A Route to Bimodal Micro-Mesoporous Metal-Organic Frameworks Nanocrystals
A Route to Bimodal Micro-Mesoporous Metal-Organic Frameworks Nanocrystals
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DOI：
10.1021/cg201483y
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发表时间：
2012-02-01
影响因子：
3.8
通讯作者：
Trong-On Do
中科院分区：
文献类型：
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作者：
Minh-Hao Pham;Gia-Thanh Vuong;Trong-On Do
为了克服结晶微孔金属有机框架（M0 F）的孔径限制（孔径<2nm），可以减小晶体尺寸或在M0 F晶体中产生中孔通道。我们的方法做到了这两点，在乙酸的存在下，使用溶剂热非离子表面活性剂模板组装的微块，这不仅在微孔MOF纳米晶体内产生明确的中孔通道，而且还提供了高结晶度。选择两个实施例来说明我们使用基于[Cu-3（BTC）（2）]和[Cu-2（HBTB）（2）]的MOF（H3 BTC = 1，3，5-苯三羧酸; H3 BTB = 1，3，5-三[4-羧基苯基]苯）的方法。
To overcome the pore size constraints (pore size < 2 nm) of crystalline microporous metal organic frameworks (MOFs), one can either reduce crystal size or create mesopore channels in the MOF crystals. Our approach does both, using a solvothermal nonionic surfactant-templated assembly of microblocks in the presence of acetic acid, which not only generates well-defined mesopore channels within the microporous MOF nanocrystals but also gives high crystallinity. Two examples were selected to illustrate our approach using [Cu-3(BTC)(2)]- and [Cu-2(HBTB)(2)]-based MOFs (H3BTC = 1,3,5-benzenetricarboxylic acid; H3BTB = 1,3,5-Tris[4-carboxyphenyl]benzene).