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论文类型：期刊论文

发表时间：2008-07-28

发表刊物：JOURNAL OF ALLOYS AND COMPOUNDS

收录刊物：SCIE、EI、Scopus

卷号：460

期号：1-2

页面范围：160-163

ISSN号：0925-8388

关键字：sol-gel method; MgTiO3; stearic acid gel; flake morphology

摘要：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.