Microwave pyrolysis-engineered MOFs derivatives for efficient preferential CO oxidation in H2-rich stream

The versatile metal-organic framework (MOF) derivatives are achieved via microwave pyrolysis. The dipole vibration thermogenesis of molecules by microwave pyrolysis overcomes the issues of high energy consumption, slow heating rate, unregulated at the molecular-level, metal nanoclusters particles migration and coalescence caused by traditional thermal pyrolysis. For solving the poor microwave absorption of MOFs, a tandem microwave pyrolysis strategy is employed herein. Ligand carbonization enhances the conduction loss of microwaves and becomes a highly dispersed microwave heating source, which effectively inhibits the agglomeration. The CuCeOx catalysts obtained through this strategy retain the merits of bimetallic CuCe-MOFs with highly dispersed active species, and exhibit outstanding catalytic activities with the 100% conversion of CO being achieved at 75 degrees C for the preferential CO oxidation in H-2-rich stream. These results demonstrate that the microwave pyrolysis-engineered MOFs uniformity has established catalyst with highly dispersed active species. (C) 2022 Elsevier Ltd. All rights reserved.

Automated summary

Versatile metal-organic framework (MOF) derivatives are synthesized using microwave pyrolysis, which overcomes the limitations of traditional thermal pyrolysis and achieves catalysts with highly dispersed active species.