Perhaps this just accepted paper can be of some help to you.

Thank you very much. I'll take a look at it.

Yes, elements can intercalate into few layers (FLG) and multi layers (MLG) CVD graphene, however, it is hard to observe the staging phenomenon typically seen in HOPG due to the patchy nature of CVD graphene and non-uniform layers number.

I attache two papers;

(1) Intercalation of FeCl3 into CVD MLG. 

(2) My paper on the Intercalation of Bromine into CVD FLG grown on Nickle (Just accepted)

Conference Paper Intercalated multi-layer graphene grown by CVD for LSI interconnects

Article Bromination of Graphene: A New Route to Making High Performa...