2-Methylimidazole-assisted synthesis of a two-dimensional MOF-5 catalyst with enhanced catalytic activity for the Knoevenagel condensation reaction. Issue 36 (6th September 2018)

• Record Type: Journal Article
• Authors: Guo, Changyan; Zhang, Yonghong; Zhang, Li; Zhang, Yi; Wang, Jide
• Is Part Of: CrystEngComm. Volume 20:Issue 36(2018)
• Page Start: 5327
• Page End: 5331
• Publication Date: 2018-09-06
• Subjects: Crystals -- Periodicals; Crystal growth -- Periodicals; Crystallography -- Periodicals; Cristaux -- Périodiques; Cristaux -- Croissance -- Périodiques; Cristallographie -- Périodiques; 548
• DOI: 10.1039/c8ce00954f
• Languages: English
• ISSNs: 1466-8033

Abstract

Abstract : A novel and facile strategy was developed for the synthesis of a 2D MOF-5 catalyst with 2-methyimidazole as regulation reagent and a Lewis basic site, which showed excellent catalytic activity in Knoevenagel condensation. Abstract : 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.