Effect of heating rate on morphology and structure of CoFe2O4 nanofibers

被引:34
作者
Pan, Weiwei [1 ]
Ma, Zhi [1 ]
Liu, Jinhong [1 ]
Liu, Qingfang [1 ]
Wang, Jianbo [1 ]
机构
[1] Lanzhou Univ, Inst Appl Magnet, Minist Educ, Key Lab Magnetism & Magnet Mat, Lanzhou 730000, Peoples R China
关键词
Ceramics; Fiber technology; Microstructure; Surfaces; NANOSTRUCTURES; FIBERS;
D O I
10.1016/j.matlet.2011.06.102
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Electrospinning is a novel technique used to fabricate nanometers to micrometers diameter polymeric and ceramic fibers. The morphology and structure of fibers which would be dominated by electrospinning process parameters and calcinations conditions are important when considering practical applications. This paper involves an investigation of how heating rate influence morphology and structure of CoFe2O4 nanofibers. The morphology of CoFe2O4 nanofibers changes from a continuous fibrous structure for low heating rate to a winding and packed crystallites nature for high heating rate, increasing heating rate also causes an increase in diameter. FTIR and XRD results demonstrate that PVP/CoFe2O4 composite nanofibers for all heating rate form CoFe2O4 cubic phase with very high crystallinity after calcinations. (C) 2011 Published by Elsevier B.V.
引用
收藏
页码:3269 / 3271
页数:3
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