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RESEARCH PRODUCT
Study by static SIMS, XPS and UPS of the adsorption of cyanogen on (100) Ni surfaces
R. GouttebaronM. PerdereauSylvie Bourgeoissubject
inorganic chemicalsStatic secondary-ion mass spectrometryChemistryCyanogenAnalytical chemistrychemistry.chemical_elementSurfaces and InterfacesCondensed Matter PhysicsSurfaces Coatings and FilmsSecondary ion mass spectrometrychemistry.chemical_compoundNickelAdsorptionX-ray photoelectron spectroscopyChemisorptionMaterials ChemistryCarbondescription
Abstract The interaction of cyanogen with (100) Ni surfaces at room temperature was studied using secondary ion mass spectrometry in a static mode, and photoemission spectroscopies (XPS and UPS). It has been shown that cyanogen is adsorbed on this nickel surface in a dissociative mode: atomic carbon and nitrogen are present on the surface as well as CN fragments. These adsorbed species have been characterized by XPS and UPS. Increasing the temperature in the 400 K range increases the rate of the dissociation reaction of CN into atomic carbon and nitrogen. Moreover carbon is found to dissolved into the bulk for temperatures as low as 475 K. No evidence has been found of a polymerized form of cyanogen molecules on this nickel surface, when the temperature is increased unlike the results obtained for the (111) Ni surface.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2000-06-01 | Surface Science |