METHOD OF PRODUCING FORMIC ACID

摘要

The invention concerns a method of producing formic acid from carbon dioxide and water by electroreduction of the CO2 in the gaseous phase. The method uses electrochemical cells of which the cathode consists of a conductive porous solid and an active layer containing dispersed metal nanoparticles and catalysing the reaction selectively to formic acid. The resulting formic acid is then separated from the residual CO2 by crystallization, the CO2 being recycled to the electrochemical cell.