CARBON DIOXIDE REDUCTION IN BIPHASIC AQUEOUS-IONIC LIQUID SYSTEMS BY PRESSURIZED HYDROGEN

Abstract

This work reports the hydrogenation of carbon dioxide/inorganic carbonate salts to formic acid/formate in two phase systems comprising an ionic phase, in which the catalyst is immobilized, and an aqueous phase in which the carbonates and formate are confined, is reported. The reactions were followed in situ by multinuclear NMR. Pressurized H₂ gas was used for the reduction.

Keywords:

• Carbon dioxide reduction
• Hydrogenation under pressure
• Biphasic system
• Room temperature ionic liquid
• RTIL
• Ruthenium phosphines
• Organometallic catalyst