MIL-53(Al) mesostructured metal-organic frameworks

被引：104

作者：

Do Xuan-Dong ^{[1
]}

Vinh-Thang, Hoang ^{[1
]}

Kaliaguine, Serge ^{[1
]}

机构：

[1] Univ Laval, Fac Sci & Engn, Dept Chem Engn, Quebec City, PQ G1V 0A6, Canada

来源：

MICROPOROUS AND MESOPOROUS MATERIALS | 2011年 / 141卷 / 1-3期

基金：

加拿大自然科学与工程研究理事会;

关键词：

Metal-organic frameworks; MOFs; MIL-53; Hierarchical pore structure; MESOPOROUS MOLECULAR-SIEVES; ZEOLITE SINGLE-CRYSTALS; COORDINATION POLYMERS; HYDROGEN-ADSORPTION; DIRECTED SYNTHESIS; CATALYSTS; SILICA; FAMILY; SEEDS;

D O I：

10.1016/j.micromeso.2010.07.024

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Hierarchically mesostructured metal-organic frameworks (designated here as L-MOFs) were designed and synthesized using block copolymers (P123 and F127) as structure directing agents under solvothermal synthesis conditions. Porous mesostructure of L-MOF materials was established from nitrogen adsorption-desorption isotherms (BET) at 77 K, high-resolution transmission electron micrograps (HRTEM), and small-angle X-ray diffraction (SAXD) patterns. MOF crystal structures were characterized by wide-angle X-ray diffraction (WAXD) and Fourier transform infrared spectroscopy (FTIR). Results demonstrated that L-MOF materials have well-defined trimodal pore size distributions showing micro-, and simultaneous existence of up to two mesopore channel systems. L-MOF materials have two kinds of mesoporous phases: one has disordered wormhole-like structure with pore size diameter around 4 nm, and the other one, only appearing in L-MOF(1) and L-MOF(2) (corresponding to P123 and F127), has a needle-like shape with BJH pore sizes are of 7.6 and 5.4 nm, respectively. (C) 2010 Elsevier Inc. All rights reserved.

引用

页码：135 / 139

页数：5

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