Synthesis of texture-excellent mesoporous alumina using PEG1000 as structure-directing agent

doi:10.1016/j.cjche.2016.07.007

›› 2017, Vol. 25 ›› Issue (1): 137-141.DOI: 10.1016/j.cjche.2016.07.007

• Materials and Product Engineering • 上一篇

Synthesis of texture-excellent mesoporous alumina using PEG1000 as structure-directing agent

Kui Zhang^1,2, Changming Li¹, Jian Yu¹, Shiqiu Gao¹, Guangwen Xu¹

1 State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China;
2 University of Chinese Academy of Sciences, Beijing 100049, China

收稿日期:2016-03-24 修回日期:2016-07-06 出版日期:2017-01-28 发布日期:2017-02-15
通讯作者: Guangwen Xu,E-mail address:gwxu@home.ipe.ac.cn
基金资助:
Supported by the National Basic Research Program of China (Y419012198) and the National Natural Science Foundation of China (No. 91534125).

Synthesis of texture-excellent mesoporous alumina using PEG1000 as structure-directing agent

Kui Zhang^1,2, Changming Li¹, Jian Yu¹, Shiqiu Gao¹, Guangwen Xu¹

1 State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China;
2 University of Chinese Academy of Sciences, Beijing 100049, China

Received:2016-03-24 Revised:2016-07-06 Online:2017-01-28 Published:2017-02-15
Supported by:
Supported by the National Basic Research Program of China (Y419012198) and the National Natural Science Foundation of China (No. 91534125).

摘要/Abstract

摘要： By varying concentration of PEG1000 as a structure-directing agent, mesoporous alumina with excellent textural properties was synthesized. The prepared mesoporous alumina displays high thermal stability, as shown by its textural properties at different calcination temperatures of 600-850℃. Characterization by SEM and TEM revealed that the added PEG surfactant induced the formation of petal-like alumina. XRD results clarified that all samples were amorphous and their peaks were around the peaks of γ-alumina. N₂ adsorption-desorption analysis showed that the prepared mesoporous alumina, if with PEG1000 in hydrolysis of aluminum isopropoxide, had excellent textural properties with large specific surface area, high pore volume and suitable pore size. The petal-like structure existing in the alumina samples improved their textural parameters, and the role and influential mechanism of PEG1000 were analyzed.

关键词: Alumina, PEG1000, Surfactant, Stability

Abstract: By varying concentration of PEG1000 as a structure-directing agent, mesoporous alumina with excellent textural properties was synthesized. The prepared mesoporous alumina displays high thermal stability, as shown by its textural properties at different calcination temperatures of 600-850℃. Characterization by SEM and TEM revealed that the added PEG surfactant induced the formation of petal-like alumina. XRD results clarified that all samples were amorphous and their peaks were around the peaks of γ-alumina. N₂ adsorption-desorption analysis showed that the prepared mesoporous alumina, if with PEG1000 in hydrolysis of aluminum isopropoxide, had excellent textural properties with large specific surface area, high pore volume and suitable pore size. The petal-like structure existing in the alumina samples improved their textural parameters, and the role and influential mechanism of PEG1000 were analyzed.

Key words: Alumina, PEG1000, Surfactant, Stability

Kui Zhang, Changming Li, Jian Yu, Shiqiu Gao, Guangwen Xu. Synthesis of texture-excellent mesoporous alumina using PEG1000 as structure-directing agent[J]. , 2017, 25(1): 137-141.

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Synthesis of texture-excellent mesoporous alumina using PEG1000 as structure-directing agent

Synthesis of texture-excellent mesoporous alumina using PEG1000 as structure-directing agent

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