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Intermolecular cascaded π-conjugation channels for electron delivery powering CO2 photoreduction

Author

Listed:
  • Shengyao Wang

    (Huazhong Agricultural University
    National Institute for Materials Science (NIMS), 1-1 Namiki)

  • Xiao Hai

    (National Institute for Materials Science (NIMS), 1-1 Namiki
    Hokkaido University)

  • Xing Ding

    (Huazhong Agricultural University)

  • Shangbin Jin

    (Huazhong University of Science and Technology)

  • Yonggang Xiang

    (Huazhong Agricultural University)

  • Pei Wang

    (Huazhong Agricultural University)

  • Bo Jiang

    (National Institute for Materials Science (NIMS), 1-1 Namiki)

  • Fumihiko Ichihara

    (National Institute for Materials Science (NIMS), 1-1 Namiki
    Hokkaido University)

  • Mitsutake Oshikiri

    (National Institute for Materials Science (NIMS), 1-1 Namiki
    National Institute for Materials Science (NIMS))

  • Xianguang Meng

    (National Institute for Materials Science (NIMS), 1-1 Namiki)

  • Yunxiang Li

    (National Institute for Materials Science (NIMS), 1-1 Namiki
    Hokkaido University)

  • Wakana Matsuda

    (Kyoto University)

  • Jun Ma

    (Kyoto University)

  • Shu Seki

    (Kyoto University)

  • Xuepeng Wang

    (Huazhong Agricultural University)

  • Hao Huang

    (National Institute for Materials Science (NIMS), 1-1 Namiki)

  • Yoshiki Wada

    (Electroceramics Group, National Institute for Materials Science (NIMS))

  • Hao Chen

    (Huazhong Agricultural University)

  • Jinhua Ye

    (National Institute for Materials Science (NIMS), 1-1 Namiki
    Hokkaido University
    Tianjin University)

Abstract

Photoreduction of CO2 to fuels offers a promising strategy for managing the global carbon balance using renewable solar energy. But the decisive process of oriented photogenerated electron delivery presents a considerable challenge. Here, we report the construction of intermolecular cascaded π-conjugation channels for powering CO2 photoreduction by modifying both intramolecular and intermolecular conjugation of conjugated polymers (CPs). This coordination of dual conjugation is firstly proved by theoretical calculations and transient spectroscopies, showcasing alkynyl-removed CPs blocking the delocalization of electrons and in turn delivering the localized electrons through the intermolecular cascaded channels to active sites. Therefore, the optimized CPs (N-CP-D) exhibiting CO evolution activity of 2247 μmol g−1 h−1 and revealing a remarkable enhancement of 138-times compared to unmodified CPs (N-CP-A).

Suggested Citation

  • Shengyao Wang & Xiao Hai & Xing Ding & Shangbin Jin & Yonggang Xiang & Pei Wang & Bo Jiang & Fumihiko Ichihara & Mitsutake Oshikiri & Xianguang Meng & Yunxiang Li & Wakana Matsuda & Jun Ma & Shu Seki , 2020. "Intermolecular cascaded π-conjugation channels for electron delivery powering CO2 photoreduction," Nature Communications, Nature, vol. 11(1), pages 1-9, December.
    • Handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-14851-7
    DOI: 10.1038/s41467-020-14851-7
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    Cited by:

    1. Sanchita Karmakar & Soumitra Barman & Faruk Ahamed Rahimi & Darsi Rambabu & Sukhendu Nath & Tapas Kumar Maji, 2023. "Confining charge-transfer complex in a metal-organic framework for photocatalytic CO2 reduction in water," Nature Communications, Nature, vol. 14(1), pages 1-13, December.
    2. Yuyan Huang & Minhui Shen & Huijie Yan & Yingge He & Jianqiao Xu & Fang Zhu & Xin Yang & Yu-Xin Ye & Gangfeng Ouyang, 2024. "Achieving a solar-to-chemical efficiency of 3.6% in ambient conditions by inhibiting interlayer charges transport," Nature Communications, Nature, vol. 15(1), pages 1-15, December.
    3. Yanbiao Shi & Jie Li & Chengliang Mao & Song Liu & Xiaobing Wang & Xiufan Liu & Shengxi Zhao & Xiao Liu & Yanqiang Huang & Lizhi Zhang, 2021. "Van Der Waals gap-rich BiOCl atomic layers realizing efficient, pure-water CO2-to-CO photocatalysis," Nature Communications, Nature, vol. 12(1), pages 1-10, December.

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