title: Playing peekaboo with graphene oxide: a scanning electrochemical microscopy investigation.
abstract: Scanning electrochemical microscopy (SECM) can image graphene oxide (GO) flakes on insulating and conducting substrates. The contrast between GO and the substrate is controlled by the electrostatic interactions that are established between the charges of the molecular redox mediator and the charges present in the sheet/substrate. SECM also allows quantitative measurement - at the nano/microscale - of the charge transfer kinetics between single monolayer sheets and agent molecules.
authors.affiliation: Dipartimento di Chimica G. Ciamician, Via F. Selmi 2, 40126 Bologna, Italy. stefania.rapino3@unibo.it massimo.marcaccio@unibo.it francesco.paolucci@unibo.it francesco.zerbetto@unibo.it.
authors.forename: Stefania
authors.initials: S
authors.lastname: Rapino
authors.forename: Emanuele
authors.initials: E
authors.lastname: Treossi
authors.forename: Vincenzo
authors.initials: V
authors.lastname: Palermo
authors.forename: Massimo
authors.initials: M
authors.lastname: Marcaccio
authors.forename: Francesco
authors.initials: F
authors.lastname: Paolucci
authors.forename: Francesco
authors.initials: F
authors.lastname: Zerbetto
mesh_terms: D006046:Gold / Q000737:chemistry; D006108:Graphite / Q000737:chemistry*; D007700:Kinetics; D064347:Microscopy, Electrochemical, Scanning; D010087:Oxides / Q000737:chemistry; D017655:Silicon Compounds / Q000737:chemistry
chemical_list: D010087:Oxides; D017655:Silicon Compounds; D006046:Gold; D006108:Graphite