Nanometer sized tantalum pentoxide fibers prepared by electrospinning

被引：32

作者：

Dharmaraj, N ^{[1
]}

Park, HC

Kim, CH

Viswanathamurthi, P

Kim, HY

机构：

[1] Govt Arts Coll, Dept Chem, Udumalpet 642126, India

[2] Chonbuk Natl Univ, Dept Text Engn, Inorgan Organ Nanomat Res Lab, Chonju 561756, South Korea

[3] Periyar Univ, Dept Chem, Salem, India

来源：

MATERIALS RESEARCH BULLETIN | 2006年 / 41卷 / 03期

关键词：

nanofibers; electrospinning; x-ray diffraction; oxides;

D O I：

10.1016/j.materresbull.2005.09.004

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Novel, porous tantalum pentoxide (Ta2O5) nanofibers with 150-250 nm diameter were obtained by high temperature calcination of the as-electrospun tantalum pentoxide/poly(vinyl acetate) (PVAc) composite fibers prepared by sol-gel processing and electrospinning technique. Surface analysis, structure and elemental composition of these as-electrospun and as-calcinated Ta2O5 nanofibers have been studied by scanning electron microscope (SEM) equipped with an energy dispersive X-ray analysis (EDX), high resolution field emission scanning electron microscopy (FE-SEM), atomic force microscopy (AFM), X-ray diffraction patterns (XRD) and FT-IR. High-resolution FE-SEM images showed the porous nature of Ta2O5 nanofibers. EDX analysis revealed the perfect stoichiometry of the nanofibers as Ta2O5. A linear correlation was noted between the calcination temperature and orthorhombic crystalline phase evolution of Ta2O5. (c) 2005 Elsevier Ltd. All rights reserved.

引用

页码：612 / 619

页数：8

共 36 条

[1] ELLIPSOMETRIC EXAMINATION OF GROWTH AND DISSOLUTION RATES OF TA2O5 FILMS FORMED BY METALORGANIC CHEMICAL VAPOR-DEPOSITION [J].