Fig. 5: In situ XAFS measurements.
From: In situ tuning of platinum 5d valence states for four-electron oxygen reduction

In situ Pt L3-edge XANES spectra of Pt1-CuOx/Cu (a) and PtSA-CN (b). c The d-band electrons at different conditions of Pt1-CuOx/Cu and PtSA-CN. d In situ XANES spectra at Cu K-edge of Pt1-CuOx/Cu. e In situ Pt L3-edge EXAFS spectra of Pt1-CuOx/Cu. The error bars were estimated by the standard deviations of three individual calculations.