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Graphene Sheets Stabilized on Genetically Engineered M13 Viral Templates as Conducting Frameworks for Hybrid Energy-Storage Materials

Authors

  • Dahyun Oh,

    1. Department of Materials Science and Engineering, The David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
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  • Xiangnan Dang,

    1. Department of Materials Science and Engineering, The David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
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  • Hyunjung Yi,

    1. Department of Materials Science and Engineering, The David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
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  • Mark A. Allen,

    1. Department of Materials Science and Engineering, The David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
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  • Kang Xu,

    1. Electrochemistry Branch, Power & Energy Division, Sensor and Electron Devices Directorate U. S. Army, Research Laboratory, Adelphi, Maryland, 20783, USA
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  • Yun Jung Lee,

    Corresponding author
    1. Department of Energy Engineering, Hanyang University, Seoul 133-791, Republic of Korea
    • Department of Energy Engineering, Hanyang University, Seoul 133-791, Republic of Korea
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  • Angela M. Belcher

    Corresponding author
    1. Department of Materials Science and Engineering, The David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
    2. Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
    • Department of Materials Science and Engineering, The David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.
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Abstract

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Utilization of the material-specific peptide–substrate interactions of M13 virus broadens colloidal stability window of graphene. The homogeneous distribution of graphene is maintained in weak acids and increased ionic strengths by complexing with virus. This graphene/virus conducting template is utilized in the synthesis of energy-storage materials to increase the conductivity of the composite electrode. Successful formation of the hybrid biological template is demonstrated by the mineralization of bismuth oxyfluoride as a cathode material for lithium-ion batteries, with increased loading and improved electronic conductivity.

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