• Login
    View Item 
    •   Shocker Open Access Repository Home
    • Fairmount College of Liberal Arts and Sciences
    • Chemistry and Biochemistry
    • CHEM Faculty Scholarship
    • CHEM Faculty Publications
    • View Item
    •   Shocker Open Access Repository Home
    • Fairmount College of Liberal Arts and Sciences
    • Chemistry and Biochemistry
    • CHEM Faculty Scholarship
    • CHEM Faculty Publications
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Synthesis, structure, and transport properties of Ba$_8$Cu$_{16}$ -$_x$Au$_x$ P$_{30}$ clathrate solid solution

    Date
    2020-02-03
    Author
    Wang, Jian
    Voyles, Jackson
    Grzybowski, Scott
    Kovnir, Kirill
    Metadata
    Show full item record
    Citation
    Wang, Jian; Voyles, Jackson; Grzybowski, Scott; Kovnir, Kirill A. 2020. Synthesis, structure, and transport properties of Ba8Cu16 -x Au x P30 clathrate solid solution. Journal of Applied Physics 127:5:art. no. 055104
    Abstract
    A new clathrate solid solution Ba$_8$Cu$_{16}$ − $_x$Au$_x$P$_{30}$ (x = 4, 8, 12) was synthesized by a high-temperature solid-state annealing method. The crystal structures of Ba$_8$Cu$_{16}$ − $_x$Au$_x$P$_{30}$ were determined by single crystal x-ray diffraction. This clathrate solid solution crystallizes in the orthorhombic superstructure of clathrate-I type with 23 crystallographically independent framework sites, eight of them are occupied by Au/Cu and 15 are exclusively occupied by P atoms. The distribution of Au and Cu atoms over these eight framework sites is not random with a clear preference for Au to occupy the largest (Au/Cu)P$_4$ tetrahedra in the framework. The thermal stability and thermoelectric properties of the Ba$_8$Cu$_{16}$ − $_x$Au$_x$P$_{30}$ solid solution were evaluated. Low thermal conductivity was achieved for Ba$_8$Cu$_{16}$ − $_x$Au$_x$P$_{30}$ due to the combination of the host–guest crystal structure with rattling Ba atoms with the presence of heavy Au atoms and substitutional Cu/Au disorder in the clathrate framework.
    Description
    Click on the DOI link to access the article (may not be free).
    URI
    https://doi.org/10.1063/1.5134080
    http://hdl.handle.net/10057/17094
    Collections
    • CHEM Faculty Publications

    Browse

    All of Shocker Open Access RepositoryCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsBy TypeThis CollectionBy Issue DateAuthorsTitlesSubjectsBy Type

    My Account

    LoginRegister

    Statistics

    Most Popular ItemsStatistics by CountryMost Popular Authors

    DSpace software copyright © 2002-2023  DuraSpace
    DSpace Express is a service operated by 
    Atmire NV