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High-capacity methane storage in flexible alkane-linked porous aromatic network polymers

Author

Listed:
  • Vepa Rozyyev

    (Korea Advanced Institute of Science and Technology (KAIST))

  • Damien Thirion

    (Korea Advanced Institute of Science and Technology (KAIST))

  • Ruh Ullah

    (National Institute for Materials Science (NIMS))

  • Joosung Lee

    (Korea Advanced Institute of Science and Technology (KAIST))

  • Minji Jung

    (Gyeongnam National University of Science and Technology (GNTECH))

  • Hyunchul Oh

    (Gyeongnam National University of Science and Technology (GNTECH))

  • Mert Atilhan

    (Texas A&M University at Qatar
    Texas A&M University)

  • Cafer T. Yavuz

    (Korea Advanced Institute of Science and Technology (KAIST)
    KAIST
    KAIST)

Abstract

Adsorbed natural gas (ANG) technology is a viable alternative to conventional liquefied or compressed natural-gas storage. Many different porous materials have been considered for adsorptive, reversible methane storage, but fall short of the US Department of Energy targets (0.5 g g−1, 263 l l−1). Here, we prepare a flexible porous polymer, made from benzene and 1,2-dichloroethane in kilogram batches, that has a high methane working capacity of 0.625 g g−1 and 294 l l−1 when cycled between 5 and 100 bar pressure. We suggest that the flexibility provides rapid desorption and thermal management, while the hydrophobicity and the nature of the covalently bonded framework allow the material to tolerate harsh conditions. The polymer also shows an adsorbate memory effect, where a less adsorptive gas (N2) follows the isotherm profile of a high-capacity adsorbate (CO2), which is attributed to the thermal expansion caused by the adsorption enthalpy. The high methane capacity and memory effect make flexible porous polymers promising candidates for ANG technology.

Suggested Citation

  • Vepa Rozyyev & Damien Thirion & Ruh Ullah & Joosung Lee & Minji Jung & Hyunchul Oh & Mert Atilhan & Cafer T. Yavuz, 2019. "High-capacity methane storage in flexible alkane-linked porous aromatic network polymers," Nature Energy, Nature, vol. 4(7), pages 604-611, July.
    • Handle: RePEc:nat:natene:v:4:y:2019:i:7:d:10.1038_s41560-019-0427-x
    DOI: 10.1038/s41560-019-0427-x
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    Cited by:

    1. Mu, Liang & Tan, Qiqi & Li, Xianlong & Zhang, Qingyun & Cui, Qingyan, 2023. "A novel method to store methane by forming hydrate in the high water-oil ratio emulsions," Energy, Elsevier, vol. 264(C).

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