Fig. 4
From: Influence of ageing of graphene oxide on the properties and morphology of cement mortar

XPS of fresh CGT-GO (a) Narrow C1s spectrum (b) Narrow O1s spectrum.
From: Influence of ageing of graphene oxide on the properties and morphology of cement mortar

XPS of fresh CGT-GO (a) Narrow C1s spectrum (b) Narrow O1s spectrum.