Fig. 4: Dynamic state change of Ni during UOR.
From: Boosting urea electrooxidation on oxyanion-engineered nickel sites via inhibited water oxidation
a In situ Ni K-edge XANES spectra for Ni-SOX under varying potential during UOR. Inset, magnified absorption edge region. In situ Raman spectra for Ni-SOX electrode in 1 M KOH b with, and c without, 0.33 M urea at applied potentials. d In situ Raman spectra for NiOX electrode in 1 M KOH with 0.33 M urea.
