Synthesis and application of MIL-101-NH2-CC/Melamine@Co2+ as a heterogeneous catalyst for preparation of 2,4,5-trisubstituted imidazoles and reduction of methylene blue

Nanometer-Sized MIL-101(Cr) Loaded with Metal Ions for Applications as a Nitrite Sensor with Enhanced Electrochemical Properties

“…However, despite its stability, MIL-101(Cr) exhibits limited catalytic activity attributed to the absence of active species with catalytic effects. 32 Thus, it is imperative to integrate the highly stable MIL-101(Cr) with catalytically active species to enhance its applicability in catalysis. Fortunately, MIL-101(Cr) possesses numerous coordinated unsaturated metal centers and a large specific surface area, 33−35 which makes it possible to introduce catalytically active materials.…”

“…However, most MOFs have the disadvantage of poor stability, which limits their applications. − Among the numerous MOFs, MIL-101­(Cr) shines as a distinguished stable MOF due to its formation from high-valent metal Cr 3+ and carboxylic acid ligands, which create stable coordination bonds. − Remarkably, MIL-101­(Cr) can withstand exposure to water or air for several months while maintaining its structural integrity and demonstrating exceptional reusability. − Therefore, MIL-101­(Cr) has attracted the attention of scientific researchers. However, despite its stability, MIL-101­(Cr) exhibits limited catalytic activity attributed to the absence of active species with catalytic effects . Thus, it is imperative to integrate the highly stable MIL-101­(Cr) with catalytically active species to enhance its applicability in catalysis.…”