fig12

Figure 12. High-resolution XPS spectra of (A) Co 2p and (B) O 1s of Co₈Ce₂O_x. Operando Raman spectra of (C) CoO_x and (D) Co₈Ce₂O_x under applied potential 1.60 V vs. RHE for HMF oxidation in pH = 13.0 electrolyte. The Lorentz peak function fit of (E) CoO_x and (F) Co₈Ce₂O_x spectra at 60 min. Reproduced with permission^[118]. Copyright 2021, Elsevier.