CTAB-directed synthesis of mesoporous γ-alumina promoted by hydroxy polyacids

被引：41
作者：
Yue, Ming Bo [1 ,2 ]
Jiao, Wen Qian [1 ]
Wang, Yi Meng [1 ]
He, Ming-Yuan [1 ]
机构：
[1] E China Normal Univ, Dept Chem, Shanghai Key Lab Green Chem & Chem Proc, Shanghai 200062, Peoples R China
[2] Qufu Normal Univ, Sch Chem & Chem Engn, Qufu, Shandong, Peoples R China
来源：
MICROPOROUS AND MESOPOROUS MATERIALS | 2010年 / 132卷 / 1-2期
基金：
美国国家科学基金会;
关键词：
Mesoporous gamma-Al2O3; Hydroxyl polyacids; Double hydrolysis; CTAB; Cyclohexene epoxidation; SURFACTANT-ASSISTED SYNTHESIS; SOL-GEL SYNTHESIS; SILICA MATERIALS; PORE-SIZE; FACILE SYNTHESIS; CARBOXYLIC-ACID; EPOXIDATION; ROUTE; GAMMA-AL2O3; STABILITY;
D O I：
10.1016/j.micromeso.2010.03.002
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
A new strategy was introduced to synthesize mesoporous gamma-Al2O3 by double hydrolysis method using hydroxyl polyacids and CTAB (cetyltrimethylammonium bromide) as co-templates. The intermediate aluminum hydroxides were characterized by IR, XRD and TG. A formation mechanism of the meso-structure is suggested, where hydroxyl polyacids interact with aluminum species and CTAB simultaneously and bridge the interaction between aluminum and CTAB micelle in favor of the genesis of ordered mesostructure. Characterizations by XRD and N-2 sorption measurements showed that the resulted mesoporous alumina with gamma-Al2O3 phase possessed high surface area (398 m(2) g(-1)), large pore volume (0.59 cm(3) g(-1)) and exhibited good catalytic activity for cyclohexene epoxidation. (C) 2010 Elsevier Inc. All rights reserved.
引用
收藏
页码：226 / 231
页数：6
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