title: Pb intercalation underneath a graphene layer on Ru(0001) and its effect on graphene oxidation.
abstract: Intercalation of Pb at graphene/Ru(0001) interfaces has been dynamically observed using in situ low energy electron microscopy and photoemission electron microscopy. A comparative study of Pb intercalation on the submonolayer and complete monolayer graphene surfaces suggest that the Pb intercalation happens through the open edges of graphene islands, starting at around 150 °C. Spatially-resolved low energy electron diffraction measurements reveal that the Pb-intercalated graphene overlayers are quasi-free-standing. The intercalated graphene sheets show lower reactivity to oxidation in O(2).
authors.affiliation: State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, the Chinese Academy of Sciences, Dalian, PR China.
authors.forename: Li
authors.initials: L
authors.lastname: Jin
authors.forename: Qiang
authors.initials: Q
authors.lastname: Fu
authors.forename: Rentao
authors.initials: R
authors.lastname: Mu
authors.forename: Dali
authors.initials: D
authors.lastname: Tan
authors.forename: Xinhe
authors.initials: X
authors.lastname: Bao