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Multiplex lithography for multilevel multiscale architectures and its application to polymer electrolyte membrane fuel cell

Author

Listed:
  • Hyesung Cho

    (Global Frontier Center for Multiscale Energy Systems, Seoul National University
    Seoul National University)

  • Sang Moon Kim

    (Global Frontier Center for Multiscale Energy Systems, Seoul National University
    Seoul National University
    Seoul National University)

  • Yun Sik Kang

    (Center for Nanoparticle Research, Institute for Basic Science (IBS)
    School of Chemical and Biological Engineering, Seoul National University)

  • Junsoo Kim

    (Global Frontier Center for Multiscale Energy Systems, Seoul National University
    Seoul National University
    Seoul National University
    Energy Harvesting Devices Research Section, Electronics and Telecommunications Research Institute)

  • Segeun Jang

    (Global Frontier Center for Multiscale Energy Systems, Seoul National University
    Seoul National University
    Seoul National University)

  • Minhyoung Kim

    (Center for Nanoparticle Research, Institute for Basic Science (IBS)
    School of Chemical and Biological Engineering, Seoul National University)

  • Hyunchul Park

    (Seoul National University
    Seoul National University
    Center for Materials Architecturing, Korea Institute of Science and Technology)

  • Jung Won Bang

    (Global Frontier Center for Multiscale Energy Systems, Seoul National University
    Seoul National University
    Seoul National University)

  • Soonmin Seo

    (College of BioNano Technology, Gachon University)

  • Kahp-Yang Suh

    (Seoul National University
    Seoul National University)

  • Yung-Eun Sung

    (Center for Nanoparticle Research, Institute for Basic Science (IBS)
    School of Chemical and Biological Engineering, Seoul National University)

  • Mansoo Choi

    (Global Frontier Center for Multiscale Energy Systems, Seoul National University
    Seoul National University
    Seoul National University)

Abstract

The production of multiscale architectures is of significant interest in materials science, and the integration of those structures could provide a breakthrough for various applications. Here we report a simple yet versatile strategy that allows for the LEGO-like integrations of microscale membranes by quantitatively controlling the oxygen inhibition effects of ultraviolet-curable materials, leading to multilevel multiscale architectures. The spatial control of oxygen concentration induces different curing contrasts in a resin allowing the selective imprinting and bonding at different sides of a membrane, which enables LEGO-like integration together with the multiscale pattern formation. Utilizing the method, the multilevel multiscale Nafion membranes are prepared and applied to polymer electrolyte membrane fuel cell. Our multiscale membrane fuel cell demonstrates significant enhancement of performance while ensuring mechanical robustness. The performance enhancement is caused by the combined effect of the decrease of membrane resistance and the increase of the electrochemical active surface area.

Suggested Citation

  • Hyesung Cho & Sang Moon Kim & Yun Sik Kang & Junsoo Kim & Segeun Jang & Minhyoung Kim & Hyunchul Park & Jung Won Bang & Soonmin Seo & Kahp-Yang Suh & Yung-Eun Sung & Mansoo Choi, 2015. "Multiplex lithography for multilevel multiscale architectures and its application to polymer electrolyte membrane fuel cell," Nature Communications, Nature, vol. 6(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:6:y:2015:i:1:d:10.1038_ncomms9484
    DOI: 10.1038/ncomms9484
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    Cited by:

    1. Ke, Yuzhi & Yuan, Wei & Zhou, Feikun & Guo, Wenwen & Li, Jinguang & Zhuang, Ziyi & Su, Xiaoqing & Lu, Biaowu & Zhao, Yonghao & Tang, Yong & Chen, Yu & Song, Jianli, 2021. "A critical review on surface-pattern engineering of nafion membrane for fuel cell applications," Renewable and Sustainable Energy Reviews, Elsevier, vol. 145(C).

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