fig3

Figure 3. Properties and performance of Ru/H_xMoO_3-y and Ru/MoO₃. (A) Schematic of preparing for Ru/H_xMoO_3-y via H₂-Spillover using Ru/MoO₃. (B) UV-vis-NIR spectra absorption analysis of Samples. (C) Schematic of the band structure made based on analysis such as Tauc plots, VB XPS spectra, Mott-Schottky plots, etc. (D) Photocurrent density of samples under Vis-NIR light irradiation. (E) Methane production rate and selectivity depending on different light intensities. (F) Methane production rate with and without light at various temperatures. (G) Methane production rate with and without light for different Ru loading samples. (H) XPS spectra O 1s of Fresh sample, sample after CO₂ adsorption, sample reduced again by hydrogen after CO₂ adsorption. Reproduced with permission from Ref.^[51].