Potential-Driven In Situ Formation of CuS@Cu2Se with Se-Vacancy-Rich for Steering the CO2 Electroreduction Path from HCOOH to C2H5OH

Copper chalcogenides are susceptible to electrochemical reconstruction, thus posing challenges to understand the precise structure-function relationships during CO2 electroreduction reaction (CO2RR). Here, we synthesize a hierarchical core-shell CuS@CuSe catalyst, exhibiting...