title: Alkali-induced hydrogenation of epitaxial graphene by water splitting at 100 K.
abstract: The coadsorption of potassium with water at 100 K on graphene/Pt(111) has been studied by high-resolution electron energy loss spectroscopy. The adsorption of alkali metals induces water splitting and the formation of C-H and C-OH groups. Such finding is of great interest for tailoring graphene-Pt electro-catalysts. Furthermore, the alkali-promoted dissociation of water molecules offers the possibility to attain a partial hydrogenation of the graphene sheet even at low temperature.
authors: Dipartimento di Fisica, Università degli Studi della Calabria, 87036 Rende (Cs), Italy.
authors: A
authors: A
authors: Politano
authors: G
authors: G
authors: Chiarello
mesh_terms: D006108:Graphite / Q000737:chemistry*; D006865:Hydrogenation; D010984:Platinum / Q000737:chemistry; D011188:Potassium / Q000737:chemistry*; D046590:Spectroscopy, Electron Energy-Loss; D013696:Temperature; D014867:Water / Q000737:chemistry*
chemical_list: D014867:Water; D010984:Platinum; D006108:Graphite; D011188:Potassium