Synthesis and characterization of micro/nanoscopic Pb(Zr0.52Ti0.48)O3 fibers by electrospinning

Micro/nanoscopic Pb(Zr0.52Ti0.48)O3 fibers were synthesized from commercially available zirconium n-pro-poxide, titanium isopropoxide, and lead 2-ethylhexanoate. Using xylene as a solvent, they were mixed to form a precursor solution with a suitable viscosity for electrospinning. The solution was an...

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Bibliographic Details
Published in:Applied physics. A, Materials science & processing Materials science & processing, 2004-04, Vol.78 (7), p.1043-1047
Main Authors: WANG, Y, FURLAN, R, RAMOS, I, SANTIAGO-AVILES, J. J
Format: Article
Language:English
Subjects:
Cross-disciplinary physics: materials science
rheology
Electrospinning
Exact sciences and technology
Fibers
Materials science
Materials synthesis
materials processing
Mats
Nanomaterials
Nanoscale materials and structures: fabrication and characterization
Nanostructure
Other topics in nanoscale materials and structures
Physics
Precursors
Scanning electron microscopy
Titanium
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Summary:Micro/nanoscopic Pb(Zr0.52Ti0.48)O3 fibers were synthesized from commercially available zirconium n-pro-poxide, titanium isopropoxide, and lead 2-ethylhexanoate. Using xylene as a solvent, they were mixed to form a precursor solution with a suitable viscosity for electrospinning. The solution was analyzed using thermo-gravimetric and differential thermal methods. Ultra-fine fibers and mats were electrostatically drawn from the precursor solution. The as-deposited materials were sintered for 2 h at 400, 500, 600, 700 and 800 C, respectively. Sintered mats or fibers were characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM), Auger electron spectroscopy (AES), Raman micro-spectrometry and scanning-probe microscopy (SPM). The SEM results revealed that the fibers had diameters varying from hundreds of nanometers to 10 {/content/NP6UXERYYRUVPY8V/xxlarge956.gif}m. Using AES, the elements Pb, Zr, Ti and O, as well as residual C, were detected on the surface of the fibers. Raman and XRD spectra indicated that the precursors began to transform into the intermediate pyrochlore phase at 400 C, followed by the perovskite Pb(Zr0.52Ti0.48)O3 phase above 600 C. Scanning-probe microscopy (SPM), operated in the piezo-response imaging mode, revealed spontaneous polarization domains in the fibers, with diameters ranging from 100 to 500 nm.
ISSN:0947-8396
1432-0630
DOI:10.1007/s00339-003-2152-2