Boosting C2+ Alcohols Selectivity and Activity in High-Current CO Electroreduction using Synergistic Cu/Zn Co-Catalysts.

The electrosynthesis of multi-carbon (C2+) alcohols, specifically ethanol and n-propanol through CO electroreduction (CORR) in H2O, presents a sustainable pathway for intermittent renewable energy storage and a low-carbon economy. However, achieving high selectivity for alcohol production at industrial current densities is kinetically hampered by side reactions such as ethylene generation and hydrogen evolution reaction, which result from competing adsorption of *CO and *H. In this study, we developed a Cu/Zn alloy catalyst to simultaneously enhance the activity and selectivity for alcohol production by increasing CO capture capacity and enriching active hydrogen on Cu sites.

Fluorinating All Interfaces Enables Super-Stable Solid-State Lithium Batteries by In Situ Conversion of Detrimental Surface LiCO.

Li-stuffed battery materials intrinsically have surface impurities, typically LiCO, which introduce severe kinetic barriers and electrochemical decay for a cycling battery. For energy-dense solid-state lithium batteries (SSLBs), mitigating detrimental LiCO from both cathode and electrolyte materials is required, while the direct removal approaches hardly avoid LiCO regeneration. Here, a decarbonization-fluorination strategy to construct ultrastable LiF-rich interphases throughout the SSLBs by in situ reacting LiCO with LiPF at 60 °C is reported.