SrTiO3 nanocuboids from a lamellar microemulsion

Linhua Hu, Chuandao Wang, Sungsik Lee, Randall E. Winans, Laurence D. Marks, Kenneth R Poeppelmeier

Research output: Contribution to journalArticle

28 Citations (Scopus)

Abstract

Microemulsion science has provided a wide range of possibilities in materials fabrication. Here, we describe a novel approach to the synthesis of SrTiO3 nanoparticles of different shapes from a microemulsion. We show that the microemulsion structure plays a critical role in the shape of the nanoparticles, with diffusion-limited growth when normal or reverse micelles are present to nanocuboids with a kinetic-Wulff shape in a lamellar microemulsion leading to nanocuboids. As determined by a combination of in situ small-angle X-ray scattering (SAXS) and wide-angle X-ray scattering (WAXS) as a function of temperature and ex situ high-angle annular dark field (HAADF) imaging, the as-prepared SrTiO3 nanocuboids grow between three layers of water (3 × 1.1 nm) and two layers of oil (2 × 2.3 nm) leading to individual crystals which are uniformly 8 nm thick with somewhat greater lengths and widths.

Original languageEnglish
Pages (from-to)378-384
Number of pages7
JournalChemistry of Materials
Volume25
Issue number3
DOIs
Publication statusPublished - Feb 12 2013

Fingerprint

Microemulsions
X ray scattering
Nanoparticles
Micelles
Oils
Imaging techniques
Fabrication
Crystals
Kinetics
strontium titanium oxide
Water
Temperature

Keywords

  • lamellar microemulsion
  • perovskite
  • SrTiO nanocuboids
  • synthesis
  • X-ray scattering

ASJC Scopus subject areas

  • Materials Chemistry
  • Chemical Engineering(all)
  • Chemistry(all)

Cite this

SrTiO3 nanocuboids from a lamellar microemulsion. / Hu, Linhua; Wang, Chuandao; Lee, Sungsik; Winans, Randall E.; Marks, Laurence D.; Poeppelmeier, Kenneth R.

In: Chemistry of Materials, Vol. 25, No. 3, 12.02.2013, p. 378-384.

Research output: Contribution to journalArticle

Hu, L, Wang, C, Lee, S, Winans, RE, Marks, LD & Poeppelmeier, KR 2013, 'SrTiO3 nanocuboids from a lamellar microemulsion', Chemistry of Materials, vol. 25, no. 3, pp. 378-384. https://doi.org/10.1021/cm303303x
Hu, Linhua ; Wang, Chuandao ; Lee, Sungsik ; Winans, Randall E. ; Marks, Laurence D. ; Poeppelmeier, Kenneth R. / SrTiO3 nanocuboids from a lamellar microemulsion. In: Chemistry of Materials. 2013 ; Vol. 25, No. 3. pp. 378-384.
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