液相反滴法制备介孔氧化铝及其性能

J. Mater. Sci. Technol. ›› 2012, Vol. 28 ›› Issue (6): 572-576.

• Reviews • 上一篇

液相反滴法制备介孔氧化铝及其性能

吴玉胜¹,马姣¹,胡方¹,李明春²

1. 沈阳工业大学
2. 沈阳工业大学材料科学与工程学院

收稿日期:2011-07-17 修回日期:2011-12-19 出版日期:2012-06-28 发布日期:2012-07-02
通讯作者: 吴玉胜
基金资助:
分解过程氢氧化铝产品粒度周期性细化的机理及其预报系统研究;活性氧化铝热稳定性研究

Synthesis and Characterization of Mesoporous Alumina via a Reverse Precipitation Method

Y.S. Wu, J. Ma, F. Hu, M.C. Li

College of Materials Science and Engineering, Shenyang University of Technology, Shenyang 110870, China

Received:2011-07-17 Revised:2011-12-19 Online:2012-06-28 Published:2012-07-02
Contact: Y.S. Wu
Supported by:
the National Natural Science Foundation of China under grant No. 50804031, the Science Department of Liaoning Province of China under grant No. 20102166) and the Science Department of Shenyang City of China under grant No. F10-205-1-03

摘要/Abstract

Abstract: Mesoporous alumina γ-Al₂O₃ with high specific surface area and large pore volume is prepared by using a facile reverse precipitation method from sodium aluminate and nitric acid. The effects of terminal pH value, aging time and thermal stability on the characterization of γ-Al₂O₃ are studied by means of X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), Brunauer-Emmett-Teller (BET) method and scanning electron microscopy (SEM). The results show that γ-Al₂O₃ with better properties can be obtained by changing the preparation parameters. High BET surface area of 340 m²/g can be obtained by calcining at 500 °C for 4 h with large pore volume of 0.90 cm³/g and average pore size of 7.6 nm. After calcining at 1000°, the surface area is still 86 m²/g and the pore volume is 0.37 cm³/g.

Key words: Mesoporous alumina, Reverse precipitation, Thermal stability

吴玉胜马姣胡方李明春. 液相反滴法制备介孔氧化铝及其性能[J]. J. Mater. Sci. Technol., 2012, 28(6): 572-576.

Y.S. Wu, J. Ma, F. Hu, M.C. Li. Synthesis and Characterization of Mesoporous Alumina via a Reverse Precipitation Method[J]. J Mater Sci Technol, 2012, 28(6): 572-576.

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液相反滴法制备介孔氧化铝及其性能

Synthesis and Characterization of Mesoporous Alumina via a Reverse Precipitation Method

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