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 | |
| Publication status | Published - 2008 Dec 1 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Physics and Astronomy(all)
- Physical and Theoretical Chemistry
Cite this
Structure and reactions of carbon and hydrogen on Ru(0001) : A scanning tunneling microscopy study. / Shimizu, Tomoko; Mugarza, Aitor; Cerdá, Jorge I.; Salmeron, Miquel.
In: Journal of Chemical Physics, Vol. 129, No. 24, 244103, 01.12.2008.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Structure and reactions of carbon and hydrogen on Ru(0001)
T2 - A scanning tunneling microscopy study
AU - Shimizu, Tomoko
AU - Mugarza, Aitor
AU - Cerdá, Jorge I.
AU - Salmeron, Miquel
PY - 2008/12/1
Y1 - 2008/12/1
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=58149267729&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=58149267729&partnerID=8YFLogxK
U2 - 10.1063/1.2991434
DO - 10.1063/1.2991434
M3 - Article
C2 - 19123491
AN - SCOPUS:58149267729
VL - 129
JO - Journal of Chemical Physics
JF - Journal of Chemical Physics
SN - 0021-9606
IS - 24
M1 - 244103
ER -