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    State of Hydrogen in Idealized Carbon Slitlike Nanopores at 77 K

    Access Status
    Fulltext not available
    Authors
    Kowalczyk, Piotr
    Holyst, R.
    Terzyk, A.
    Gauden, P.
    Date
    2006
    Type
    Journal Article
    
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    Citation
    Kowalczyk, Piotr and Holyst, Robert and Terzyk, Artur P. and Gauden, Piotr A. 2006. State of Hydrogen in Idealized Carbon Slitlike Nanopores at 77 K. Langmuir. 22 (5): pp. 1970-1972.
    Source Title
    Langmuir
    DOI
    10.1021/la053041n
    ISSN
    0743-7463
    School
    Department of Applied Chemistry
    URI
    http://hdl.handle.net/20.500.11937/25067
    Collection
    • Curtin Research Publications
    Abstract

    The purpose of this letter is to clarify recent findings and answer to the question: “What is the state of hydrogen in carbon slitlike pores at 77 K?” For this purpose, we determined the volumetric density of hydrogen in idealized carbon pores of molecular dimension at 77 K and pressure up to 1 MPa. We used quantum corrected grand canonical Monte Carlo simulation. We recognized the highest volumetric density of confined hydrogen (around 71% of hydrogen liquid at boiling point) for effective pore width 5.6 Å (H* = 3.04) in the considered pressure range. Our computational results are in agreement with the calculations performed by Wang and Johnson and Rzepka et al. In contrast, we did not observe the high volumetric density of hydrogen in slitlike carbon pores exceeding the density of hydrogen liquid at the boiling point as was reported by Jagiello and Thommes. Moreover, we obtained qualitative agreement between the simulation results and some experimental findings reported by Nijkamp.

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