Fig. 12

Morphology and physical composition of manganese metal from SEM and XRD analysis. (a) SEM images of manganese metal by CC for 20Â min. (b) SEM images of manganese metal by DC for 20Â min. (c) SEM images of manganese metal by CC for 30Â min. (d) SEM images of manganese metal by DC for 30Â min. (e) SEM images of manganese metal by CC for 60Â min. (f) SEM images of manganese metal by DC for 60Â min. (g) SEM images of manganese metal by CC for 90Â min. (h) SEM images of manganese metal by DC for 90Â min. (i) SEM images of manganese metal by CC for 120Â min. (j) SEM images of manganese metal by DC for 120Â min. (k) XRD patterns of manganese metal by CC for various times. (l) XRD patterns of manganese metal by DC for various times.