Issue 34, 2012

Low-temperature synthesis of crystalline BaTiO3nanoparticles by one-step “organosol”-precipitation

Abstract

The “organosol” precipitation method is proposed to produce nanosized particles of barium titanate (BaTiO3) at temperatures as low as room temperature. The advantages of this method are a high yield, a simple but precise control of the size of the particles, low process temperature, short reaction time, as well as low cost of reagents. The particles were systematically characterized by powder X-ray diffraction (XRD), Raman scattering, scanning electron microscopy (SEM), high-resolution transmission electron microscopy (HRTEM), thermogravimetric thermal analysis (TGA/DSC), infrared spectroscopy (IR), and impedance analysis. The as-prepared BaTiO3 nanocrystals exhibit a granular shape of around 15 nm in diameter. Oleic acid retards crystallization and thus allows generation of a uniformly small grain size and excellent dispersibility in organic solvents. The surface energy of the particles is modified and crystallization in cubes also arises. The mechanism of powder formation is discussed. The method offers an alternate low-cost route to perovskite nanopowders easily dispersed in organic media.

Graphical abstract: Low-temperature synthesis of crystalline BaTiO3 nanoparticles by one-step “organosol”-precipitation

Article information

Article type
Paper
Submitted
25 May 2012
Accepted
04 Jul 2012
First published
04 Jul 2012

J. Mater. Chem., 2012,22, 17573-17583

Low-temperature synthesis of crystalline BaTiO3 nanoparticles by one-step “organosol”-precipitation

Y. Gao, V. V. Shvartsman, A. Elsukova and D. C. Lupascu, J. Mater. Chem., 2012, 22, 17573 DOI: 10.1039/C2JM33373B

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Spotlight

Advertisements