Change in adsorption bond length with coverage for KAl(111) |
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| Affiliation: | 1. Institute of Physics and Astronomy, University of Aarhus, DK-8000 Aarhus C, Denmark;2. Department of Chemistry, University of Copenhagen, DK-2100 Kobenhavn Ø, Denmark;1. Instituto Universitario de Tecnología Química CSIC-UPV, Universitat Politècnica de València, Av. De los Naranjos, s/n, 46022 Valencia, Spain;2. Departament de Química Inorgànica i Orgànica, Universitat Jaume I, Av. Vicente Sos Baynat, s/n, 12071 Castelló, Spain;3. King Fahd University of Petroleum and Minerals, P. O. Box 989, Dhahran 31261, Saudi Arabia;1. Centre for Advanced Sustainable Energy, David Keir Building, Stranmillis Road, Belfast, BT9 5AG, UK;2. Sustainable Energy Research Centre, School of Chemistry and Chemical Engineering, Queen''s University Belfast, BT9 5AG, UK;3. Chemistry Department, Faculty of Science, South Valley University, Qena, 83523, Egypt;1. Institute of Physics, National Academy of Sciences of Ukraine, 46, Nauky Ave., 03028, Kyiv, Ukraine;2. Institute for Sorption and Problems of Endoecology, National Academy of Sciences of Ukraine, 13, General Naumov Str., 03164, Kyiv, Ukraine;3. Johan Gadolin Process Chemistry Centre, Åbo Akademi University, 8, Biskopsgatan, 20500, Turku/Åbo, Finland;4. Lashkaryov Institute of Semiconductor Physics, National Academy of Sciences of Ukraine, 45, Nauky Ave., Kyiv, 03028, Ukraine;5. L.V. Pisarzhevskii Institute of Physical Chemistry, National Academy of Sciences of Ukraine, 31, Nauky Ave., 03028, Kyiv, Ukraine;1. Departamento de Química, Universidad Autónoma de Aguascalientes, Avenida Universidad No. 940, Ciudad Universitaria, 20131 Aguascalientes, Ags., Mexico;2. Departamento de Ingeniería Bioquímica, Universidad Autónoma de Aguascalientes, Avenida Universidad No. 940, Ciudad Universitaria, 20131 Aguascalientes, Ags., Mexico;3. Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Circuito Exterior s/n, México Cd. de México, 04510, Mexico |
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| Abstract: | ![]()
The local bond geometry of K adsorbed on Al(111) at low temperature has been studied by photoelectron diffraction (PED) as a function of K coverage. It is found that K atoms occupy on-top sites in the coverage range 0.05-0.4 monolayer and that the KAl bond length increases by 0.17 Å over this coverage range. The reliability of this result is supported by PED studies of the (√3 × √3)R30° structures formed by adsorption of one-third monolayer Na and K at 300 K, and K at 150 K, which give results in quantitative agreement with previous structure determinations by SEXAFS and LEED. |
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