPARTICLES
收录类别SCI
原文出处://WOS:000252860900092
语种英语
WOS记录号WOS:000252860900092
公开日期2013-10-08
版本出版稿
源URL[http://ir.ipe.ac.cn/handle/122111/2856]  
专题过程工程研究所_研究所（批量导入）
作者单位1.Hebei Med Univ, Sch Pharmaceut Sci, Shijiazhuang 050017, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, Beijing, Peoples R China
推荐引用方式
GB/T 7714		 Wang, Jing,Deng, Tong,Lin, Wong,et al. Synthesis and characterization of CoFe2O4 magnetic particles prepared by co-precipitation method: Effect of mixture procedures of initial solution[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2008,450(1-2):532-539.
APA Wang, Jing,Deng, Tong,Lin, Wong,Yang, Caiqin,&Zhan, Wenhong.(2008).Synthesis and characterization of CoFe2O4 magnetic particles prepared by co-precipitation method: Effect of mixture procedures of initial solution.JOURNAL OF ALLOYS AND COMPOUNDS,450(1-2),532-539.
MLA Wang, Jing,et al."Synthesis and characterization of CoFe2O4 magnetic particles prepared by co-precipitation method: Effect of mixture procedures of initial solution".JOURNAL OF ALLOYS AND COMPOUNDS 450.1-2(2008):532-539.

入库方式： OAI收割

来源：过程工程研究所

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