Zn‐Organic Batteries for the Semi‐Hydrogenation of Biomass Aldehyde Derivatives and Concurrently Enhanced Power Output

Abstract Electricity generation and chemical productions are both critically important for the sustainable development of modern civilization. Here, a novel bifunctional Zn‐organic battery has been established for the concurrent enhanced electricity output and semi‐hydrogenations of a series of biomass aldehyderivatives, for the high value‐added chemical syntheses. Among them, the typical Zn‐furfural (FF) battery equipped with Cu foil‐supported edge‐enriched Cu nanosheets as cathodic electrocatalyst (Cu NS/Cu foil), provides a maximum current density and power density of 14.6 mA cm −2 and 2.00 mW cm −2 , respectively, and in the meantime, produces high value product, furfural alcohol (FAL). The Cu NS/Cu foil catalyst exhibits excellent electrocatalytic performance of ≈93.5 % conversion ratio and ≈93.1 % selectivity for FF semi‐hydrogenation at a low potential of ‐1.1 V vs. Ag/AgCl by using H 2 O as H source, and shows impressive performance for various biomass aldehyderivatives semi‐hydrogenation.