Release Time:2019-03-10  Hits:

Indexed by: Journal Article

Date of Publication: 2008-07-28

Journal: JOURNAL OF ALLOYS AND COMPOUNDS

Included Journals: Scopus、EI、SCIE

Volume: 460

Issue: 1-2

Page Number: 160-163

ISSN: 0925-8388

Key Words: sol-gel method; MgTiO3; stearic acid gel; flake morphology

Abstract: Nanocrystallite magnesium titanate (McMO(3)) with a tetragonal flake-like shape was synthesized by stearic acid gel (SAG) method. The asprepared Mg-Ti gel was analyzed by thermal gravimetric analysis, and the calcined Mg-Ti gel was further characterized by X-ray diffraction, Fourier transform infrared spectrometry, UV/vis spectrophotometer, fluorescence spectrofluorimeter and transmission electron microscopy, respectively. The results indicate that single-phase MgTiO3 can be successfully synthesized at a wide range of temperature from 500 to 900 degrees C. The average crystalline size distribution was found in the range of 30-50 nm. All MgTiO3 crystallites prepared by the current SAG method had a slight agglomeration with the special tetragonal flake-like morphology, while the unwanted contaminant phases like MgTi2O5 can be completely avoided. (C) 2007 Elsevier B.V. All rights reserved.