2-Methylimidazole-assisted synthesis of a two-dimensional MOF-5 catalyst with enhanced catalytic activity for the Knoevenagel condensation reaction
2-Methylimidazole-assisted synthesis of a two-dimensional MOF-5 catalyst with enhanced catalytic activity for the Knoevenagel condensation reaction
复制标题
2-甲基咪唑辅助合成二维 MOF-5 催化剂，增强 Knoevenagel 缩合反应催化活性
DOI：
10.1039/c8ce00954f
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发表时间：
2018-09-28
期刊：
影响因子：
3.1
通讯作者：
Wang, Jide
中科院分区：
文献类型：
--
作者：
Guo, Changyan;Zhang, Yonghong;Wang, Jide
我们报道了一种简单的策略，以2-甲基咪唑（2-MI）作为配位调节剂，制备厚度为4 nm的二维（2D）MOF-5。2-MI可以通过竞争配位抑制MOF-5在垂直方向上的生长，得到二维MOF-5。一系列测试结果表明，2-MI可以通过配位或吸附的方式存在于MOF-5纳米片的晶体结构中。此外，在M0 F-5纳米片中存在更多暴露的催化活性位点和弱碱性位点（-NH）有利于增强它们在Knoevenagel缩合中的催化性能。
We report a facile strategy to fabricate two-dimensional (2D) MOF-5 with a thickness of 4 nm with 2-methylimidazole (2-MI) as a coordination regulator. 2-MI can inhibit the growth of MOF-5 in the vertical direction by competitive coordination to obtain 2D MOF-5. A series of test results revealed that 2-MI can exist in the crystal structure of MOF-5 nanosheets by coordination or adsorption. In addition, the presence of more exposed catalytically active sites and of weak basic sites (-NH) in MOF-5 nanosheets is beneficial for enhancing their catalytic performance in Knoevenagel condensation.