Examination of Perovskite Structure CaMnO_3-δ with MgO Addition as Oxygen Carrier for Chemical Looping with Oxygen Uncoupling Using Methane and Syngas

Figure 15

SEM image of 5.6% MgO 1300 sample. (a) Fresh sample. (b) Used sample (cooled down to room temperature by 5% O₂ in N₂).

(a)

(b)