Structure and Reactions of Carbon and Hydrogen on Ru(0001) [electronic resource] : A Scanning Tunneling Microscopy Study

Published:: Berkeley, Calif. : Lawrence Berkeley National Laboratory, 2008.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Additional Creators:: Lawrence Berkeley National Laboratory and United States. Department of Energy. Office of Scientific and Technical Information

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Summary:

The interaction between carbon and hydrogen atoms on a Ru(0001) surface was studied using scanning tunneling microscopy (STM), Density Functional Theory (DFT) and STM image calculations. Formation of CH species by reaction between adsorbed H and C was observed to occur readily at 100 K. When the coverage of H increased new complexes of the form CH+nH (n = 1, 2 and 3) were observed. These complexes, never observed before, might be precursors for further hydrogenation reactions. DFT analysis reveals that a considerable energy barrier exists for the CH+H → CH₂ reaction.

Report Numbers:

E 1.99:lbnl-1386e
lbnl-1386e

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Published through SciTech Connect.
09/09/2008.
"lbnl-1386e"
Journal of Chemical Physics ISSN 0021-9606; JCPSA6 FT
Salmeron, Miquel; Shimizu, Tomoko K.; Mugarza, Aitor; Cerda, Jorge.
Materials Sciences Division

Funding Information:

DE-AC02-05CH11231

View MARC record | catkey: 14444615