Hetero‑Solvent Microenvironment for Selective CO2 to Ethanol Electrolysis via Interfacial Water Control (IMAGE)
Caption
- A hetero-solvent-confined microenvironment regulates interfacial water during CO2 electrolysis on Cu, substantially suppressing hydrogen evolution by inhibiting water dissociation.
- Inhibited water dissociation suppresses ethylene formation, which requires solvent-mediated hydrogenation, thereby steering selectivity toward ethanol.
- This strategy is readily extended to Cu–Ag catalyst, enabling record-high ethanol production under neutral conditions while minimizing cell voltage by confining hetero-solvent within microenvironment rather than bulk electrolyte.
Credit
Dohun Kim, Suyun Lee, Seeun Jung, Jaemin Kim, Junsic Cho, Dong Ki Lee, Seoin Back*, Chang Hyuck Choi*, Chanyeon Kim*.
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CC BY-NC-ND