Facile synthesis of cobalt ferrite submicrospheres with tunable magnetic and electrocatalytic properties

Cui, Lijun, Guo, Peizhi, Zhang, Guoliang, Li, Qun, Wang, Rongyue, Zhou, Meng, Ran, Lina and Zhao, X. S. (2013) Facile synthesis of cobalt ferrite submicrospheres with tunable magnetic and electrocatalytic properties. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 423 170-177. doi:10.1016/j.colsurfa.2013.01.064


Author Cui, Lijun
Guo, Peizhi
Zhang, Guoliang
Li, Qun
Wang, Rongyue
Zhou, Meng
Ran, Lina
Zhao, X. S.
Title Facile synthesis of cobalt ferrite submicrospheres with tunable magnetic and electrocatalytic properties
Journal name Colloids and Surfaces A: Physicochemical and Engineering Aspects   Check publisher's open access policy
ISSN 0927-7757
1873-4359
Publication date 2013-04-01
Year available 2013
Sub-type Article (original research)
DOI 10.1016/j.colsurfa.2013.01.064
Open Access Status Not yet assessed
Volume 423
Start page 170
End page 177
Total pages 8
Place of publication Amsterdam, Netherlands
Publisher Elsevier
Language eng
Subject 3110 Surfaces and Interfaces
1606 Physical and Theoretical Chemistry
1505 Colloid and Surface Chemistry
Abstract Cobalt ferrite (CoFe2O4) submicrospheres with tunable structures were synthesized by a one-pot solvothermal method through adjusting iron precursors. CoFe2O4 submicrospheres were characterized by a series of technologies including X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier transform infrared spectrometry (FTIR), thermal gravity analysis (TGA) and vibrating sample magnetometry (VSM). It was found that single crystal CoFe2O4 submicrospheres were prepared from the synthesis system containing ferric chloride and showed ferromagnetic behavior at room temperature. However, polycrystal CoFe2O4 submicrospheres composed of CoFe2O4 nanocrystals were obtained from ferric nitrate system and displayed superparamagnetic behavior with a magnetization saturation value up to 45.2emu/g. CoFe2O4 spheres obtained from ferric chloride system showed better electrocatalytic performance toward simultaneous determination of dopamine and uric acid than polycrystal CoFe2O4 spheres. The formation mechanisms of CoFe2O4 submicrospheres as well as the structure-property relationship of the spheres were discussed based on the experimental results.
Keyword Cobalt ferrite
Submicrosphere
Magnetization
Electrocatalysis
Solvothermal synthesis
Q-Index Code C1
Q-Index Status Confirmed Code
Grant ID 21143006
11-2-4-2-(8)-jch
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Chemical Engineering Publications
Official 2014 Collection
 
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