Figure 3
Fe K-edge XANES spectra recorded on a 20 mM aqueous solution of FeIIICl3·6H2O (black dashed line) and on a 20 mM aqueous solution of FeIICl2 (red dashed line) in 0.1 M KCl electrolyte under an Ar atmosphere. Time-resolved Fe K-edge XANES spectra recorded during the reductive CPE at −0.8 V versus Pt of a 20 mM aqueous solution of FeIIICl3·6H2O in 0.1 M KCl electrolyte under an Ar atmosphere starting from 5 s after the beginning of CPE (blue line) and evolving over time (gray lines) to reach 90% conversion to Fe(II) (green line). |