The metal–organic framework (MOF) MIL-101Cr was readily encapsulated by a very thin shell (around 30 nm) of hydrophobic mesoporous silica, which replicates the irregular shape of the MOF nanocrystals. Such a silica shell facilitates the diffusion of hydrophobic reactants with enhancement of the catalytic activity of the MOF and significantly improved catalytic stability of the MOF in the oxidation of indene.

中文翻译：

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围绕MIL-101Cr的疏水介孔二氧化硅纳米涂层，以增强催化活性和稳定性

金属-有机骨架（MOF）MIL-101Cr容易被疏水中孔二氧化硅的非常薄的外壳（约30 nm）封装，该外壳复制了MOF纳米晶体的不规则形状。这种二氧化硅壳促进了疏水反应物的扩散，同时增强了MOF的催化活性，并显着提高了MOF在茚氧化中的催化稳定性。