Bulk-immiscible CuAg alloy nanorods prepared by phase transition from oxides for electrochemical CO2 reduction. Issue 79 (16th September 2022)

• Record Type: Journal Article
• Authors: Yu, Yihong; Wang, Di; Hong, Yimeng; Zhang, Teng; Liu, Chuangwei; Chen, Jing; Qin, Gaowu; Li, Song
• Is Part Of: Chemical communications. Volume 58:Issue 79(2022)
• Page Start: 11163
• Page End: 11166
• Publication Date: 2022-09-16
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1039/d2cc04789f
• Languages: English
• ISSNs: 1359-7345

Abstract

Abstract : A solid-solution nanoalloy of bulk-immiscible CuAg synthesized by far-from-equilibrium electrochemical reduction from the parent oxide exhibits enhanced tandem catalysis for CO2 reduction. Abstract : Combining Cu and Ag in an alloy state holds promise to serve as a tandem catalyst for electrocatalytic CO2 reduction, but is restricted by immiscibility in the bulk. Here, a far-from-equilibrium method is developed to synthesize CuAg alloy by electroreduction of Cu2 Ag2 O3 under a large cathodic overpotential. The alloy state of CuAg is conducive to the formation of C2+ molecules. A high formation rate of C2 H4 of 159.8 μmol cm −2 h −1 is reached on the CuAg alloy nanorods, 2.3 times higher than that on pure Cu.