Structure and reactions of carbon and hydrogen on Ru(0001): A scanning tunneling microscopy study

Tomoko K. Shimizu; Aitor Mugarza; Jorge I. Cerdá; Miquel Salmeron

doi:10.1063/1.2991434

Structure and reactions of carbon and hydrogen on Ru(0001): A scanning tunneling microscopy study

Tomoko K. Shimizu, Aitor Mugarza, Jorge I. Cerdá, Miquel Salmeron

Department of Applied Physics and Physico-Informatics

Research output: Contribution to journal › Article › peer-review

11 Citations (Scopus)

Abstract

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 of 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.

Original language	English
Article number	244103
Journal	Journal of Chemical Physics
Volume	129
Issue number	24
DOIs	https://doi.org/10.1063/1.2991434
Publication status	Published - 2008

ASJC Scopus subject areas

Physics and Astronomy(all)
Physical and Theoretical Chemistry

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title = "Structure and reactions of carbon and hydrogen on Ru(0001): A scanning tunneling microscopy study",

abstract = "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 of 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.",

author = "Shimizu, {Tomoko K.} and Aitor Mugarza and Cerd{\'a}, {Jorge I.} and Miquel Salmeron",

note = "Funding Information: This work was supported by the Director, Office of Science, Office of Basic Energy Sciences, Materials Sciences and Engineering Division, of the (U.S.) Department of Energy under Contract No. DE-AC02-05CH11231, and by the Spanish Ministry of Science and Technology under Project Nos. MAT2007-66719-C03-02 and NAN2004-09125-C07-06. The work of A.M. was financed by the Marie Curie Outgoing International Fellowship, Project No. 514412.",

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T2 - A scanning tunneling microscopy study

AU - Shimizu, Tomoko K.

AU - Mugarza, Aitor

AU - Cerdá, Jorge I.

AU - Salmeron, Miquel

N1 - Funding Information: This work was supported by the Director, Office of Science, Office of Basic Energy Sciences, Materials Sciences and Engineering Division, of the (U.S.) Department of Energy under Contract No. DE-AC02-05CH11231, and by the Spanish Ministry of Science and Technology under Project Nos. MAT2007-66719-C03-02 and NAN2004-09125-C07-06. The work of A.M. was financed by the Marie Curie Outgoing International Fellowship, Project No. 514412.

PY - 2008

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