Study on the synthesis and magnetic properties of rod-shaped NiFe2O4 ferrites via precipitation-toptactic reaction employing Na2C2O4 and NaOH as precipitants

被引：5

作者：

Cao, Xiaohui ^{[1
]}

Guo, Xiaoyu ^{[1
]}

Dong, Hongfei ^{[1
]}

Meng, Jinhong ^{[1
,2
]}

Sun, Jie ^{[1
]}

机构：

[1] Shenyang Ligong Univ, Sch Environm & Chem Engn, Shenyang 110159, Peoples R China

[2] Beijing Univ Chem Technol, State Key Lab Chem Resource Engn, Beijing 100029, Peoples R China

来源：

MATERIALS RESEARCH BULLETIN | 2014年 / 49卷

基金：

中国国家自然科学基金;

关键词：

Magnetic materials; Chemical synthesis; X-ray diffraction; Electron microscopy; Magnetic properties; THERMAL-DECOMPOSITION; CHEMICAL METHOD; NICKEL FERRITE; GAMMA-FEOOH; PARTICLES; NANOPARTICLES; TEMPERATURE; OXIDES; COBALT;

D O I：

10.1016/j.materresbull.2013.08.017

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Rod-shaped NiFe2O4 ferrites were prepared by precipitation-toptactic reaction with the aid of pod-like gamma-FeOOH template using Na2C2O4 and NaOH as precipitants. The NiFe2O4 ferrite prepared using Na2C2O4 precipitant experienced the formation of gamma-Fe2O3 and NiO through dehydroxylation of gamma-FeOOH and decomposition of nickel salt, transition of gamma-Fe2O3 into alpha-Fe2O3 and production of NiFe2O4 from the reaction of NiO and alpha-Fe2O3. The NiFe2O4 ferrite prepared using NaOH precipitant included the formation of gamma-Fe2O3 and NiO through dehydroxylation of gamma-FeOOH, decomposition of nickel salt and production of NiFe2O4 from the reaction of NiO and gamma-Fe2O3. The transition of gamma-Fe2O3 into alpha-Fe2O3 was found in the synthesis process of NiFe2O4 ferrite prepared using Na2C2O4 precipitant. It was found that the NiFe2O4 ferrite prepared using NaOH precipitant had larger length to diameter ratio and better crystallinity, and higher coercivity and lower saturation magnetization. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：229 / 236

页数：8

共 28 条

[1] Magnetic properties of nanosize NiFe2O4 particles synthesized by sol-gel auto combustion method [J].

Azadmanjiri, J. ;

Ebrahimi, S. A. Seyyed ;

Salehani, H. K. .

CERAMICS INTERNATIONAL, 2007, 33 (08) :1623-1625

[2] Synthesis of rod-shaped NiFe2O4 spinel ferrites by the precipitation-toptactic reaction and investigation of magnetic properties [J].

Cao, Xiaohui ;

Dong, Hongfei ;

Meng, Jinhong ;

Sun, Jie .

SOLID STATE SCIENCES, 2011, 13 (09) :1804-1808

[3] Synthesis process of Ba-ferrites from α-FeOOH and γ-FeOOH and investigation of magnetic properties [J].

Cao XiaoHui ;

Tan YuZhuo ;

Meng JinHong ;

Sun Jie .

CHINESE SCIENCE BULLETIN, 2010, 55 (18) :1952-1956

[4]

Delegard C.H., 2002, CRITICAL MASS LAB SO

[5] Magnetic properties of NiFe2O4 nanoparticles produced by a new chemical method [J].

Duque, J. G. S. ;

Souza, E. A. ;

Meneses, C. T. ;

Kubota, L. .

PHYSICA B-CONDENSED MATTER, 2007, 398 (02) :287-290

[6] Characterization of nanocrystalline γ-Fe2O3 prepared by wet chemical method [J].

Ennas, G ;

Marongiu, G ;

Musinu, A ;

Falqui, A ;

Ballirano, P ;

Caminiti, R .

JOURNAL OF MATERIALS RESEARCH, 1999, 14 (04) :1570-1575

[7] Non-isothermal decomposition of NiC2O4-FeC2O4 mixture aiming at the production of NiFe2O4 [J].

Gabal, MA .

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 2003, 64 (08) :1375-1385

[8] Finite size effects on the structural and magnetic properties of sol-gel synthesized NiFe2O4 powders [J].

George, M ;

John, AM ;

Nair, SS ;

Joy, PA ;

Anantharaman, MR .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2006, 302 (01) :190-195

[9]

Han J.Y., 1997, CHEM J CHINESE U, V19, P270

[10] The preparation and characterization of quadrate NiFe2O4/polyaniline nanocomposites [J].

Hu, Zhong-ai ;

Zhao, Hong-xiao ;

Kong, Chao ;

Yang, Yu-ying ;

Shang, Xiu-li ;

Ren, Li-jun ;

Wang, Yan-peng .

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS, 2006, 17 (11) :859-863

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