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Temperature Dependence of the Formation of Graphene and Subsurface Carbon on Ru(0001) and Its Effect on Surface Reactivity
Author(s) -
Cui Yi,
Fu Qiang,
Tan Dali,
Bao Xinhe
Publication year - 2010
Publication title -
chemphyschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.016
H-Index - 140
eISSN - 1439-7641
pISSN - 1439-4235
DOI - 10.1002/cphc.200901034
Subject(s) - graphene , annealing (glass) , carbon fibers , materials science , reactivity (psychology) , metal , chemical engineering , chemical physics , graphene nanoribbons , nanotechnology , chemistry , composite material , metallurgy , medicine , alternative medicine , pathology , composite number , engineering
Switching the surface structure: The formation of graphene and subsurface carbon on Ru(0001) is controlled by regulating the annealing temperature (see picture). A low annealing temperature (LT) drives bulk dissolved carbon onto the surface to form graphene. At high temperatures (HT), surface graphene carbon can diffuse into the subsurface or move into the bulk of the metal.