Figure 6

ETEM images of carbon and 10%Fe/CeO2 during the reaction at 800 °C in 1 Pa O2; (A) 0 min; (B) 2 min; (C) 4 min; (D) 6 min. The 10%Fe/CeO2 catalyst clusters are circled in red lines. (E) Correlation of contact length and reaction rate ‘r’.