Synthesis of γ-Al2O3 with High Surface Area and Large Pore Volume by Reverse Precipitation-azeotropic Distillation Method

doi:10.1007/s40242-013-2207-7

Chemical Research in Chinese Universities ›› 2013, Vol. 29 ›› Issue (2): 206-209.doi: 10.1007/s40242-013-2207-7

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Synthesis of γ-Al₂O₃ with High Surface Area and Large Pore Volume by Reverse Precipitation-azeotropic Distillation Method

WU Yu-sheng, MA Jiao, LI Ming-chun, HU Fang

School of Materials Science and Engineering, Shenyang University of Technology, Shenyang 110870, P. R. China

Received:2012-05-25 Revised:2012-09-03 Online:2013-04-01 Published:2013-03-20
Supported by:
Supported by the Program for Liaoning Exellent Talents in University, China(No.LJQ2011011), the Project of Science Department of Liaoning Province of China(No.20102166) and the Project of Science Department of Shenyang City of China (No.F10-205-1-03).

Abstract

Abstract:

γ-Al₂O₃ with high surface area and large pore volume combined with high thermal stability was synthesized by a reverse precipitation-azeotropic distillation method. The effects of azeotropic distillation on the characteristics of γ-Al₂O₃ were studied by means of X-ray diffraction(XRD), Fourier transform infrared(FTIR) spectroscopy, transmission electron microscopy(TEM) and N₂ adsorption-desorption. The results show that γ-Al₂O₃ dried by azeotropic distillation has excellent structure characteristics with a high surface area of 426 m²/g and a large pore volume of 2.56 cm³/g. After calcination at 1100℃, the surface area of γ-Al₂O₃ was still 92 m²/g with a large pore volume of 1.00 cm³/g, indicating the potential application in catalyst and petroleum industry.

Key words: Reverse precipitation, Azeotropic distillation, γ-Alumina, n-Butyl alcohol, Thermal stability

WU Yu-sheng, MA Jiao, LI Ming-chun, HU Fang. Synthesis of γ-Al₂O₃ with High Surface Area and Large Pore Volume by Reverse Precipitation-azeotropic Distillation Method[J]. Chemical Research in Chinese Universities, 2013, 29(2): 206-209.

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Synthesis of γ-Al₂O₃ with High Surface Area and Large Pore Volume by Reverse Precipitation-azeotropic Distillation Method

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