Lithium-Catalyzed Dehydrogenation of Ammonia Borane within Mesoporous Carbon Framework for Chemical Hydrogen Storage

Authors

  • Li Li,

    1. ARC Centre of Excellence for Functional Nanomaterials School of Engineering and Australian Institute of Bioengineering and Nanotechnology The University of Queensland QLD 4072 Brisbane (Australia)
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  • Xiangdong Yao,

    Corresponding author
    1. ARC Centre of Excellence for Functional Nanomaterials School of Engineering and Australian Institute of Bioengineering and Nanotechnology The University of Queensland QLD 4072 Brisbane (Australia)
    • ARC Centre of Excellence for Functional Nanomaterials School of Engineering and Australian Institute of Bioengineering and Nanotechnology The University of Queensland QLD 4072 Brisbane (Australia).
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  • Chenghua Sun,

    1. ARC Centre of Excellence for Functional Nanomaterials School of Engineering and Australian Institute of Bioengineering and Nanotechnology The University of Queensland QLD 4072 Brisbane (Australia)
    2. Centre for Computational Molecular Science The University of Queensland QLD 4072 Brisbane (Australia)
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  • Aijun Du,

    1. ARC Centre of Excellence for Functional Nanomaterials School of Engineering and Australian Institute of Bioengineering and Nanotechnology The University of Queensland QLD 4072 Brisbane (Australia)
    2. Centre for Computational Molecular Science The University of Queensland QLD 4072 Brisbane (Australia)
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  • Lina Cheng,

    1. ARC Centre of Excellence for Functional Nanomaterials School of Engineering and Australian Institute of Bioengineering and Nanotechnology The University of Queensland QLD 4072 Brisbane (Australia)
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  • Zhonghua Zhu,

    1. ARC Centre of Excellence for Functional Nanomaterials School of Engineering and Australian Institute of Bioengineering and Nanotechnology The University of Queensland QLD 4072 Brisbane (Australia)
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  • Chengzhong Yu,

    1. Department of Chemistry, Fudan University Shanghai 200433 (P.R. China)
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  • Jin Zou,

    1. Centre for Microscopy and Microanalysis and School of Engineering The University of Queensland QLD 4072 Brisbane (Australia)
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  • Sean C. Smith,

    1. ARC Centre of Excellence for Functional Nanomaterials School of Engineering and Australian Institute of Bioengineering and Nanotechnology The University of Queensland QLD 4072 Brisbane (Australia)
    2. Centre for Computational Molecular Science The University of Queensland QLD 4072 Brisbane (Australia)
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  • Ping Wang,

    1. Shenyang National Laboratory for Materials Science Institute of Metal Research Chinese Academy of Sciences Shenyang 110016 (P.R. China)
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  • Hui-Ming Cheng,

    1. Shenyang National Laboratory for Materials Science Institute of Metal Research Chinese Academy of Sciences Shenyang 110016 (P.R. China)
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  • Ray L. Frost,

    1. School of Physical & Chemical Sciences Queensland University of Technology QLD 4001 Brisbane (Australia)
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  • Gao Qing (Max) Lu

    Corresponding author
    1. ARC Centre of Excellence for Functional Nanomaterials School of Engineering and Australian Institute of Bioengineering and Nanotechnology The University of Queensland QLD 4072 Brisbane (Australia)
    • ARC Centre of Excellence for Functional Nanomaterials School of Engineering and Australian Institute of Bioengineering and Nanotechnology The University of Queensland QLD 4072 Brisbane (Australia).
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Abstract

Ammonia borane (AB) has attracted tremendous interest for on-board hydrogen storage due to its low molecular weight and high gravimetric hydrogen capacity below a moderate temperature. However, the slow kinetics, irreversibility, and formation of volatile materials (trace borazine and ammonia) limit its practical application. In this paper, a new catalytic strategy involved lithium (Li) catalysis and nanostructure confinement in mesoporous carbon (CMK-3) for the thermal decomposition of AB is developed. AB loaded on the 5% Li/CMK-3 framework releases ∼7 wt % of hydrogen at a very low temperature (around 60 °C) and entirely suppresses borazine and ammonia emissions that are harmful for proton exchange membrane fuel cells. The possible mechanism for enhanced hydrogen release via catalyzed thermal decomposition of AB is discussed.

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