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<p>Supported catalysis is considered as an ideal catalytic mode as it combines the advantages of homogeneous catalysis (activity and selectivity) and heterogeneous catalysis (separation and recyclability). However, its application is greatly limited by the loss of catalytic performance after immobilization of molecular catalyst on supports. Inspired by the upright feeding posture of stalked crinoids—characterized by outstretched arms with ordered pinnules extending away from the substrate—we addressed this issue by immobilizing of a linear polymer catalyst decorated with aluminum porphyrin on silica. Our catalyst demonstrates remarkable productivity (62.4 kg polyols/g Al porphyrin), polymer selectivity (99%) and proton tolerance (320,000 equiv. to [Al]) under highly dilute conditions (0.000125 mol [Al]%, 17.8 ppm) for telomerization of CO<sub>2</sub> and epoxides, which is greatly improved compared to traditional systems. Furthermore, our catalyst exhibits stability and maintains catalytic performance after three cycles. Our strategy provides a rational approach to designing highly efficient supported catalysts.</p>

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Biomimetic supported catalyst inspired by stalked crinoid

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年4月24日

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  • Can Liao,
  • Shunjie Liu,
  • Qingxian Kuang,
  • Ruoyu Zhang,
  • Chunwei Zhuo,
  • Zhaoyan Sun,
  • Xuesi Chen,
  • Xianhong Wang

摘要

Supported catalysis is considered as an ideal catalytic mode as it combines the advantages of homogeneous catalysis (activity and selectivity) and heterogeneous catalysis (separation and recyclability). However, its application is greatly limited by the loss of catalytic performance after immobilization of molecular catalyst on supports. Inspired by the upright feeding posture of stalked crinoids—characterized by outstretched arms with ordered pinnules extending away from the substrate—we addressed this issue by immobilizing of a linear polymer catalyst decorated with aluminum porphyrin on silica. Our catalyst demonstrates remarkable productivity (62.4 kg polyols/g Al porphyrin), polymer selectivity (99%) and proton tolerance (320,000 equiv. to [Al]) under highly dilute conditions (0.000125 mol [Al]%, 17.8 ppm) for telomerization of CO2 and epoxides, which is greatly improved compared to traditional systems. Furthermore, our catalyst exhibits stability and maintains catalytic performance after three cycles. Our strategy provides a rational approach to designing highly efficient supported catalysts.