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Home  >  Journal list  >  Journal of the Ceramic Society of Japan  >  Vol.125  No.3 (March) (2017)  >  pp.100-104

Journal of the Ceramic Society of Japan
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Synthesis and characterisation of MgAl2O4 spinel nanopowders via nonhydrolytic sol–gel route

Hui LI1), Heng-Yong WEI1) 2), Yi CUI1), Rong-Li SANG1), Jing-Long BU1), Ying-Na WEI1), Jian LIN2), Jun-Hong ZHAO2)
1) College of Materials Science and Engineering, Hebei Provincial Key Laboratory of Inorganic Nonmetallic Materials, North China University of Science and Technology 2) School of Materials Science and Engineering, Tongji University

Magnesium aluminate spinel (MgAl2O4) nanopowders were synthesized via nonhydrolytic sol–gel route using anhydrous ethanol, aluminium chloride and magnesium chloride as raw materials. The samples were characterized using differential thermal and thermogravimetric analyses, X-ray diffraction, Fourier transform infrared spectroscopy, Brunauer–Emmet–Teller analysis, dynamic light scattering, scanning electron microscopy and transmission electron microscopy. The results showed that the powders with a single MgAl2O4 spinel phase were obtained after annealing the gel precursor at 900°C, and their average particle size and BET specific surface area were about 30 nm and 43.57 m2/g. In addition, the synthesized MgAl2O4 spinel nanopowders possessed mesoporous structure with the pore diameter between 3–50 nm. The MgAl2O4 spinel nanopowders also exhibited superior sintering properties.

Magnesium aluminate spinel, Nanopowders, Nonhydrolytic sol–gel

Received: December 02, 2016
Accepted: January 10, 2017 , Published online: March 01, 2017



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