fig6

Figure 6. Synergistic reaction pathways of simultaneously catalytic conversion of NO_x and toluene. (A) Synergistic mechanism of NO_x and toluene on Cu-VWTi catalyst^[4]; (B) Synergistic mechanism of NO_x and toluene on Pd₁V₁/CeO₂ catalyst^[58]. Figure 6A is reprinted with permission from Ref.^[4], Copyright © 2022 American Chemical Society. Figure 6B is reprinted with permission from Ref.^[58], Copyright © 2024 American Chemical Society. NO_x: Nitrogen oxides; VWTi: V₂O₅-WO₃-TiO₂.