Fig. 4: Characterizations of OMe-PhCu electrodes before and post CO2RR.
From: σ-π dative bond stabilizing copper active site drives CO2 electrocatalysis to hydrocarbon
a In situ Raman spectra of CO2RR over OMe-PhCu electrode. b Cu 2p XPS spectra. c Ex situ XANES spectra. d The first-order derivatives of the XANES spectra in (c). e FTIR spectra. f XRD patterns. The electrodes after CO2RR were obtained at 200 mA cm−2 with 1 h electrolysis. Source data are provided as a Source Data file.
