Fig. 2: Formation mechanism of ZnO1-x-Cu2O/Cu upon H2-C2H5OH treatment. | Nature Communications

Fig. 2: Formation mechanism of ZnO1-x-Cu2O/Cu upon H2-C2H5OH treatment.

From: In situ stabilization of Cu+ for CO2 Electroreduction via Environmental-molecules-induced ZnO1-x shield

Fig. 2

a Operando normalized XANES spectra of ZnO1-x-Cu2O/Cu catalysts during H2-C2H5OH treatment and references of CuO, Cu2O and Cu foil at the Cu K edge, where ZnO/CuO@H2 represents the sample during H2 treatment, and ZnO1-x/Cu@C2H5OH represents the sample during C2H5OH treatment. b Edge-shift quantification of Cu oxidation states during H2-C2H5OH treatment. c Operando normalized XANES spectra of ZnO1-x-Cu2O/Cu catalysts during H2-C2H5OH treatment and references of ZnO and Zn foil at the Zn K-edge. d In situ DRIFTS Spectra of C2H5OH on ZnO1-x-Cu2O/Cu catalyst. e Bader charge calculation and charge density analysis of ZnO/Cu in H2 and C2H5OH atmosphere, respectively. f Energy changes associated with the ethoxy-induced the dispersion of ZnO1-x and the formation mechanism of Cu+. g Schematic diagram of the catalyst structural evolution during C2H5OH treatment. Relevant source data are provided as a Source Data file.

Back to article page