Fig. 4
From: On the analyses of graphene oxide/polypyrrole/zinc oxide nanocomposites

MESP calculated for the studied structures whereas; a- GrO/PPy, b- GrO/PPy/ZnO, c- GrO/PPy/ZnO/NH2, and d- GrO/PPy/ZnO/COOH.
From: On the analyses of graphene oxide/polypyrrole/zinc oxide nanocomposites

MESP calculated for the studied structures whereas; a- GrO/PPy, b- GrO/PPy/ZnO, c- GrO/PPy/ZnO/NH2, and d- GrO/PPy/ZnO/COOH.