Evaluation of Na 2 TiO 3 formation for producing crystalline BaTiO 3 nanoparticles by liquid–solid–solution process at low temperature

Wooje Han, Hong Sub Lee, Byungwook Yoo, Hyung-Ho Park

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Crystalline barium titanate (BaTiO 3 ) nanoparticles were synthesized by refluxing in an air atmosphere at a low temperature using sodium hydroxide. The reaction mechanism of BaTiO 3 nanoparticle formation by this new liquid–solid–solution (LSS) synthesis route with refluxing in an air atmosphere at a low temperature of 80 °C was demonstrated to be a facile fabrication process for BaTiO 3 nanoparticles with a high crystalline quality and minimized agglomeration rate. BaTiO 3 nanoparticles were formed via sodium titanate (Na 2 TiO 3 ), and the size of the BaTiO 3 nanoparticles decreased with increasing sodium hydroxide concentration. The formation of a Na 2 TiO 3 intermediate phase was confirmed by energy dispersive X-ray spectroscopy and X-ray diffraction analysis. The capping ligands of BaTiO 3 suggest that hydroxyl and oleic acid are present. The dielectric constant of the crystalline BaTiO 3 nanoparticles was higher than 150.

Original languageEnglish
Pages (from-to)2160-2164
Number of pages5
JournalJournal of Alloys and Compounds
Volume695
DOIs
Publication statusPublished - 2017 Feb 25

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Nanoparticles
Crystalline materials
Sodium Hydroxide
Sodium
Temperature
Barium titanate
Oleic acid
Oleic Acid
Air
Hydroxyl Radical
X ray diffraction analysis
Permittivity
Agglomeration
Ligands
Fabrication

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

Cite this

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abstract = "Crystalline barium titanate (BaTiO 3 ) nanoparticles were synthesized by refluxing in an air atmosphere at a low temperature using sodium hydroxide. The reaction mechanism of BaTiO 3 nanoparticle formation by this new liquid–solid–solution (LSS) synthesis route with refluxing in an air atmosphere at a low temperature of 80 °C was demonstrated to be a facile fabrication process for BaTiO 3 nanoparticles with a high crystalline quality and minimized agglomeration rate. BaTiO 3 nanoparticles were formed via sodium titanate (Na 2 TiO 3 ), and the size of the BaTiO 3 nanoparticles decreased with increasing sodium hydroxide concentration. The formation of a Na 2 TiO 3 intermediate phase was confirmed by energy dispersive X-ray spectroscopy and X-ray diffraction analysis. The capping ligands of BaTiO 3 suggest that hydroxyl and oleic acid are present. The dielectric constant of the crystalline BaTiO 3 nanoparticles was higher than 150.",
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Evaluation of Na 2 TiO 3 formation for producing crystalline BaTiO 3 nanoparticles by liquid–solid–solution process at low temperature . / Han, Wooje; Lee, Hong Sub; Yoo, Byungwook; Park, Hyung-Ho.

In: Journal of Alloys and Compounds, Vol. 695, 25.02.2017, p. 2160-2164.

Research output: Contribution to journalArticle

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T1 - Evaluation of Na 2 TiO 3 formation for producing crystalline BaTiO 3 nanoparticles by liquid–solid–solution process at low temperature

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AU - Lee, Hong Sub

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AB - Crystalline barium titanate (BaTiO 3 ) nanoparticles were synthesized by refluxing in an air atmosphere at a low temperature using sodium hydroxide. The reaction mechanism of BaTiO 3 nanoparticle formation by this new liquid–solid–solution (LSS) synthesis route with refluxing in an air atmosphere at a low temperature of 80 °C was demonstrated to be a facile fabrication process for BaTiO 3 nanoparticles with a high crystalline quality and minimized agglomeration rate. BaTiO 3 nanoparticles were formed via sodium titanate (Na 2 TiO 3 ), and the size of the BaTiO 3 nanoparticles decreased with increasing sodium hydroxide concentration. The formation of a Na 2 TiO 3 intermediate phase was confirmed by energy dispersive X-ray spectroscopy and X-ray diffraction analysis. The capping ligands of BaTiO 3 suggest that hydroxyl and oleic acid are present. The dielectric constant of the crystalline BaTiO 3 nanoparticles was higher than 150.

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