Chemical, structural, and catalytic characteristics of Al-MCM-41 prepared by pH-controlled synthesis

被引：52

作者：

Lindlar, B ^{[1
]}

Kogelbauer, A ^{[1
]}

Prins, R ^{[1
]}

机构：

[1] ETH Zurich, Tech Chem Lab, CH-8092 Zurich, Switzerland

来源：

MICROPOROUS AND MESOPOROUS MATERIALS | 2000年 / 38卷 / 2-3期

关键词：

MCM-41; pH adjustment; thermal stability; Friedel-Crafts acylation;

D O I：

10.1016/S1387-1811(99)00291-7

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Detailed investigations on the effect of pH adjustment at a value of 11 during Al-MCM-41 synthesis with regard to changes in structure, chemical composition, and catalytic activity are described. Long-range order (XRD), surface area (BET), and pore size distribution (BJH) improved remarkably when the pH of the synthesis gel was adjusted intermediately. The Si/Al ratio (AAS) and the yield of Al-MCM-41 nearly doubled in the case of a threefold pH adjustment. The catalytic activity for Friedel-Crafts acylation of 2-methoxynaphthalene was about three times higher for pH-adjusted samples. These effects became less pronounced with increasing number of adjustments. Comparable results were obtained when acetic, sulfuric, nitric, or citric acid was used for the pH adjustment. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：167 / 176

页数：10

共 50 条

[1] Synthesis and characterization of bimetallic Ga,Al-MCM-41 and Fe,Al-MCM-41
Bîrjega, R
Nenu, C
Ganea, R
Pop, G
Serban, S
Blasco, T
IMPACT OF ZEOLITES AND OTHER POROUS MATERIALS ON THE NEW TECHNOLOGIES AT THE BEGINNING OF THE NEW MILLENNIUM, PTS A AND B, 2002, 142 : 1331 - 1338
[2] Characteristics of Al-MCM-41 supported Pt catalysts: effect of Al distribution in Al-MCM-41 on its catalytic activity in naphthalene hydrogenation
Park, KC
Yim, DJ
Ihm, SK
CATALYSIS TODAY, 2002, 74 (3-4) : 281 - 290
[3] Synthesis, characterization and catalytic performance of Al-MCM-41 mesoporous materials
Gonzalez, F.
Pesquera, C.
Perdigon, A.
Blanco, C.
APPLIED SURFACE SCIENCE, 2009, 255 (17) : 7825 - 7830
[4] The structural comparison between Al-MCM-41 and B-MCM-41
Adjdir, Mehdi
Ali-Dahmane, Tewfik
Weidler, Peter G.
COMPTES RENDUS CHIMIE, 2009, 12 (6-7) : 793 - 800
[5] Catalytic Synthesis of Dioctyl Phthalate over Al-MCM-41 Molecular Sieves
Zhou, Huafeng
Yang, Yongjin
Zhang, Jinsong
EMERGING FOCUS ON ADVANCED MATERIALS, PTS 1 AND 2, 2011, 306-307 : 1741 - 1746
[6] Synthesis and catalytic-isomerization performance of Al-MCM-41 mesoporous sieves
Guo Jian-wei
Li Long-huan
Liu Sa
Cui Yi-hua
Deng Zhi-cheng
Yu Lin
SPECTROSCOPY AND SPECTRAL ANALYSIS, 2007, 27 (07) : 1368 - 1371
[7] Synthesis and catalytic-isomerization performance of Al-MCM-41 mesoporous sieves
Guo, Jian-Wei
Li, Long-Huan
Liu, Sa
Cui, Yi-Hua
Deng, Zhi-Cheng
Yu, Lin
Guang Pu Xue Yu Guang Pu Fen Xi/Spectroscopy and Spectral Analysis, 2007, 27 (07): : 1368 - 1372
[8] CATALYTIC DISPROPORTIONATION OF METHYLTRICHLOROSILANE BY AL-MCM-41 TO PREPARE DICHLORODIMETHYLSILANE
Fu, Qiong
Zhang, Ning
Zhang, Jun
Hong, Sanguo
PHOSPHORUS SULFUR AND SILICON AND THE RELATED ELEMENTS, 2012, 187 (10) : 1183 - 1194
[9] Is the catalytic activity of Al-MCM-41 sufficient for hydrocarbon cracking?
Koch, H
Reschetilowski, W
MICROPOROUS AND MESOPOROUS MATERIALS, 1998, 25 (1-3) : 127 - 129
[10] Al-MCM-41 and Pt/H3PW12O40/Al-MCM-41: structure characterization and catalytic properties
Wang, J. A.
Chen, L. F.
Norena, L. E.
ZEOLITES AND RELATED MATERIALS: TRENDS, TARGETS AND CHALLENGES, PROCEEDINGS OF THE 4TH INTERNATIONAL FEZA CONFERENCE, 2008, 174 : 1259 - 1262

← 1 2 3 4 5 →