Enhanced Hydrogen Storage in Graphene Oxide-MWCNTs Composite at Room Temperature

Authors

  • Seyed Hamed Aboutalebi,

    1. Institute for Superconducting & Electronic Materials (ISEM), Innovation Campus, University of Wollongong, NSW 2519, Australia
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  • Sima Aminorroaya-Yamini,

    Corresponding author
    1. Institute for Superconducting & Electronic Materials (ISEM), Innovation Campus, University of Wollongong, NSW 2519, Australia
    • Institute for Superconducting & Electronic Materials (ISEM), Innovation Campus, University of Wollongong, NSW 2519, Australia.
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  • Ivan Nevirkovets,

    1. Institute for Superconducting & Electronic Materials (ISEM), Innovation Campus, University of Wollongong, NSW 2519, Australia
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  • Konstantin Konstantinov,

    1. Institute for Superconducting & Electronic Materials (ISEM), Innovation Campus, University of Wollongong, NSW 2519, Australia
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  • Hua Kun Liu

    1. Institute for Superconducting & Electronic Materials (ISEM), Innovation Campus, University of Wollongong, NSW 2519, Australia
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Abstract

High hydrogen capacity (up to 2.6 wt%) is reported for highly aligned structures of Graphene oxide-Multiwalled carbon nanotubes composite at room temperature. It is demonstrated that the scalable liquid crystal route can be employed as a new method to prepare unique 3-D framework of graphene oxide layers with proper interlayer spacing as building blocks for cost-effective high-capacity hydrogen storage media. The strong synergistic effect of the intercalation of MWCNTs as 1-D spacers within graphene oxide frameworks resulted in unrivalled high hydrogen capacity at ambient temperature. The mechanisms involved in the intercalation procedure are fully discussed. The main concept behind intercalating one-dimensional spacers in between giant GO sheets represents a versatile and highly scalable route to fabricate devices with superior hydrogen uptake.

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