Translational energy and state resolved observations of D and D-2 thermally desorbing from D clusters chemisorbed on graphite
Апстракт
Direct D atom desorption, as well as associative desorption of D-2 molecules are observed in thermal desorption from D atoms chemisorbed on a C(0001) surface by combining laser induced T-jumps with resonance enhanced multiphoton ionization detection. Bleaching curves suggest that different classes of chemisorbed D atom clusters are present on the initial surface. The energy resolved atomic desorption flux, obtained via time of flight techniques, compares favorably (via detailed balance) with theoretical calculations of atomic sticking. Density functional theory calculations of chemical processes (atomic desorption, atomic diffusion/cluster annealing, and associative desorption) on an extensive set of four atom H(D) clusters chemisorbed on C(0001) provide a good interpretation of the experiments. State and energy resolved D-2 desorption fluxes are compared with previous state averaged results. In combination with density functional theory calculations these measurements reveal a substan...tial energy loss ( GT 1 eV) to the surface in the associative desorption.
Кључне речи:
annealing / atomic clusters / chemisorbed layers / density functional theory / deuterium / graphite / multiphoton processes / surface diffusion / thermally stimulated desorption / time of flight spectraИзвор:
Journal of Chemical Physics, 2009, 131, 24Финансирање / пројекти:
- Toyota
DOI: 10.1063/1.3274655
ISSN: 0021-9606
PubMed: 20059099
WoS: 000273217000057
Scopus: 2-s2.0-73649085156
Колекције
Институција/група
VinčaTY - JOUR AU - Baouche, S. AU - Hornekaer, L. AU - Baurichter, A. AU - Luntz, A. C. AU - Petrunin, V. V. AU - Šljivančanin, Željko PY - 2009 UR - https://vinar.vin.bg.ac.rs/handle/123456789/3865 AB - Direct D atom desorption, as well as associative desorption of D-2 molecules are observed in thermal desorption from D atoms chemisorbed on a C(0001) surface by combining laser induced T-jumps with resonance enhanced multiphoton ionization detection. Bleaching curves suggest that different classes of chemisorbed D atom clusters are present on the initial surface. The energy resolved atomic desorption flux, obtained via time of flight techniques, compares favorably (via detailed balance) with theoretical calculations of atomic sticking. Density functional theory calculations of chemical processes (atomic desorption, atomic diffusion/cluster annealing, and associative desorption) on an extensive set of four atom H(D) clusters chemisorbed on C(0001) provide a good interpretation of the experiments. State and energy resolved D-2 desorption fluxes are compared with previous state averaged results. In combination with density functional theory calculations these measurements reveal a substantial energy loss ( GT 1 eV) to the surface in the associative desorption. T2 - Journal of Chemical Physics T1 - Translational energy and state resolved observations of D and D-2 thermally desorbing from D clusters chemisorbed on graphite VL - 131 IS - 24 DO - 10.1063/1.3274655 ER -
@article{ author = "Baouche, S. and Hornekaer, L. and Baurichter, A. and Luntz, A. C. and Petrunin, V. V. and Šljivančanin, Željko", year = "2009", abstract = "Direct D atom desorption, as well as associative desorption of D-2 molecules are observed in thermal desorption from D atoms chemisorbed on a C(0001) surface by combining laser induced T-jumps with resonance enhanced multiphoton ionization detection. Bleaching curves suggest that different classes of chemisorbed D atom clusters are present on the initial surface. The energy resolved atomic desorption flux, obtained via time of flight techniques, compares favorably (via detailed balance) with theoretical calculations of atomic sticking. Density functional theory calculations of chemical processes (atomic desorption, atomic diffusion/cluster annealing, and associative desorption) on an extensive set of four atom H(D) clusters chemisorbed on C(0001) provide a good interpretation of the experiments. State and energy resolved D-2 desorption fluxes are compared with previous state averaged results. In combination with density functional theory calculations these measurements reveal a substantial energy loss ( GT 1 eV) to the surface in the associative desorption.", journal = "Journal of Chemical Physics", title = "Translational energy and state resolved observations of D and D-2 thermally desorbing from D clusters chemisorbed on graphite", volume = "131", number = "24", doi = "10.1063/1.3274655" }
Baouche, S., Hornekaer, L., Baurichter, A., Luntz, A. C., Petrunin, V. V.,& Šljivančanin, Ž.. (2009). Translational energy and state resolved observations of D and D-2 thermally desorbing from D clusters chemisorbed on graphite. in Journal of Chemical Physics, 131(24). https://doi.org/10.1063/1.3274655
Baouche S, Hornekaer L, Baurichter A, Luntz AC, Petrunin VV, Šljivančanin Ž. Translational energy and state resolved observations of D and D-2 thermally desorbing from D clusters chemisorbed on graphite. in Journal of Chemical Physics. 2009;131(24). doi:10.1063/1.3274655 .
Baouche, S., Hornekaer, L., Baurichter, A., Luntz, A. C., Petrunin, V. V., Šljivančanin, Željko, "Translational energy and state resolved observations of D and D-2 thermally desorbing from D clusters chemisorbed on graphite" in Journal of Chemical Physics, 131, no. 24 (2009), https://doi.org/10.1063/1.3274655 . .