Facile synthesis and characterization of acid-base bifunctionalized mesoporous silica

被引：20

作者：

Chen, Ying ^{[1
]}

Han, Jinyu ^{[1
]}

Zhang, Haitao ^{[1
]}

机构：

[1] Tianjin Univ, State Educ Minist, Sch Chem Engn & Technol, Key Lab Green Chem Technol, Tianjin 300072, Peoples R China

来源：

APPLIED SURFACE SCIENCE | 2008年 / 254卷 / 18期

关键词：

mesoporous materials; acid-base properties; MgO-Al2O3-SBA-15; surface functionalization;

D O I：

10.1016/j.apsusc.2008.03.169

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A simple acid-base bifunctionalized approach has been developed through grinding the precursors, magnesium and aluminium nitrates, with the as-prepared SBA-15, and then the generation of acid-base active sites and removal of host template were combined into a single step in the subsequent calcination procedure. A series of acid-base bifunctional mesoporous materials MgO-Al2O3-SBA-15 (MA-SBA-15) have been successfully synthesized by means of this approach. X-ray diffraction (XRD), high-resolution transmission electron microscopes (HRTEMs), N-2 adsorption, FT-IR spectra, Al-27 and Si-29 magic-angle-spinning (MAS) NMR, NH3- and CO2-temperature programmed desorption (TPD), pyridine adsorption were employed to characterize the resultant mesoporous materials. The results indicate that the guests can be well dispersed in the channel of SBA-15, and the resultant materials exhibit excellent acid-basic properties with well mesoporous backbone, which make it possessing high activity for the synthesis of ethyl methyl carbonate, an important asymmetric carbonate ester compound. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：5967 / 5974

页数：8

共 56 条

[41] Surface functionalization of SBA-15 by the solvent-free method [J].

Wang, YM ;

Wu, ZY ;

Zhu, JH .

JOURNAL OF SOLID STATE CHEMISTRY, 2004, 177 (10) :3815-3823

[42] Rapid functionalization of mesoporous materials: Directly dispersing metal oxides into as-prepared SBA-15 occluded with template [J].

Wang, YM ;

Wu, ZY ;

Shi, LY ;

Zhu, JH .

ADVANCED MATERIALS, 2005, 17 (03) :323-+

[43] In-situ coating of SBA-15 with MgO: Direct synthesis of mesoporous solid bases from strong acidic systems [J].

Wei, YL ;

Wang, YM ;

Zhu, JH ;

Wu, ZY .

ADVANCED MATERIALS, 2003, 15 (22) :1943-+

[44] Synthesis of heteroatom substituted SBA-15 by the "pH-adjusting" method [J].

Wu, S ;

Han, Y ;

Zou, YC ;

Song, JW ;

Zhao, L ;

Di, Y ;

Liu, SZ ;

Xiao, FS .

CHEMISTRY OF MATERIALS, 2004, 16 (03) :486-492

[45] Generating superbasic sites on mesoporous silica SBA-15 [J].

Wu, Zheng Ying ;

Jiang, Qi ;

Wang, Yi Meng ;

Wang, Hong Ji ;

Sun, Lin Bing ;

Shi, Li Ying ;

Xu, Jia Hui ;

Wang, Ying ;

Chun, Yuan ;

Zhu, Jian Hua .

CHEMISTRY OF MATERIALS, 2006, 18 (19) :4600-4608

[46]

Xie Y C., 1990, Adv. Cat., V37, P1

[47] Stepwise removal of the copolymer template from mesopores and micropores in SBA-15 [J].

Yang, CM ;

Zibrowius, B ;

Schmidt, W ;

Schüth, F .

CHEMISTRY OF MATERIALS, 2004, 16 (15) :2918-2925

[48] Consecutive generation of mesopores and micropores in SBA-15 [J].

Yang, CM ;

Zibrowius, B ;

Schmidt, W ;

Schüth, F .

CHEMISTRY OF MATERIALS, 2003, 15 (20) :3739-3741

[49] A novel synthetic route for negatively charged ordered mesoporous silica SBA-15 [J].

Yang, CM ;

Zibrowius, B ;

Schuth, F .

CHEMICAL COMMUNICATIONS, 2003, (14) :1772-1773

[50] Hydrothermal stability and catalytic activity of aluminum-containing mesoporous ethane-silicas [J].

Yang, QH ;

Li, Y ;

Zhang, L ;

Yang, J ;

Liu, J ;

Li, C .

JOURNAL OF PHYSICAL CHEMISTRY B, 2004, 108 (23) :7934-7937

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