Zhang Bing, Bai Xiaojue, Wang Sha, Li Linlin, Li Xuemin, Fan Fuqiang, Wang Tieqiang, Zhang Liying, Zhang Xuemin, Li Yunong, Liu Yunling, Chen Junyi, Meng Fanbao, Fu Yu
Department of Chemistry, College of Sciences, Northeastern University, Shenyang 110819, P.R. China.
State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, China.
ACS Appl Mater Interfaces. 2021 Jul 14;13(27):32175-32183. doi: 10.1021/acsami.1c07188. Epub 2021 Jun 29.
Metal-organic frameworks (MOFs), as a chemical platform, combined with multifunctional polymers are of interest in catalytic applications, which can not only inherit the outstanding properties of the two components but also lead to unique synergistic effects. Nonetheless, most MOFs possess varying degrees of water instability, which limits their real application. Herein, we fabricated highly hydrophobic MOF/polymer composites a universal post-synthetic polymerization strategy as efficient catalysts. Polyaniline (PANI) was first hybridized with MOFs by vapor deposition polymerization, and then, hydrophobic molecules were grafted to the PANI by a covalent linking process, thereby forming a superhydrophobic MOF/PANI hybrid material (MOF/PANI-shp). The resultant MOF/PANI-shp not only obtains superior moisture/water resistance without significantly disturbing the original features but also exhibits a novel catalytic selectivity in styrene oxidation because of the accessible sites and synergistic effects. Such a synthetic strategy for the MOF/polymer catalyst opens a new avenue for the design of a unique catalyst with outstanding catalytic efficiency, selectivity, and stability.
金属有机框架材料（MOFs）作为一种化学平台，与多功能聚合物相结合，在催化应用中备受关注，因为它不仅可以继承两种组分的优异性能，还能产生独特的协同效应。然而，大多数MOFs具有不同程度的水不稳定性，这限制了它们的实际应用。在此，我们通过一种通用的后合成聚合策略制备了高度疏水的MOF/聚合物复合材料作为高效催化剂。首先通过气相沉积聚合将聚苯胺（PANI）与MOFs杂化，然后通过共价连接过程将疏水分子接枝到PANI上，从而形成超疏水的MOF/PANI杂化材料（MOF/PANI-shp）。所得的MOF/PANI-shp不仅在不显著干扰原始特性的情况下获得了优异的防潮/防水性能，而且由于可及位点和协同效应，在苯乙烯氧化反应中表现出新颖的催化选择性。这种用于MOF/聚合物催化剂的合成策略为设计具有出色催化效率、选择性和稳定性的独特催化剂开辟了一条新途径。
