TY - JOUR
T1 - Dissociative and non-dissociative adsorption of selenophene on Au (1 1 1) depending on the preparation method
AU - Kondoh, H.
AU - Nakai, I.
AU - Nambu, A.
AU - Ohta, T.
AU - Nakamura, T.
AU - Kimura, R.
AU - Matsumoto, M.
N1 - Funding Information:
We acknowledge F. Matsui and Y. Ehara for their help in the NEXAFS experiments. The authors are grateful for the financial support of the Ministry of Education, Sports and Culture (Grant no.11640576). This research was performed under the approval of Photon Factory Program Advisory Committee (PF-PAC 99G078). H.K. acknowledges financial support of Toyota Physical and Chemical Research Institute.
PY - 2001/12/28
Y1 - 2001/12/28
N2 - Selenophene (C4H4Se) monolayers on Au(111) were prepared by two different methods: ultrahigh vacuum (UHV) and atmospheric vapor adsorption method. Near-edge X-ray absorption fine structure (NEXAFS) and X-ray photoelectron spectroscopy (XPS) results clearly indicate that the two monolayers are in different chemical forms; selenophene is molecularly adsorbed under UHV condition, while it is dissociatively chemisorbed via the C-Se bond cleavage under atmospheric condition. The dissociative chemisorption under atmospheric condition is interpreted in terms of the trapping mediated adsorption in the presence of a high-pressure ambient gas phase.
AB - Selenophene (C4H4Se) monolayers on Au(111) were prepared by two different methods: ultrahigh vacuum (UHV) and atmospheric vapor adsorption method. Near-edge X-ray absorption fine structure (NEXAFS) and X-ray photoelectron spectroscopy (XPS) results clearly indicate that the two monolayers are in different chemical forms; selenophene is molecularly adsorbed under UHV condition, while it is dissociatively chemisorbed via the C-Se bond cleavage under atmospheric condition. The dissociative chemisorption under atmospheric condition is interpreted in terms of the trapping mediated adsorption in the presence of a high-pressure ambient gas phase.
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U2 - 10.1016/s0009-2614(01)01335-5
DO - 10.1016/s0009-2614(01)01335-5
M3 - Article
AN - SCOPUS:0042836478
SN - 0009-2614
VL - 350
SP - 466
EP - 472
JO - Chemical Physics Letters
JF - Chemical Physics Letters
IS - 5-6
ER -