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A phenazine-based high-capacity and high-stability electrochemical CO2 capture cell with coupled electricity storage

Author

Listed:
  • Shuai Pang

    (Westlake University
    Institute of Natural Sciences, Westlake Institute for Advanced Study)

  • Shijian Jin

    (Harvard University)

  • Fengcun Yang

    (University of Chinese Academy of Sciences)

  • Maia Alberts

    (Harvard College)

  • Lu Li

    (Westlake University
    Institute of Natural Sciences, Westlake Institute for Advanced Study)

  • Dawei Xi

    (Harvard University)

  • Roy G. Gordon

    (Harvard University
    Harvard University)

  • Pan Wang

    (Westlake University
    Institute of Natural Sciences, Westlake Institute for Advanced Study)

  • Michael J. Aziz

    (Harvard University)

  • Yunlong Ji

    (University of Chinese Academy of Sciences)

Abstract

Carbon dioxide capture technologies will be important for counteracting difficult-to-abate greenhouse gas emissions if humanity is to limit global warming to acceptable levels. Electrochemically mediated CO2 capture has emerged as a promising alternative to conventional amine scrubbing, offering a potentially cost effective, environmentally friendly and energy efficient approach. Here we report an electrochemical cell for CO2 capture based on pH swing cycles driven through proton-coupled electron transfer of a developed phenazine derivative, 2,2′-(phenazine-1,8-diyl)bis(ethane-1-sulfonate) (1,8-ESP), with high aqueous solubility (>1.35 M) over pH range 0.00–14.90. The system operates with a high capture capacity of 0.86–1.41 mol l−1, a low energetic cost of 36–55 kJ mol−1 and an extremely low capacity fade rate of

Suggested Citation

  • Shuai Pang & Shijian Jin & Fengcun Yang & Maia Alberts & Lu Li & Dawei Xi & Roy G. Gordon & Pan Wang & Michael J. Aziz & Yunlong Ji, 2023. "A phenazine-based high-capacity and high-stability electrochemical CO2 capture cell with coupled electricity storage," Nature Energy, Nature, vol. 8(10), pages 1126-1136, October.
    • Handle: RePEc:nat:natene:v:8:y:2023:i:10:d:10.1038_s41560-023-01347-z
    DOI: 10.1038/s41560-023-01347-z
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