Synthesis and characterization of BaTiO3 nanoparticles in oxygen atmosphere

S. Fuentes; R. A. Zárate; E. Chávez; P. Muñoz; M. Ayala; R. Espinoza-González; P. Leyton

doi:10.1016/j.jallcom.2010.06.074

Synthesis and characterization of BaTiO₃ nanoparticles in oxygen atmosphere

S. Fuentes, R. A. Zárate, E. Chávez, P. Muñoz, M. Ayala, R. Espinoza-González, P. Leyton

INSTITUTE OF CHEMISTRY

Research output: Contribution to journal › Article › peer-review

48 Scopus citations

Abstract

A new synthesis route to obtain high-purity barium titanate, BaTiO ₃, using the sol-gel-hydrothermal reaction of TiCl₄ and a BaCl₂ solution in an oxygen atmosphere has been developed. The synthesized BaTiO₃ nanoparticles are nearly spherical. Their grain sizes are determined by the reaction temperature, reaching values as low as 50 nm when the particles are synthesized at 200 °C; interestingly even those particles with the smallest grain sizes displayed a ferroelectric behavior as characterized by a polarization hysteresis loop. The microstructure and composition of the as-synthesized samples were investigated by X-ray diffraction (XRD), high-resolution TEM (HRTEM), Raman spectroscopy, atomic force microscopy (AFM) and energy-dispersive X-ray spectroscopy (EDS).

Original language	English
Pages (from-to)	568-572
Number of pages	5
Journal	Journal of Alloys and Compounds
Volume	505
Issue number	2
DOIs	https://doi.org/10.1016/j.jallcom.2010.06.074
State	Published - 3 Sep 2010

Keywords

Barium compounds
Ferroelectric materials
Nanostructures
Sol-gel process

Access to Document

10.1016/j.jallcom.2010.06.074

Cite this

@article{426a5bcf27434753ac3c479686da1bb3,

title = "Synthesis and characterization of BaTiO3 nanoparticles in oxygen atmosphere",

abstract = "A new synthesis route to obtain high-purity barium titanate, BaTiO 3, using the sol-gel-hydrothermal reaction of TiCl4 and a BaCl2 solution in an oxygen atmosphere has been developed. The synthesized BaTiO3 nanoparticles are nearly spherical. Their grain sizes are determined by the reaction temperature, reaching values as low as 50 nm when the particles are synthesized at 200 °C; interestingly even those particles with the smallest grain sizes displayed a ferroelectric behavior as characterized by a polarization hysteresis loop. The microstructure and composition of the as-synthesized samples were investigated by X-ray diffraction (XRD), high-resolution TEM (HRTEM), Raman spectroscopy, atomic force microscopy (AFM) and energy-dispersive X-ray spectroscopy (EDS).",

keywords = "Barium compounds, Ferroelectric materials, Nanostructures, Sol-gel process",

author = "S. Fuentes and Z{\'a}rate, {R. A.} and E. Ch{\'a}vez and P. Mu{\~n}oz and M. Ayala and R. Espinoza-Gonz{\'a}lez and P. Leyton",

note = "Funding Information: This work has been partially financed by FONDECYT grant under contract No. 1080401, Basal Financing Program CONICYT, FB0807 (CEDENNA). The authors thank the Facultad de Ciencias F{\'i}sicas y Matem{\'a}ticas of the Universidad de Chile for the use of their analytical equipment (XRD and TEM). R.A.Z. acknowledges FUNDACION ANDES grant under contract No. C-13876. E. Chavez acknowledges to CONICYT under grant 22090805 .",

year = "2010",

month = sep,

day = "3",

doi = "10.1016/j.jallcom.2010.06.074",

language = "English",

volume = "505",

pages = "568--572",

journal = "Journal of Alloys and Compounds",

issn = "0925-8388",

publisher = "Elsevier BV",

number = "2",

}

TY - JOUR

T1 - Synthesis and characterization of BaTiO3 nanoparticles in oxygen atmosphere

AU - Fuentes, S.

AU - Zárate, R. A.

AU - Chávez, E.

AU - Muñoz, P.

AU - Ayala, M.

AU - Espinoza-González, R.

AU - Leyton, P.

N1 - Funding Information: This work has been partially financed by FONDECYT grant under contract No. 1080401, Basal Financing Program CONICYT, FB0807 (CEDENNA). The authors thank the Facultad de Ciencias Físicas y Matemáticas of the Universidad de Chile for the use of their analytical equipment (XRD and TEM). R.A.Z. acknowledges FUNDACION ANDES grant under contract No. C-13876. E. Chavez acknowledges to CONICYT under grant 22090805 .

PY - 2010/9/3

Y1 - 2010/9/3

N2 - A new synthesis route to obtain high-purity barium titanate, BaTiO 3, using the sol-gel-hydrothermal reaction of TiCl4 and a BaCl2 solution in an oxygen atmosphere has been developed. The synthesized BaTiO3 nanoparticles are nearly spherical. Their grain sizes are determined by the reaction temperature, reaching values as low as 50 nm when the particles are synthesized at 200 °C; interestingly even those particles with the smallest grain sizes displayed a ferroelectric behavior as characterized by a polarization hysteresis loop. The microstructure and composition of the as-synthesized samples were investigated by X-ray diffraction (XRD), high-resolution TEM (HRTEM), Raman spectroscopy, atomic force microscopy (AFM) and energy-dispersive X-ray spectroscopy (EDS).

AB - A new synthesis route to obtain high-purity barium titanate, BaTiO 3, using the sol-gel-hydrothermal reaction of TiCl4 and a BaCl2 solution in an oxygen atmosphere has been developed. The synthesized BaTiO3 nanoparticles are nearly spherical. Their grain sizes are determined by the reaction temperature, reaching values as low as 50 nm when the particles are synthesized at 200 °C; interestingly even those particles with the smallest grain sizes displayed a ferroelectric behavior as characterized by a polarization hysteresis loop. The microstructure and composition of the as-synthesized samples were investigated by X-ray diffraction (XRD), high-resolution TEM (HRTEM), Raman spectroscopy, atomic force microscopy (AFM) and energy-dispersive X-ray spectroscopy (EDS).

KW - Barium compounds

KW - Ferroelectric materials

KW - Nanostructures

KW - Sol-gel process

UR - http://www.scopus.com/inward/record.url?scp=77955919719&partnerID=8YFLogxK

U2 - 10.1016/j.jallcom.2010.06.074

DO - 10.1016/j.jallcom.2010.06.074

M3 - Article

AN - SCOPUS:77955919719

SN - 0925-8388

VL - 505

SP - 568

EP - 572

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

IS - 2

ER -

Synthesis and characterization of BaTiO₃ nanoparticles in oxygen atmosphere

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this