Figure 8

(a) Isothermal NO_x storage over 2Pt/10 K/MgAlO_x, 2Pt/10 K/MgAlO_x–rGO catalysts and the influence of 5% H₂O on 2Pt/10 K/MgAlO_x–rGO catalysts tested at 350 °C. (b)The NO_x storage capacities of MgAlO_x, MgAlO_x–rGO, 2Pt/10 K/MgAlO_x, and 2Pt/10 K/MgAlO_x–rGO catalysts tested at 350 °C.