Fig. 5: Electrolysis of PCO2 in narrow-gap aqueous flow cell.
From: Pressure dependence in aqueous-based electrochemical CO2 reduction
a Schematic of the high-pressure narrow-gap aqueous flow cell. b FEs and partial current densities at total current densities of 200, 300, 400 and 500 mA cm−2 on Cu/PPy in the high-pressure narrow-gap aqueous flow cell fed by 50 bar PCO2. No other liquid products were detected. j denotes the current density. c Prolonged electrolysis of 50 bar PCO2 to formate on Cu/PPy in the narrow-gap aqueous flow cell at a constant current density of 400 mA cm−2. The full cell voltage and formate FE were well retained over 12 h continuous operation.
