辐射冷却和太阳能加热驱动的 CO2变温捕获

科研成果: 期刊稿件文章同行评审

1 引用 (Scopus)

摘要

Temperature-swing adsorption is an effective technique for CO2 capture, but the temperature swing procedure is energy-intensive, especially the heating and cooling processes. The low-energy-consumption temperature-swing system is realized by using polypyrrole-based nitrogen-doped porous carbon PPy-650 which combines passive radiative cooling and solar heating. During the adsorption process, the adsorbent layer is coated with a layer of hierarchically porous poly (vinylidene fluoride-co-hexafluoropropene) [P(VdF-HFP)HP], which can cool the adsorbents to a sub-ambient temperature under sunlight through radiative cooling. For desorption, PPy-650 with excellent photothermal conversion ability is exposed to light irradiation for heating. The heating and cooling process is driven entirely by solar energy without any energy input. The regeneration of PPy-650 was investigated by means of adsorption-desorption cycles carried out at 700 W/m2. The results demonstrate that PPy-650 has a good CO2 working capacity (35.69 cm3/g) in this temperature-swing adsorption system, the adsorption capacity of PPy-650 did not decrease.

投稿的翻译标题Temperature swing for CO2 capture driven by radiative cooling and solar heating
源语言繁体中文
页(从-至)469-478
页数10
期刊Huagong Xuebao/CIESC Journal
74
1
DOI
出版状态已出版 - 5 1月 2023

关键词

  • CO capture
  • N-doped porous carbon
  • adsorption
  • radiative cooling
  • solar energy

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