Investigation of Synthesis and Magnetic Properties of Rod-Shaped CoFe2O4 via Precipitation-Topotactic Reaction Employing α-FeOOH and γ-FeOOH As Templates

被引：7

作者：

Cao, Xiaohui ^{[1
]}

Dong, Hongfei ^{[1
]}

Tan, Yuzhuo ^{[1
]}

Meng, Jinhong ^{[1
,2
]}

机构：

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

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

来源：

JOURNAL OF ELECTRONIC MATERIALS | 2018年 / 47卷 / 05期

基金：

中国国家自然科学基金;

关键词：

Rod-shaped CoFe2O4; chemical precipitation-topotactic reaction; calcination; crystallinity; magnetic properties; TOPTACTIC REACTION; HIGH-COERCIVITY; FERRITE; PARTICLES; NANOCRYSTALS; NANORODS;

D O I：

10.1007/s11664-018-6165-1

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Rod-shaped CoFe2O4 was prepared by chemical precipitation-topotactic reaction method, and in this preparation needle-like gamma-FeOOH and alpha-FeOOH were synthesized to use as template materials. The evolution of phase and morphology in the process of calcination exhibits that alpha-FeOOH and gamma-FeOOH experienced different routes to form the alpha-Fe2O3 middle phase with different crystallinity and morphology. The synthesis process of CoFe2O4 revealed that the crystallinity, purity and morphology of CoFe2O4 depend on the alpha-Fe2O3 middle phase. The magnetic measurement showed that the CoFe2O4 prepared from alpha-FeOOH has higher saturation magnetization and coercivity, and the crystallinity and morphology may play important roles in achieving a better magnetic performance.

引用

页码：2920 / 2928

页数：9

共 35 条

[1] Mn-Zn ferrite nanoparticles for ferrofluid preparation: Study on thermal-magnetic properties [J].

Arulmurugan, R ;

Vaidyanathan, G ;

Sendhilnathan, S ;

Jeyadevan, B .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2006, 298 (02) :83-94

[2] Controlled Growth of Monodisperse Self-Supported Superparamagnetic Nanostructures of Spherical and Rod-Like CoFe2O4 Nanocrystals [J].

Bao, Ningzhong ;

Shen, Liming ;

Wang, Yu-Hsiang A. ;

Ma, Jianxing ;

Mazumdar, Dipanjan ;

Gupta, Arunava .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2009, 131 (36) :12900-+

[3]

Blundell S., 2001, MAGNETISM CONDENSED

[4] Synthesis of rod-shaped BaCoxTixFe12-2xO19 by precipitation-topactic reaction method and investigation of magnetic properties [J].

Cao, Xiaohui ;

Dong, Hongfei ;

Xu, Yangyang ;

Meng, Jinhong ;

Sun, Jie .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2017, 441 :598-603

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

Cao, Xiaohui ;

Guo, Xiaoyu ;

Dong, Hongfei ;

Meng, Jinhong ;

Sun, Jie .

MATERIALS RESEARCH BULLETIN, 2014, 49 :229-236

[6] 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

[7] Synthesis of high-coercivity cobalt ferrite nanocrystals [J].

Cedeno-Mattei, Y. ;

Perales-Perez, O. .

MICROELECTRONICS JOURNAL, 2009, 40 (4-5) :673-676

[8] Size and crystallinity-dependent magnetic properties of CoFe2O4 nanocrystals [J].

Chia, C. H. ;

Zakaria, S. ;

Yusoff, M. ;

Goh, S. C. ;

Haw, C. Y. ;

Ahmadi, Sh. ;

Huang, N. M. ;

Lim, H. N. .

CERAMICS INTERNATIONAL, 2010, 36 (02) :605-609

[9]

Cullity B D, 2001, Elements of X-Ray Diffraction, V3rd

[10] ACICULAR GAMMA-FE2O3 PARTICLES SURFACE-COATED WITH BARIUM FERRITE [J].

DENG, MC ;

HSU, SL ;

CHIN, TS .

IEEE TRANSACTIONS ON MAGNETICS, 1992, 28 (05) :2385-2387

← 1 2 3 4 →