Low-temperature synthesis of phase-pure 0D-1D BaTiO3 nanostructures using H2Ti3O7 templates

Duk Kyu Lee, In Sun Cho, SangWook Lee, Dong Hoe Kim, Hyun Woo Shim, Dong-Wan Kim, Kug Sun Hong

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

One-dimensional (1D) barium titanate (BaTiO3) nanowires, which were uniformly covered with 0D BaTiO3 nanocrystals, were synthesized by using a simple solvothermal reaction of protonated trititanate (H 2Ti3O7) nanowires with barium hydroxide octahydrate [Ba(OH)2·8H2O] at 80 ° C in ethanol/ water mixed solvent systems. The compositions of the mixed solvents - the volume ratio of ethanol to deionized water - was a key controlling parameter in order to determine the phase formation and primary particle size of the 0D BaTiO3 nanocrystals. Single-phase cubic perovskite BaTiO3 started to form at 80 ° C in a mixed solvent containing more than approximately 60% by volume of ethanol. Field-emission scanning electron microscopy (FESEM) and high-resolution transmission electron microscopy (HRTEM) analysis revealed that the as-prepared BaTiO3 retained its wire-shaped morphology with nanocrystals on the surface. Furthermore, the synthetic mechanism of the 0D-1D BaTiO3 nanostructures was demonstrated in view of the dielectric tuning of the mixed solvent and the similarities between the crystal structures of BaTiO3 and H 2Ti3O7.

Original languageEnglish
Pages (from-to)1343-1347
Number of pages5
JournalEuropean Journal of Inorganic Chemistry
Issue number9
DOIs
Publication statusPublished - 2010 Mar 19
Externally publishedYes

Fingerprint

Nanostructures
Nanocrystals
Ethanol
Nanowires
Temperature
Deionized water
High resolution transmission electron microscopy
Field emission
Tuning
Crystal structure
Particle size
Wire
Scanning electron microscopy
Water
Chemical analysis

Keywords

  • Barium
  • Nanostructures
  • Perovskite phases
  • Solvent effects
  • Template synthesis
  • Titanates

ASJC Scopus subject areas

  • Inorganic Chemistry

Cite this

Low-temperature synthesis of phase-pure 0D-1D BaTiO3 nanostructures using H2Ti3O7 templates. / Lee, Duk Kyu; Cho, In Sun; Lee, SangWook; Kim, Dong Hoe; Shim, Hyun Woo; Kim, Dong-Wan; Hong, Kug Sun.

In: European Journal of Inorganic Chemistry, No. 9, 19.03.2010, p. 1343-1347.

Research output: Contribution to journalArticle

Lee, Duk Kyu ; Cho, In Sun ; Lee, SangWook ; Kim, Dong Hoe ; Shim, Hyun Woo ; Kim, Dong-Wan ; Hong, Kug Sun. / Low-temperature synthesis of phase-pure 0D-1D BaTiO3 nanostructures using H2Ti3O7 templates. In: European Journal of Inorganic Chemistry. 2010 ; No. 9. pp. 1343-1347.
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