Preparation and characterization of barium titanate nanofibers by electrospinning

Panda, PK and Sahoo, B (2012) Preparation and characterization of barium titanate nanofibers by electrospinning. Ceramic International, 38 (6). pp. 5189-5193.

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Abstract

PVP–BaTiO3 composite nanofibers were successfully prepared by electrospinning and pure BaTiO3 fibers were produced after calcination at 1000 8C. A homogeneous viscous solution of barium acetate + titanium acetate/titanium isopropoxide in poly vinyl pyrrolidone (PVP) was prepared by varying PVP concentration in the range of 8–12%. The above sols were electrospun at 9 kV DC by maintaining tip to collector distance (TCD) of 7 cm. The electrospun fibers were calcined at 1000 8C for 2 h. Thermo gravimetric analysis (TGA) of the fibers indicates the complete decomposition of organics below 700 8C with 45% weight loss. Scanning electron microscopy (SEM) study shows the fibers cylindrical, smooth with diameters in the range of 50–400 nm and the aspect ratio >1000. The average diameter of the fibers increases with the increase in PVP concentration. The calcined BaTiO3 nanofibers were found to be coarse, brittle and diameter reduced by 12%. FT-IR study confirms the formation of metal oxide bond at higher temperature.

Item Type:	Article
Subjects:	CHEMISTRY AND MATERIALS > Chemistry and Materials (General) CHEMISTRY AND MATERIALS > Nonmetallic Materials
Depositing User:	Dr. Prasanta Kumar Panda
Date Deposited:	30 Oct 2012 04:32
Last Modified:	30 Oct 2012 04:32
URI:	http://nal-ir.nal.res.in/id/eprint/11323

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