fig8

From: Unveiling proton-regulated Mo=O/Mo-O^- centers in reconstructed Ni₂Mo-NiOOH/MoO_x interfaces toward accelerated proton-coupled electron transfer for urea oxidation reaction

Unveiling proton-regulated Mo=O/Mo-O<sup>-</sup> centers in reconstructed Ni<sub>2</sub>Mo-NiOOH/MoO<sub>x</sub> interfaces toward accelerated proton-coupled electron transfer for urea oxidation reaction

Figure 8. Urea degradation performance characterization of different catalytic electrodes. (A, D, G) UV-Vis absorption spectra at different reaction times; (B, E, H) Photographs of solution color evolution during the reaction; (C, F, I) Variation curves of relative urea concentration C/C₀ as a function of reaction time; where (A)-(C), (D)-(F), and (G)-(I) correspond to the test results of Ni₂Mo-NiOOH/MoO_x, Ni₂Mo/NF, and Ni-NiOOH catalysts, respectively. NF: Nickel foam.