Evaluation of Na2TiO3 formation for producing crystalline BaTiO3 nanoparticles by liquid–solid–solution process at low temperature

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

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Crystalline barium titanate (BaTiO3) nanoparticles were synthesized by refluxing in an air atmosphere at a low temperature using sodium hydroxide. The reaction mechanism of BaTiO3 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 BaTiO3 nanoparticles with a high crystalline quality and minimized agglomeration rate. BaTiO3 nanoparticles were formed via sodium titanate (Na2TiO3), and the size of the BaTiO3 nanoparticles decreased with increasing sodium hydroxide concentration. The formation of a Na2TiO3 intermediate phase was confirmed by energy dispersive X-ray spectroscopy and X-ray diffraction analysis. The capping ligands of BaTiO3 suggest that hydroxyl and oleic acid are present. The dielectric constant of the crystalline BaTiO3 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

All Science Journal Classification (ASJC) codes

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

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