fig8

Figure 8. Particle size and activity test for catalysts. (A) TEM images of catalysts with different particle sizes. (B) Temperature-dependence of CO production rate for samples with different loadings of Pd on support. (C) CO2 conversion rate at various temperatures in photothermal and thermal reactions. (D) Turnover frequency number for CO production on catalysts in photothermal reaction. Reproduced with permission from Ref.[63].