Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Yoshiyuki Seimiya"'
Autor:
Hiromu Asada, Yoshiyuki Seimiya
Publikováno v:
Surface Science. 578:88-101
This paper presents a cluster variation theory of physical adsorption of atoms on a hexagonally packed crystalline surface. The surface provides three kinds of adsorption sites with different potential energies: two kinds of hollow sites and atop sit
Publikováno v:
Surface Science. 572:283-295
We have made volumetric measurements of adsorption isotherm of Ar, Kr, O 2 and N 2 on a powder sample of tin disulfide SnS 2 in the temperature range of 77–90 K. Ar, Kr and O 2 exhibited pressure isotherms unusually bending at the coverage of 0.3
Publikováno v:
Surface Science. 558:23-34
The order–disorder phase transitions in a honeycomb lattice gas have been studied in the Bragg–Williams (BW) and the quasi-chemical (QC) approximations as well as by means of Monte Carlo simulations. The model system, which is the same as studied
Publikováno v:
Journal of Molecular Catalysis A: Chemical. 141:63-71
Velocity distributions of desorbing product CO2 were studied in the CO oxidation on Pt(557) over a wide range of surface temperatures, in both the active and inhibited regions at the steady state. The translational energy of CO2 in the active region,
Autor:
Yoshiyuki Seimiya, Tatsuo Matsushima, Yuichi Ohno, Masao Kamada, Shin-ichiro Tanaka, Manami Sano
Publikováno v:
Surface Science. 421:386-396
Oxygen admolecules on stepped Pt(133)=(s)[3(111)×(111)] were characterized by means of thermal desorption spectroscopy and near-edge X-ray absorption fine structure. Three admolecule desorption peaks were found at 150 K (α3-O2), 175 K (α2-O2) and
Autor:
Kazushi Kimura, Yoshiyuki Seimiya, Plamen K. Stefanov, Toshiro Yamanaka, Yuichi Ohno, Tatsuo Matsushima
Publikováno v:
Surface Science. 416:305-319
Angular and velocity distributions of desorbing CO 2 molecules formed by the CO oxidation on a Pt(113) surface were studied. Measurements were performed by means of angle-resolved thermal desorption combined with time-of-flight techniques. At initial
Publikováno v:
Chemical Physics Letters. 294:419-424
Reaction sites working in CO oxidation at the steady state were studied over Pt(113)=(s)2(111)×(001) through analysis of the angular and velocity distributions of the desorbing product CO 2 . The site preference was found to switch from the (111) si
Publikováno v:
Surface Science. 415:L988-L992
Velocity distributions of desorbing product CO 2 in CO oxidation on Pt(133) were analyzed in both the active and inhibited regions at the steady state. The translation temperature is high in the active region where the reaction is in the first order
Autor:
Yoshiyuki Seimiya, Yuichi Ohno, Manami Sano, Shin-ichiro Tanaka, Tatsuo Matsushima, Masao Kamada
Publikováno v:
Applied Surface Science. :518-522
Oxygen admolecules on stepped Pt(133)=(s)3(111)×(111) were characterized by thermal desorption spectroscopy and near-edge X-ray absorption fine structure. Three admolecule desorption peaks were found at 150 K (α3-O2), 175 K (α2-O2) and 220 K (α1-
Publikováno v:
Applied Surface Science. :567-570
The angular and velocity distributions of the desorbing product CO 2 were measured in the CO oxidation on Pt(113) = (s)2(111) × (001) by means of angle-resolved thermal desorption combined with cross-correlation time of flight techniques. The CO 2 d