Paper Title:
Synthesis of SrTiO3 Nanoparticles by a pH-Varying Sol-Gel Process
  Abstract

SrTiO3 is one of the most technologically important dielectric ceramics. In this paper, SrTiO3 nanoparticles were synthesized by a simple sol-gel route using NaOH to adjust the pH of the system. Three different strontium-containing starting precursors (Sr(NO3, SrCl2.6H2O and Sr(CH3COO)2.0.5H2O) were employed. Thermogravimetric analysis (TGA) showed complete decomposition of organics at approximately 800°C; this temperature was chosen as a calcination temperature. At 800°C, 6 hours, only the nitrate route with pH = 10 gives single-phase SrTiO3. Other conditions yield various impurities, most likely due to the incompletion of the reaction although they still contain very broad XRD peaks corresponding to SrTiO3, signifying the probable phase formation capability at these conditions. The obtained SrTiO3 powders are in the nanoscale range of 10 to 40 nm with isotropic morphology.

  Info
Periodical
Advanced Materials Research (Volumes 93-94)
Edited by
S. Suttiruengwong and W. Sricharussin
Pages
471-474
DOI
10.4028/www.scientific.net/AMR.93-94.471
Citation
N. Yongvanich, P. Visuttipitukkul, "Synthesis of SrTiO3 Nanoparticles by a pH-Varying Sol-Gel Process", Advanced Materials Research, Vols. 93-94, pp. 471-474, 2010
Online since
January 2010
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Marco Nagliati, M.C. Carotta, S. Gherardi, Isidoro Giorgio Lesci, G. Martinelli
Abstract:Aim of the work is to compare the morphological properties of TiO2 powders obtained by different methods. The microstructure of powders is a...
205
Authors: Rong Jie Gao, Ping Wei Wu
Abstract:Titania powders consisting of well-crystallized nanosize anatase phase were prepared by the hydrothermal synthesis from Ti(OC4H9)4 at T=568K...
465
Authors: Xi Xin Wang, Jian Ling Zhao, Zhao Hui Meng, Jia Wei Yan
Abstract:Titania nanoparticles were successfully synthesized through an easily controlled and simple autothermal gelation process. Effects of H2O2...
1188
Authors: Mohammad Reza Golobostanfard, Reza Ebrahimifard, Hossein Abdizadeh
Abstract:TiO2/ZnO Nanocomposite powders with different Zn/Ti ratios were synthesized via sol-gel method. The as prepared and calcined Titania...
993
Authors: Man Sig Lee, Ju Dong Lee, Hong Dae Kim, Seong Soo Hong
Abstract:Nanosized TiO2-SiO2 particles were prepared by controlled hydrolysis of titanium tetraisopropoxide (TTIP) and...
602