Fixation of Both O_2 and CO_2 from Air by a Crystalline Palladium Complex Bearing N-Heterocyclic Carbene Ligands

摘要

Fixation of CO_2 is generally achieved in biological systems through the dark reaction (Calvin-Benson cycle) of photosynthesis.This process can fix a low concentration (0.035%) of CO_2 from air at room temperature.Many elemental reactions of CO_2 with transition metal complexes and catalytic reactions of CO_2 with organic substrates as well as CO_2 sensing by use of lithium-ion conductor have been developed to date.Most of these reactions,however,usually require a high pressure of CO_2 or a CO_2 atmosphere in a reaction vessel,in contrast to the case of biological CO_2 fixation.Otherwise,a high temperature of the device is necessary.