Prof.ZHANG Tierui and Prof.WANG Haotian recently demonstrated a room temperature electrochemical acetylene reduction strategy at the copper-based triple-phase interfaces[Nat.Catal.,2021,4(7),565-574].The conversion rate of acetylene reached 99.9%with over 90%ethylene selectivity,outperforming most of thermal hydrogenation investigations.Using water as the clean proton source and discharging oxygen on the counter electrode as the only by-product,the concentration of acetylene was successfully reduced from 5000 ppm(parts per million)to less than 1 ppm in ethylene abundant gas flow.
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