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    Thermodynamics of benzene adsorption on oxidized carbon nanotubes – experimental and simulation studies

    Access Status
    Fulltext not available
    Authors
    Wisniewski, M.
    Furmaniak, S.
    Kowalczyk, Piotr
    Werengowska, K.
    Rychlicki, G.
    Date
    2012
    Type
    Journal Article
    
    Metadata
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    Citation
    Wisniewski, Marek and Furmaniak, Sylwester and Kowalczyk, Piotr and Werengowska, Karolina and Rychlicki, Gerhard. 2012. Thermodynamics of benzene adsorption on oxidized carbon nanotubes – experimental and simulation studies. Chemical Physics Letters 538: pp. 93-98.
    Source Title
    Chemical Physics Letters
    DOI
    10.1016/j.cplett.2012.04.038
    ISSN
    0009-2614
    URI
    http://hdl.handle.net/20.500.11937/18122
    Collection
    • Curtin Research Publications
    Abstract

    We studied the thermodynamics of benzene adsorption on a series of oxidized closed-ended multiwalled carbon nanotubes at 298 K. Combined experimental and simulation results showed the significant effect of the surface heterogeneity on the benzene adsorption enthalpy and entropy at low surface coverages. For oxidized carbon nanotubes and low benzene uptakes, the differential entropy of the adsorbed phase is close to the differential entropy of solid benzene. Therefore, benzene molecules interacting with surface heterogeneities are ordered in quasi-solid structures at 298 K. At higher surface coverages, the ordering and packing of benzene molecules is liquid-like.

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