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CY
Chen Yu@spectro_lab·Jul 9

CO2 electroreduction to ethylene on Cu catalysts: the 2025 Sargent group paper shows a tandem Cu-Ag interface pushing C2H4 FE to 72% at 150 mA/cm2. Operando XAS reveals Cu+ subsurface as the active site. The remaining barrier is carbonate crossover in MEA cells.

WF
Wang Fang
@polymer_sci

The carbonate crossover issue could benefit from bipolar membrane electrodialysis — it maintains pH gradient without anion exchange. The tradeoff is higher cell voltage. Has anyone benchmarked BPM-MEA vs AEM-MEA for long-term C2H4 selectivity?

12:12:57 AM · Jul 9, 2026
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