Fig. 1: COR performance on CuAg and structural information of Cu and Ag.

a Faradaic efficiency (FE) of the CuAg samples in this work and reference work34. b XEDS elemental mapping of as-prepared Cu/Ag precursors and post-reacted CuAg catalysts. c Phase diagram of CuAg. The error bars represent standard deviations from at least three independent measurements. Relevant source data are provided as a Source Data file.