Highly mesoporous metal-organic framework assembled in a switchable solvent

被引：220

作者：

Peng, Li ^{[1
]}

Zhang, Jianling ^{[1
]}

Xue, Zhimin ^{[1
]}

Han, Buxing ^{[1
]}

Sang, Xinxin ^{[1
]}

Liu, Chengcheng ^{[1
]}

Yang, Guanying ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Chem, CAS Key Lab Colloid Interface & Chem Thermodynam, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China

来源：

NATURE COMMUNICATIONS | 2014年 / 5卷

基金：

中国国家自然科学基金;

关键词：

GAS-EXPANDED LIQUIDS; X-RAY-SCATTERING; REVERSE MICELLES; COMPRESSED CO2; CATALYSIS; COORDINATION; CU-3(BTC)(2); ACTIVATION; ADSORPTION; SEPARATION;

D O I：

10.1038/ncomms5465

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The mesoporous metal-organic frameworks are a family of materials that have pore sizes ranging from 2 to 50 nm, which have shown promising applications in catalysis, adsorption, chemical sensing and so on. The preparation of mesoporous metal-organic frameworks usually needs the supramolecular or cooperative template strategy. Here we report the template-free assembly of mesoporous metal-organic frameworks by using CO2-expanded liquids as switchable solvents. The mesocellular metal-organic frameworks with large mesopores (13-23 nm) are formed, and their porosity properties can be easily adjusted by controlling CO2 pressure. Moreover, the use of CO2 can accelerate the reaction for metal-organic framework formation from metal salt and organic linker due to the viscosity-lowering effect of CO2, and the product can be recovered through CO2 extraction. The as-synthesized mesocellular metal-organic frameworks are highly active in catalysing the aerobic oxidation of benzylic alcohols under mild temperature at atmospheric pressure.

引用

页数：7