Fig. 3: Operando XAS experimental methods and results of Cu-based catalysts in each cell configuration. | Nature Communications

Fig. 3: Operando XAS experimental methods and results of Cu-based catalysts in each cell configuration.

From: Exploring the influence of cell configurations on Cu catalyst reconstruction during CO2 electroreduction

Fig. 3

a Operando XAS spectra collection methods for the H-type cell. b Average oxidation states derived from the XANES spectra of the Cu2O cube and Cu2O aggregate samples in the H-type cell. FT-EXAFS spectra of the (c) Cu2O cube and (d) Cu2O aggregate samples in the H-type cell, respectively (Cu foil was scaled by 0.4 for better illustration). e Operando XAS spectra collection methods for the MEA cell. f Average oxidation states derived from the XANES spectra of the Cu2O cube and Cu2O aggregate samples in the MEA cell. Time-resolved FT-EXAFS spectra of the (g) Cu2O cube and (h) Cu2O aggregate samples in the MEA cell, respectively.

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