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Poly(fluorenyl aryl piperidinium) membranes and ionomers for anion exchange membrane fuel cells

Author

Listed:
  • Nanjun Chen

    (Hanyang University)

  • Ho Hyun Wang

    (Hanyang University)

  • Sun Pyo Kim

    (Hanyang University)

  • Hae Min Kim

    (Hanyang University)

  • Won Hee Lee

    (Hanyang University)

  • Chuan Hu

    (Hanyang University)

  • Joon Yong Bae

    (Hanyang University)

  • Eun Seob Sim

    (Hanyang University)

  • Yong-Chae Chung

    (Hanyang University)

  • Jue-Hyuk Jang

    (Korea Institute of Science and Technology (KIST))

  • Sung Jong Yoo

    (Korea Institute of Science and Technology (KIST))

  • Yongbing Zhuang

    (Chinese Academy of Sciences)

  • Young Moo Lee

    (Hanyang University)

Abstract

Low-cost anion exchange membrane fuel cells have been investigated as a promising alternative to proton exchange membrane fuel cells for the last decade. The major barriers to the viability of anion exchange membrane fuel cells are their unsatisfactory key components—anion exchange ionomers and membranes. Here, we present a series of durable poly(fluorenyl aryl piperidinium) ionomers and membranes where the membranes possess high OH− conductivity of 208 mS cm−1 at 80 °C, low H2 permeability, excellent mechanical properties (84.5 MPa TS), and 2000 h ex-situ durability in 1 M NaOH at 80 °C, while the ionomers have high water vapor permeability and low phenyl adsorption. Based on our rational design of poly(fluorenyl aryl piperidinium) membranes and ionomers, we demonstrate alkaline fuel cell performances of 2.34 W cm−2 in H2-O2 and 1.25 W cm−2 in H2-air (CO2-free) at 80 °C. The present cells can be operated stably under a 0.2 A cm−2 current density for ~200 h.

Suggested Citation

  • Nanjun Chen & Ho Hyun Wang & Sun Pyo Kim & Hae Min Kim & Won Hee Lee & Chuan Hu & Joon Yong Bae & Eun Seob Sim & Yong-Chae Chung & Jue-Hyuk Jang & Sung Jong Yoo & Yongbing Zhuang & Young Moo Lee, 2021. "Poly(fluorenyl aryl piperidinium) membranes and ionomers for anion exchange membrane fuel cells," Nature Communications, Nature, vol. 12(1), pages 1-12, December.
    • Handle: RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-22612-3
    DOI: 10.1038/s41467-021-22612-3
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    Cited by:

    1. Zhu, Huichao & Xiao, Liusheng & Kuang, Min & Wang, Jiatang & Zhang, Houcheng, 2024. "Innovative use of air gap membrane distillation to harvest waste heat from alkaline fuel cell for efficient freshwater production: A comprehensive 4E study," Renewable Energy, Elsevier, vol. 225(C).

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