In this work, we report the lowest temperature CO oxidation catalyst supported on Metal-Organic Frameworks (MOFs). We have developed a facile, general and effective approach based on microwave irradiation for the incorporation of Pd nanoparticles’ catalyst within the Ce-MOF. The resulting Pd/Ce-MOF is a unique catalyst capable of CO oxidation at modest temperatures and also of efficient uptake of the product CO2 gas at low temperatures. The observed catalytic activity towards CO oxidation is significantly higher than other reported metal nanoparticles supported on MOFs. The high activity of the Pd/Ce-MOF catalyst is attributed to the presence of Ce(III) and Ce(IV) ions within the metal-organic framework support. Pd nanoparticles supported on the Ce-MOF store oxygen in the form of a thin Pd oxide layer at the particle-support interface in addition to the oxygen stored on the Ce(III)/Ce(IV) centers. Oxygen from these reservoirs can be released during CO oxidation at 373 K. At lower temperatures (273 K), the Pd/Ce-MOF has a significant CO2 uptake of 3.5 mmol/g.

Palladium nanoparticles supported on Ce-metal organic framework for efficient CO oxidation and low-temperature CO2 capture

254th National Meeting (2017)

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