Synthesis and identification of defective metal-organic frameworks based on chromium and investigation of their catalytic application in the carbon dioxide fixation reaction

This research focuses on the synthesis, characterization, and catalytic evaluation of defect-engineered chromium-based MOFs, specifically MIL-۱۰۱-Cr. Defects were introduced into the structure using benzoic acid as a modulator throughout the solvothermal synthesis method. The study explores the impact of these structural modifications on the catalytic efficiency of MIL-۱۰۱-Cr in CO۲ fixation reactions. Comprehensive characterization techniques, including XRD, SEM, BET, FTIR, and TPD, were utilized to analyze the structural, morphological, and thermal properties of the defective MOFs. Catalytic tests revealed significant improvements in CO۲ conversion and epoxide ring-opening reactions, with the defective MOFs achieving a conversion rate of up to ۹۰% under optimized conditions. These findings emphasize the promise of defect-engineered MIL-۱۰۱-Cr as a highly efficient catalyst for sustainable CO۲ utilization, contributing to advancements in green chemistry and environmental remediation.

کلیدواژه ها:

Metal-organic framework ، CO۲ fixation ، MIL-۱۰۱-Cr ، Structural defect ، Catalysis