(232a) High Performance CO2 Electrolyzers

This paper will consider the combination of CO₂ electrolysis and GTL processing as a way to convert waste CO₂ into useful fuels and chemicals. First electrolysis is used to convert the CO₂ to CO and O₂

The main emphasis of the talk will be on the CO₂ electrolysis. A cell with optimized cathode and anion exchange membrane has run for over 3500 hrs at 200 mA/cm² and 3V at room temperature with stable high selectivity of ~95%. Currents rise to 600 mA/cm² at 50°C. A new flow-field design has been created that allows large cells to be easily manufactured Solid. Initial results on coupling the devices to fuel production systems will also be discussed. These results pave the way for the commercialization of CO₂ conversion to useful fuels.