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Metal–Organic Framework Based upon the Synergy of a Brønsted Acid Framework and Lewis Acid Centers as a Highly Efficient Heterogeneous Catalyst for Fixed-Bed Reactions

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journal contribution
posted on 01.04.2015, 00:00 by Baiyan Li, Kunyue Leng, Yiming Zhang, James J. Dynes, Jian Wang, Yongfeng Hu, Dingxuan Ma, Zhan Shi, Liangkui Zhu, Daliang Zhang, Yinyong Sun, Matthew Chrzanowski, Shengqian Ma
We report a strategy of combining a Brønsted acid metal–organic framework (MOF) with Lewis acid centers to afford a Lewis acid@Brønsted acid MOF with high catalytic activity, as exemplified in the context of MIL-101-Cr-SO3H·Al­(III). Because of the synergy between the Brønsted acid framework and the Al­(III) Lewis acid centers, MIL-101-Cr-SO3H·Al­(III) demonstrates excellent catalytic performance in a series of fixed-bed reactions, outperforming two benchmark zeolite catalysts (H-Beta and HMOR). Our work therefore not only provides a new approach to achieve high catalytic activity in MOFs but also paves a way to develop MOFs as a new type of highly efficient heterogeneous catalysts for fixed-bed reactions.