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Graphene-Based Flexible Micrometer-Sized Microbial Fuel Cell

Authors

  • Justine E. Mink,

    1. Integrated Nanotechnology Lab, Computer Electrical Mathematical Science and Engineering Division, King Abdullah University of Science and Technology, Thuwal 23955-6900 (Saudi Arabia)
    2. Water Desalination and Reuse Center (WDRC), King Abdullah University of Science and Technology, Thuwal 23955-6900 (Saudi Arabia)
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  • Ramy M. Qaisi,

    1. Integrated Nanotechnology Lab, Computer Electrical Mathematical Science and Engineering Division, King Abdullah University of Science and Technology, Thuwal 23955-6900 (Saudi Arabia)
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  • Prof. Muhammad M. Hussain

    Corresponding author
    1. Integrated Nanotechnology Lab, Computer Electrical Mathematical Science and Engineering Division, King Abdullah University of Science and Technology, Thuwal 23955-6900 (Saudi Arabia)
    • Integrated Nanotechnology Lab, Computer Electrical Mathematical Science and Engineering Division, King Abdullah University of Science and Technology, Thuwal 23955-6900 (Saudi Arabia)

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Abstract

Microbial fuel cells harvest electrical energy produced by bacteria during the natural decomposition of organic matter. We report a micrometer-sized microbial fuel cell that is able to generate nanowatt-scale power from microliters of liquids. The sustainable design is comprised of a graphene anode, an air cathode, and a polymer-based substrate platform for flexibility. The graphene layer was grown on a nickel thin film by using chemical vapor deposition at atmospheric pressure. Our demonstration provides a low-cost option to generate useful power for lab-on-chip applications and could be promising to rapidly screen and scale up microbial fuel cells for water purification without consuming excessive power (unlike other water treatment technologies).

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