Huang Ning, Drake Hannah, Li Jialuo, Pang Jiandong, Wang Ying, Yuan Shuai, Wang Qi, Cai Peiyu, Qin Junsheng, Zhou Hong-Cai
Department of Chemistry, Texas A&M University, College Station, TX, 77842-3012, USA.
College of Chemistry, Tianjin Normal University, Tianjin, 300387, China.
Angew Chem Int Ed Engl. 2018 Jul 16;57(29):8916-8920. doi: 10.1002/anie.201803096. Epub 2018 Jun 14.
The development of porous composite materials is of great significance for their potentially improved performance over those of individual components and extensive applications in separation, energy storage, and heterogeneous catalysis. Now mesoporous metal-organic frameworks (MOFs) with macroporous melamine foam (MF) have been integrated using a one-pot process, generating a series of MOF/MF composite materials with preserved crystallinity, hierarchical porosity, and increased stability over that of melamine foam. The MOF nanocrystals were threaded by the melamine foam networks, resembling a ball-and-stick model overall. The resulting MOF/MF composite materials were employed as an effective heterogeneous catalyst for the epoxidation of cholesteryl esters. Combining the advantages of interpenetrative mesoporous and macroporous structures, the MOF/melamine foam composite has higher dispersibility and more accessibility of catalytic sites, exhibiting excellent catalytic performance.
多孔复合材料的发展对于其相较于单个组分可能具有的性能提升以及在分离、能量存储和多相催化等方面的广泛应用具有重要意义。目前，介孔金属有机框架（MOF）与大孔三聚氰胺泡沫（MF）已通过一锅法进行整合，生成了一系列具有保留结晶度、分级孔隙率且比三聚氰胺泡沫稳定性更高的MOF/MF复合材料。MOF纳米晶体被三聚氰胺泡沫网络贯穿，整体上类似于球棒模型。所得的MOF/MF复合材料被用作胆固醇酯环氧化反应的有效多相催化剂。结合相互贯穿的介孔和大孔结构的优势，MOF/三聚氰胺泡沫复合材料具有更高的分散性和更多的催化位点可及性，表现出优异的催化性能。
