Facile preparation of a hierarchically porous metal–organic nanocomposite with excellent catalytic performance

Abstract

A hierarchical porous MOF nanocrystal, hpCuL (L = 2,4,6-tris(3,5-dicarboxylatephenylamino)-1,3,5-triazine) was prepared via a facile gel-aging process. This nanocomposite exhibits high catalytic activity and stability for the reduction of 4-nitrophenol.

Template synthesis of hierarchical porous metal–organic frameworks with tunable porosity

“…3b, in addition to the intrinsic micropores (0.8-0.9 nm in diameter), the as-synthesized Cu-BTC_An contains pores with a broad range of pore sizes from 20 to over 100 nm, including regions of meso-and macroporous regions that are absent in C-Cu-BTC. Although there have been a couple of reports of Cu-BTC with both micro-and mesopores, 16,52 such hierarchical porous Cu-BTC material with pore diameters encompassing three ranges (micro-, meso-, and macropores) are, to the best of our knowledge, quite rare. Interestingly, the pore volume of Cu-BTC_An increases with increasing template concentration (inset of Fig.…”

Hierarchical porous metal–organic gels and derived materials: from fundamentals to potential applications

“…299 Due to the hierarchical porous structure of the nanocomposite, a high catalytic activity for the reduction of 4-nitrophenol (4-NP) in the presence of excess NaBH 4 was observed. 300 In terms of catalytic capacity, the fabricated catalyst outperformed Au-Ag and Au NPs-based composites This journal is © The Royal Society of Chemistry 2022 for this reduction. Cheng and colleagues synthesized a catalytically active composite with Ag NPs confined in a gel build up from Ag + and 2-amino-5-mercapto-1,3,4-thiadiazole (AMTD), namely AgNPs@Ag(I)-AMTD which catalyses the reduction of 4-NP and other nitroarenes.…”