Nanometer sized tantalum pentoxide fibers prepared by electrospinning

Journal Article · Thu Mar 09 04:00:00 EST 2006 · Materials Research Bulletin

DOI:https://doi.org/10.1016/j.materresbull.2005.09.004· OSTI ID:20891645

Dharmaraj, N ^[1]; Park, H C ^[2]; Kim, C H ^[2]; Viswanathamurthi, P ^[3]; Kim, H Y ^[2]

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1. Department of Chemistry, Government Arts College, Udumalpet 642126 (India) and Inorganic/Organic Nanomaterials Research Laboratory, Department of Textile Engineering, Chonbuk National University, Chonju 561-756 (Korea, Republic of)
2. Inorganic/Organic Nanomaterials Research Laboratory, Department of Textile Engineering, Chonbuk National University, Chonju 561-756 (Korea, Republic of)
3. Department of Chemistry, Periyar University, Salem (India)

Novel, porous tantalum pentoxide (Ta{sub 2}O{sub 5}) 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 Ta{sub 2}O{sub 5} 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 Ta{sub 2}O{sub 5} nanofibers. EDX analysis revealed the perfect stoichiometry of the nanofibers as Ta{sub 2}O{sub 5}. A linear correlation was noted between the calcination temperature and orthorhombic crystalline phase evolution of Ta{sub 2}O{sub 5}.

• OSTI ID: 20891645
• Journal Information: Materials Research Bulletin, Journal Name: Materials Research Bulletin Journal Issue: 3 Vol. 41; ISSN MRBUAC; ISSN 0025-5408
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ATOMIC FORCE MICROSCOPY
CALCINATION
FIBERS
FIELD EMISSION
FOURIER TRANSFORMATION
IMAGES
INFRARED SPECTRA
NANOSTRUCTURES
ORTHORHOMBIC LATTICES
POROUS MATERIALS
SCANNING ELECTRON MICROSCOPY
SOL-GEL PROCESS
STOICHIOMETRY
TANTALUM OXIDES
TEMPERATURE DEPENDENCE
VINYL ACETATE
X RADIATION
X-RAY DIFFRACTION