Sun Xiaowen, Gu Yun-Feng, Zhang Xiao-Min, Shen Yan, Wang Dan-Hong, Zhang Shu-Ming, Yu Mei-Hui, Chang Ze
School of Materials Science and Engineering, Nankai University, Tianjin 300350, China.
School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China.
Dalton Trans. 2024 Apr 2;53(14):6157-6161. doi: 10.1039/d4dt00154k.
In order to improve the oxidative desulfurization (ODS) performance of MOF materials, an effective way is to convert a microporous MOF into a hierarchical porous MOF (HP-MOF) by utilizing the linker selective retention strategy. Herein, UiO-66 with the introduction of an unstable linker ligand (dihydro-1,2,4,5-tetrazine-3,6-dicarboxylate, dhtz) can selectively remove dhtz ligands to form HP-MOF (HP-UiO-66-dhtz) through heat treatment at high temperature. While maintaining the original structure of UiO-66, HP-UiO-66-dhtz features mesopores and abundant Lewis acid sites, showing excellent ODS performance for diphenylthiophene (DBT).
为了提高金属有机框架（MOF）材料的氧化脱硫（ODS）性能，一种有效的方法是通过利用连接体选择性保留策略将微孔MOF转化为分级多孔MOF（HP-MOF）。在此，引入不稳定连接体配体（二氢-1,2,4,5-四嗪-3,6-二羧酸酯，dhtz）的UiO-66可以通过高温热处理选择性地去除dhtz配体，从而形成HP-MOF（HP-UiO-66-dhtz）。在保持UiO-66原始结构的同时，HP-UiO-66-dhtz具有中孔和丰富的路易斯酸位点，对二苯并噻吩（DBT）表现出优异的ODS性能。
