Open-Bench Method for the Preparation of BaTiO3, SrTiO3, and BaxSr1-xTiO3 nanocrystals at 80 degrees C

Kai Su; Nurxat Nuraje; Nan-Loh Yang

doi:10.1021/la701877d

Open-Bench Method for the Preparation of BaTiO3, SrTiO3, and BaxSr1-xTiO3 nanocrystals at 80 degrees C

Langmuir. 2007 Nov 6;23(23):11369-72. doi: 10.1021/la701877d. Epub 2007 Oct 5.

Authors

Kai Su¹, Nurxat Nuraje, Nan-Loh Yang

Affiliation

¹ Center for Engineered Polymeric Materials, CePM, and Department of Chemistry, College of Staten Island and The Graduate Center, The City University of New York, Staten Island, New York 10314, USA.

PMID: 17918869
DOI: 10.1021/la701877d

Abstract

In this letter, we report the first facile open-bench synthesis of BaTiO3, SrTiO3 nanocrystals, and their nanosolid solutions BaxSr1-xTiO3 (BST) at 80 degrees C. The size of the BST nanoparticles was readily tuned from approximately 50 to approximately 10 nm with achievable giant dielectric constants. The process yielded these important perovskite mixed-metal oxide crystals of high quality on the nanometer scale without a history of thermal stress. This new synthesis system involves inorganic starting materials without organic components and does not require demanding conditions such as an inert environment, high pressure, and high temperature.