A stable nanotubular metal–organic framework as heterogeneous catalyst for efficient chemical fixation of CO₂

Abstract

The incorporation of high-density and easily accessible Lewis acid sites is of great significance to obtain high catalytic activity in CO2 cycloaddition reaction of epoxides. Nanotubular metal−organic frameworks (NTMOFs) have...

Exploring the Performance Improvement for CO2 Chemical Fixation in Zn/ZnMg-MOFs

“…Some heterogeneous catalysts, such as metal oxides, zeolites, organocatalysts, and carbon nitride materials, , mostly require high temperature and high pressure. Metal–organic frameworks (MOFs), self-assembled by metal ions or clusters of metals with organic ligands, are a kind of highly promising heterogeneous catalyst due to their porosity and large specific surface area. − In recent years, numerous MOF-based catalysts have also shown remarkable progress in the cycloaddition of carbon dioxide to epoxides, such as ZnMOF-1-NH 2 , Zn-2PDC, Zn-DAT, Cu-URJC-8, Cd-TCA, {[Co­(L)]·DMF·2H 2 O} n , {Ni­(muco)­(bpa)­(2H 2 O)}·2H 2 O, and so on. − However, the catalytic performance of the MOF-based catalysts reported for CO 2 chemical fixation remains unsatisfactory in terms of recyclability, turnover frequency (TOF), and stability. , Therefore, a necessity emerges to develop efficient heterogeneous catalysts for the chemical fixation of CO 2 , delivering both high conversion and enduring stability.…”

Thiazolo[5,4-d]thiazole-Based Metal–Organic Framework for Catalytic CO2 Cycloaddition and Photocatalytic Benzylamine Coupling Reactions

“…Several heterogeneous catalysts have been developed for the cyclization of CO 2 and various epoxide compounds. − However, most of the reported carbon dioxide cycloaddition catalyst systems need to be carried out under high-temperature and high-pressure conditions to obtain good yields of cyclic carbonates. In order to achieve CO 2 fixation greener and environmentally friendly, it is necessary to design a new MOF-based heterogeneous catalyst that can catalyze the conversion of carbon dioxide into cyclic carbonates under mild conditions. − …”