DocumentCode :
1668530
Title :
Fabrication and magnetic properties of electrospun Ti0.9V0.1O2 nanofibers
Author :
Ponhan, Wichaid ; Maensiri, Santi
Author_Institution :
Dept. of Phys., Khon Kaen Univ., Khon Kaen, Thailand
fYear :
2010
Firstpage :
511
Lastpage :
512
Abstract :
Ti0.9V0.1O2 nanofibers were fabricated by a simple electrospinning using a solution that contained poly(vinyl pyrrolidone) (PVP), Vanadyl acetyl-acetonate, and titanium(diisoproproxide) bis(2, 4-pentanedionate) 75 wt% in 2-propanol. The Ti0.9V0.1O2 nanofibers with average diameters of 76-86 nm were successfully obtained from calcination of the as-spun Ti0.9V0.1O2/PVP composite nanofibers at 400, 500 and 600°C in air for 3 h. The as-spun and calcined Ti0.9V0.1O2/PVP composite nanofibers were characterized by TG-DTA, SEM, and XRD. The results of XRD indicated that the calcined samples of Ti0.9V0.1O2 composite nanofibers at 400 and 500°C had the mixed phases of anatase and rutile TiO2 structure without any significant change in the structure affected by V substitution. However, an impurity of V2O5 was found in the samples calcined at 600°C. Room temperature magnetization results revealed a weak ferromagnetic behavior for the Ti0.9V0.1O2 samples and the specific magnetization decreased with increasing calcination temperature. The origin of ferromagnetism observed in the Ti0.9V0.1O2 nanofibers was also discussed.
Keywords :
X-ray diffraction; calcination; electrospinning; ferromagnetic materials; filled polymers; magnetisation; nanocomposites; nanotechnology; scanning electron microscopy; titanium compounds; SEM; TG-DTA; Ti0.9V0.1O2; XRD; calcination; composite nanofibers; electrospinning; electrospun nanofibers; magnetic properties; magnetization; poly(vinyl pyrrolidone); temperature 293 K to 298 K; temperature 600 degC; time 3 hour; vanadyl acetyl-acetonate; weak ferromagnetic behavior; Fabrication; Magnetic properties;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Nanoelectronics Conference (INEC), 2010 3rd International
Conference_Location :
Hong Kong
Print_ISBN :
978-1-4244-3543-2
Electronic_ISBN :
978-1-4244-3544-9
Type :
conf
DOI :
10.1109/INEC.2010.5424961
Filename :
5424961
Link To Document :
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