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  • Analysis of the uncertainties in gas uptake measurements using the Sieverts method

    Author(s)
    Webb, CJ
    Gray, E MacA
    Griffith University Author(s)
    Webb, Jim J.
    Gray, Evan M.
    Year published
    2014
    Metadata
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    Abstract
    An analysis of the uncertainties in the calculation of the amount of gas absorbed or desorbed by a sample has been made for the manometric or Sieverts technique, commonly used for the determination of hydrogen uptake on potential hydrogen storage materials. The analytical derivations provide a means to calculate the uncertainty in each step of a hydrogen absorption isotherm. In addition, a Sieverts system is modelled to allow a detailed investigation of the effect of volumes and other parameters as well as the relative impact of the different measurement uncertainties. Reliable uncertainty estimates are especially important ...
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    An analysis of the uncertainties in the calculation of the amount of gas absorbed or desorbed by a sample has been made for the manometric or Sieverts technique, commonly used for the determination of hydrogen uptake on potential hydrogen storage materials. The analytical derivations provide a means to calculate the uncertainty in each step of a hydrogen absorption isotherm. In addition, a Sieverts system is modelled to allow a detailed investigation of the effect of volumes and other parameters as well as the relative impact of the different measurement uncertainties. Reliable uncertainty estimates are especially important for authoritative measurements of gas uptake by carbons and other nanostructured materials used for hydrogen storage.
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    Journal Title
    International Journal of Hydrogen Energy
    Volume
    39
    Issue
    1
    DOI
    https://doi.org/10.1016/j.ijhydene.2013.09.155
    Subject
    Chemical sciences
    Other chemical sciences not elsewhere classified
    Engineering
    Other engineering not elsewhere classified
    Publication URI
    http://hdl.handle.net/10072/63872
    Collection
    • Journal articles

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