Journal
MATERIALS LETTERS
Volume 122, Issue -, Pages 117-120Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2014.01.177
Keywords
Electrospinning; Sol-gel preparation; CoTiO3; Nanofibers; Semiconductors
Funding
- Fundamental Research Funds for the Central Universities of China [2011JDGZ15]
- Key Technologies Research and Development Program Jiangsu Province [SBE201038213]
- Suzhou Research Program of Application Foundation [SYN201004]
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Continuous CoTiO3 nanofibers have been successfully synthesized by a sol-gel assisted electrospinning method followed by calcination at 600 C in air. The scanning electron microscopy (SEM) results reveal that the obtained CoTiO3 nanofibers are 220 nm in diameter and several micrometers in length. The X-ray diffraction (XRD) analysis shows that the nanofibers possess highly crystalline structure without any impurity phase. In contrast, the CoTiO3 nanoparticles synthesized at the identical conditions by a sol-gel route have impurities including Co3O4 and TiO2. Moreover, the electrospun CoTiO3 nanofibers are endowed with a higher specific surface area compared with the nanoparticle counterparts, which results from the regular one dimensional (1D) morphology without any detectable agglomeration and a rough surface. (C) 2014 Elsevier B.V. All rights reserved.
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