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Improving Hydrogen Adsorption Enthalpy Through Coordinatively Unsaturated Cobalt in Porous Polymers

Authors

  • Shengwen Yuan,

    1. Chemical Sciences & Engineering Division, Argonne National Laboratory, 9700 S. Cass Ave. Argonne, IL 60439 USA
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  • Desiree White,

    1. Chemical Sciences & Engineering Division, Argonne National Laboratory, 9700 S. Cass Ave. Argonne, IL 60439 USA
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  • Alex Mason,

    1. Chemical Sciences & Engineering Division, Argonne National Laboratory, 9700 S. Cass Ave. Argonne, IL 60439 USA
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  • Briana Reprogle,

    1. Chemical Sciences & Engineering Division, Argonne National Laboratory, 9700 S. Cass Ave. Argonne, IL 60439 USA
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  • Magali S. Ferrandon,

    1. Chemical Sciences & Engineering Division, Argonne National Laboratory, 9700 S. Cass Ave. Argonne, IL 60439 USA
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  • Luping Yu,

    Corresponding author
    1. Department of Chemistry and The James Franck Institute, The University of Chicago, 929 E. 57th Street, Chicago, IL 60637 USA
    • Department of Chemistry and The James Franck Institute, The University of Chicago, 929 E. 57th Street, Chicago, IL 60637 USA
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  • Di-Jia Liu

    Corresponding author
    1. Chemical Sciences & Engineering Division, Argonne National Laboratory, 9700 S. Cass Ave. Argonne, IL 60439 USA
    • Chemical Sciences & Engineering Division, Argonne National Laboratory, 9700 S. Cass Ave. Argonne, IL 60439 USA.
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Abstract

The design and synthesis of a new porous organic polymer (POP) incorporated with cobalt carbonyl complexes through built-in bipyridinic coordination sites for hydrogen storage are described. A thermal activation process was developed to remove the ligated carbonyl and carbon dioxide in order to expose the cobalt atomically inside of porous structure. Various spectroscopic and physical characterization techniques were used to study the coordinated Co sites and the POP's surface property. Upon thermal activation, this new cobalt-containing POP showed improved hydrogen uptake capacity and isosteric heat of adsorption.

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