Fig. 4: Selectivity of membrane and long-time stability test.
From: Porous membranes enable selective and stable zero-gap acidic CO2 electrolysers
A The operation stability of FE and voltage for Nafion membrane and Porous membrane under 100 mA cm−2 (Electrolyte: 0.05 M Cs2SO4 + 0.5 M H2SO4). B The operation stability of FE and voltage for Nafion membrane and Porous membrane under 100 mA cm−2 (Electrolyte: 0.5 M Cs2SO4 + 0.005 M H2SO4). C The FE of CO comparison among membranes made of different materials under 100 mA cm−2 using 0.25 M Cs2SO4 (pH adjusted to 2 using H2SO4). D The set-up diagram of 100 cm2 MEA electrolyzer. E The long-term operation stability of electrolyzers of different size under 100 mA cm−2 using 0.25 M Cs2SO4 (pH adjusted to 2 using H2SO4). All the voltages are full cell voltages without iR correction. Source data are provided as a Source Data file.
