Anomalous behaviour of pentane adsorbed at the graphite/liquid interface

Calorimetry and neutron di†raction have been used to identify and characterise the formation of a solid monolayer of pentane adsorbed on graphite and coexisting with liquid pentane. The observed behaviour is quite di†erent from other alkanes in that the monolayer does not melt above the melting temp...

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Detalles Bibliográficos
Autores: Castro Arroyo, Miguel Ángel, Clarke, Stuart M., Inaba, Akira, Arnold, Thomas, Thomas, Robert K.
Tipo de recurso: artículo
Fecha de publicación:1999
País:España
Institución:Universidad de Sevilla (US)
Repositorio:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/23349
Acceso en línea:http://hdl.handle.net/11441/23349
Access Level:acceso abierto
Descripción
Sumario:Calorimetry and neutron di†raction have been used to identify and characterise the formation of a solid monolayer of pentane adsorbed on graphite and coexisting with liquid pentane. The observed behaviour is quite di†erent from other alkanes in that the monolayer does not melt above the melting temperature of the pure pentane but at a temperature very similar to that of the bulk material. The lower melting point of the bulk pentane in the pentane/graphite system, when it is present in a relatively small amount, allows the melting point of the solid monolayer to be clearly resolved.