Por favor, use este identificador para citar o enlazar a este item:
http://hdl.handle.net/10261/112101
COMPARTIR / EXPORTAR:
SHARE CORE BASE | |
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE | |
Título: | Benzene diffusion on graphite described by a rough hard disk model |
Autor: | Calvo Almazán, Irene; Bahn, E.; Koza, M.M.; Zbiri, M.; Maccarini, M.; Telling, M.T.F.; Miret-Artés, Salvador CSIC ORCID; Fouquet, P. | Fecha de publicación: | 30-jul-2014 | Editor: | Elsevier | Citación: | Carbon 79: 183- 191 (2014) | Resumen: | © 2014 Elsevier Ltd. All rights reserved. New insight into the nature of diffusion and the origin of friction of a prototype system for weak physisorption-benzene molecules, C6H6, adsorbed on the basal plane (0001) of graphite-has been obtained with quasi-elastic neutron scattering (QENS). Spectra were measured at relative adsorbate coverages between 0.1 and 1.0 monolayers (ML) and at sample temperatures between 60 K and 140 K. Our experimental observations require a substantial modification of the model of interaction between benzene molecules and graphite surfaces: in contrast to recent studies we find only weak kinetic surface friction, but a substantial dissipative interaction during inter-molecular collisions. At coverages of up to 0.5 ML the molecular dynamics are successfully modeled by a rough hard disk model, which we derive from a three-dimensional rough hard sphere model. At the full monolayer, three body and higher order collisions are dominant and the rough hard disk model breaks down, as expected. | Descripción: | 9 pags.; 5 figs.; 1 tab.; 2 apps. | Versión del editor: | http://dx.doi.org/10.1016/j.carbon.2014.07.058 | URI: | http://hdl.handle.net/10261/112101 | DOI: | 10.1016/j.carbon.2014.07.058 | Identificadores: | doi: 10.1016/j.carbon.2014.07.058 issn: 0008-6223 |
Aparece en las colecciones: | (CFMAC-IFF) Artículos |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
---|---|---|---|---|
accesoRestringido.pdf | 15,38 kB | Adobe PDF | Visualizar/Abrir |
CORE Recommender
SCOPUSTM
Citations
12
checked on 24-abr-2024
WEB OF SCIENCETM
Citations
10
checked on 24-feb-2024
Page view(s)
372
checked on 23-abr-2024
Download(s)
119
checked on 23-abr-2024
Google ScholarTM
Check
Altmetric
Altmetric
NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.