Synthesis and characterization of hollow mesoporous BaFe12O19 spheres

被引：33

作者：

Xu, Xia ^{[1
,2
]}

Park, Jihoon ^{[1
,3
]}

Hong, Yang-Ki ^{[1
,3
]}

Lane, Alan M. ^{[1
,2
]}

机构：

[1] Univ Alabama, Ctr Mat Informat Technol, Tuscaloosa, AL 35487 USA

[2] Univ Alabama, Dept Chem & Biol Engn, Tuscaloosa, AL 35487 USA

[3] Univ Alabama, Dept Elect & Comp Engn, Tuscaloosa, AL 35487 USA

来源：

JOURNAL OF SOLID STATE CHEMISTRY | 2015年 / 222卷

关键词：

Mesoporous; Barium ferrite; Magnetic properties; Spray pyrolysis; Chemical etching; FACILE SYNTHESIS; SILICA SPHERES; MICROSPHERES; SIZE; NANOSTRUCTURES; NANOPARTICLES; NANOSPHERES; FE3O4;

D O I：

10.1016/j.jssc.2014.11.008

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A facile method is reported to synthesize hollow mesoporous BaFe12O19 spheres using a template-free chemical etching process. Hollow BaFe12O19 spheres were synthesized by conventional spray pyrolysis. The mesoporous structure is achieved by alkaline ethylene glycol etching at 185 degrees C, with the porosity controlled by the heating time. The hollow porous structure is confirmed by SEM, TEM, and FIB-FESEM characterization. The crystal structure and magnetic properties are not significantly affected after the chemical etching process. The formation mechanism of the porous structure is explained by grain boundary etching. (C) 2014 Elsevier Inc. All rights reserved.

引用

页码：84 / 89

页数：6

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