fig6
Figure 6. (A) Schematic diagram of synthesis and catalysis of Vo-NiO. (B) Adsorption infrared spectra of HMF on Vo-NiO and NiO surface. (C) The mechanism of HMFOR. In situ Raman spectra of prepared (D) Vo-NiO and (E) NiO in 1.0 M KOH with 100 mM HMF at different applied potentials. (F) Polarization curves of Vo-NiO, NiO, and Ni. Reproduced with permission[90]. Copyright 2022, Elsevier.
