Synthesis of large-mesoporous γ-Al2O3 from coal-series kaolin at room temperature

被引：25

作者：

Pan, Feng ^{[1
,2
]}

Lu, Xuchen ^{[1
,3
]}

Wang, Tizhuang ^{[1
]}

Wang, Yun ^{[1
,2
]}

Zhang, Zhimin ^{[1
,2
]}

Yan, Yan ^{[1
]}

Yang, Suping ^{[1
,2
]}

机构：

[1] Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China

[2] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

[3] United Res Ctr Resource & Mat, Wuhai 016000, Peoples R China

来源：

MATERIALS LETTERS | 2013年 / 91卷

关键词：

Porous materials; Oxidation; CTAB; Large-mesoporous gamma-Al3O3; Kaolin; Room temperature; LARGE SURFACE-AREA; GAMMA-ALUMINA; FACILE SYNTHESIS; NANOSTRUCTURES; HYDROLYSIS;

D O I：

10.1016/j.matlet.2012.09.052

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Large-mesoporous Al2O3 has been successfully synthesized from calcined coal-series kaolin by using cetyltrimethylammonium bromide(CTAB) as template at room temperature. After calcined at 700 degrees C, the as-synthesized samples have transformed to mesoporous gamma-Al2O3. The mesoporous gamma-Al2O3 has a specific area of 253.4 m(2) g(-1), large pore volume of 1.487 cm(3) g(-1), and an average pore diameter of 12.9 nm. TEM images show that the calcined mesoporous alumina has wormhole-like pores without long-range ordered framework. A probable formation mechanism of large-mesoporous gamma-Al2O3 is also proposed. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：136 / 138

页数：3

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