Effect of Polyethylene Glycol on the Properties of γ-Al 2 O 3 Formation by Polyaluminum Chloride

A polyaluminium chloride solution with high Al 13 content self-prepared was used as material for preparing the spherical γ-Al 2 O 3 by the sol-gel and oil-drop method. Polyethylene glycol with different molecular mass was used as surfactant to investigate the effect on property of γ-Al 2 O 3 . The p...

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Published in中国化学工程学报：英文版 Vol. 20; no. 5; pp. 1034 - 1038
Main Author 赵长伟 王孝年 何劲松 王园园 栾兆坤
Format Journal Article
LanguageEnglish
Published 2012
Subjects
TG-DTA
X-射线衍射
傅立叶变换红外光谱
性能
比表面积
聚乙二醇
聚合氯化铝
表面活性剂
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ISSN1004-9541
2210-321X

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Summary:A polyaluminium chloride solution with high Al 13 content self-prepared was used as material for preparing the spherical γ-Al 2 O 3 by the sol-gel and oil-drop method. Polyethylene glycol with different molecular mass was used as surfactant to investigate the effect on property of γ-Al 2 O 3 . The physical property was characterized by 27 Al NMR （nuclear magnetic resonance） spectra, X-ray diffraction, FT-IR （Fourier transform infrared spectroscopy） and TG-DTA （thermogravimetric-differential thermal analysis）. The results showed that surface area, pore volume and pore size of γ-Al 2 O 3 all increased with the increase of polyethylene glycol molecular mass in the experimental research range, and polyethylene glycol 10000 was the most suitable pore forming additive. γ-Al 2 O 3 with surface area of 339 m 2 ·g 1 , pore volume of 0.59 cm 3 ·g 1 and pore diameter of 6.9 nm were obtained at 450 °C.
Bibliography:γ-Al 2 O 3 , polyaluminum chloride, preparation, polyethylene glycol
ZHAO Changwei , WANG Xiaonian , HE Jingsong , WANG Yuanyuan and LUAN Zhaokun 1 State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China 2 The Equipment Research Institute of PLA＇s Second Artillery, Beijing 100085, China
A polyaluminium chloride solution with high Al 13 content self-prepared was used as material for preparing the spherical γ-Al 2 O 3 by the sol-gel and oil-drop method. Polyethylene glycol with different molecular mass was used as surfactant to investigate the effect on property of γ-Al 2 O 3 . The physical property was characterized by 27 Al NMR （nuclear magnetic resonance） spectra, X-ray diffraction, FT-IR （Fourier transform infrared spectroscopy） and TG-DTA （thermogravimetric-differential thermal analysis）. The results showed that surface area, pore volume and pore size of γ-Al 2 O 3 all increased with the increase of polyethylene glycol molecular mass in the experimental research range, and polyethylene glycol 10000 was the most suitable pore forming additive. γ-Al 2 O 3 with surface area of 339 m 2 ·g 1 , pore volume of 0.59 cm 3 ·g 1 and pore diameter of 6.9 nm were obtained at 450 °C.
11-3270/TQ
ISSN:1004-9541
2210-321X