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High-power hybrid biofuel cells using layer-by-layer assembled glucose oxidase-coated metallic cotton fibers

Author

Listed:
  • Cheong Hoon Kwon

    (Korea University)

  • Yongmin Ko

    (Korea University
    Georgia Institute of Technology)

  • Dongyeeb Shin

    (Korea University)

  • Minseong Kwon

    (Korea University)

  • Jinho Park

    (Georgia Institute of Technology)

  • Wan Ki Bae

    (Sungkyunkwan University)

  • Seung Woo Lee

    (Georgia Institute of Technology)

  • Jinhan Cho

    (Korea University)

Abstract

Electrical communication between an enzyme and an electrode is one of the most important factors in determining the performance of biofuel cells. Here, we introduce a glucose oxidase-coated metallic cotton fiber-based hybrid biofuel cell with efficient electrical communication between the anodic enzyme and the conductive support. Gold nanoparticles are layer-by-layer assembled with small organic linkers onto cotton fibers to form metallic cotton fibers with extremely high conductivity (>2.1×104 S cm−1), and are used as an enzyme-free cathode as well as a conductive support for the enzymatic anode. For preparation of the anode, the glucose oxidase is sequentially layer-by-layer-assembled with the same linkers onto the metallic cotton fibers. The resulting biofuel cells exhibit a remarkable power density of 3.7 mW cm−2, significantly outperforming conventional biofuel cells. Our strategy to promote charge transfer through electrodes can provide an important tool to improve the performance of biofuel cells.

Suggested Citation

  • Cheong Hoon Kwon & Yongmin Ko & Dongyeeb Shin & Minseong Kwon & Jinho Park & Wan Ki Bae & Seung Woo Lee & Jinhan Cho, 2018. "High-power hybrid biofuel cells using layer-by-layer assembled glucose oxidase-coated metallic cotton fibers," Nature Communications, Nature, vol. 9(1), pages 1-11, December.
    • Handle: RePEc:nat:natcom:v:9:y:2018:i:1:d:10.1038_s41467-018-06994-5
    DOI: 10.1038/s41467-018-06994-5
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    Cited by:

    1. Linda Barelli & Gianni Bidini & Dario Pelosi & Elena Sisani, 2021. "Enzymatic Biofuel Cells: A Review on Flow Designs," Energies, MDPI, vol. 14(4), pages 1-26, February.

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