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<p>With the rising levels of atmospheric CO<sub>2</sub>, the global greenhouse effect is becoming increasingly severe. To address the challenge of reducing atmospheric CO<sub>2</sub> concentrations and transforming it into valuable resources, this study developed a fiber catalyst supported by polyacrylonitrile fiber (PANF) incorporating frustrated Lewis pairs (FLPs). This catalyst was employed to selectively catalyze the fixation reaction of epichlorohydrin with CO<sub>2</sub>. Experimental results demonstrate that the catalytic activity of the synthesized catalyst is primarily influenced by factors such as functionality, reaction temperature, catalyst dosage, and reaction time. Notably, the low-functionalized PANF-tFLP exhibits enhanced catalytic activity, efficiently and selectively facilitating the reaction between carbon dioxide and epichlorohydrin to form cyclic carbonate with a catalytic dosage as low as 0.1&#xa0;mol%, achieving yields of up to 99%, and it has a wide range of substrate applicability. Furthermore, this fiber catalyst can be reused at least five times. Its low raw material cost, straightforward preparation process, and excellent flexibility confer significant advantages in mitigating the greenhouse effect and promoting the recycling and reuse of resources.</p> Graphical abstract <p></p>

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Polyacrylonitrile-supported frustrated Lewis pair catalysis of CO2 into cyclic carbonates

  • 期刊论文

  • 发表日期：

    2025年10月9日

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  • Haitao Cui,
  • Pengyu Li,
  • Yongqiang Chen,
  • Yahui Yuan,
  • Senhao Wang,
  • Kai Xu,
  • Yuanyuan Liu,
  • Mingli Jiao

摘要

With the rising levels of atmospheric CO2, the global greenhouse effect is becoming increasingly severe. To address the challenge of reducing atmospheric CO2 concentrations and transforming it into valuable resources, this study developed a fiber catalyst supported by polyacrylonitrile fiber (PANF) incorporating frustrated Lewis pairs (FLPs). This catalyst was employed to selectively catalyze the fixation reaction of epichlorohydrin with CO2. Experimental results demonstrate that the catalytic activity of the synthesized catalyst is primarily influenced by factors such as functionality, reaction temperature, catalyst dosage, and reaction time. Notably, the low-functionalized PANF-tFLP exhibits enhanced catalytic activity, efficiently and selectively facilitating the reaction between carbon dioxide and epichlorohydrin to form cyclic carbonate with a catalytic dosage as low as 0.1 mol%, achieving yields of up to 99%, and it has a wide range of substrate applicability. Furthermore, this fiber catalyst can be reused at least five times. Its low raw material cost, straightforward preparation process, and excellent flexibility confer significant advantages in mitigating the greenhouse effect and promoting the recycling and reuse of resources.

Graphical abstract