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Full-spectrum nonmetallic plasmonic carriers for efficient isopropanol dehydration

Author

Listed:
  • Changhai Lu

    (Jinan University)

  • Daotong You

    (Jinan University)

  • Juan Li

    (Jinan University)

  • Long Wen

    (Jinan University)

  • Baojun Li

    (Jinan University)

  • Tuan Guo

    (Jinan University
    Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai))

  • Zaizhu Lou

    (Jinan University)

Abstract

Plasmonic hot carriers have the advantage of focusing, amplifying, and manipulating optical signals via electron oscillations which offers a feasible pathway to influence catalytic reactions. However, the contribution of nonmetallic hot carriers and thermal effects on the overall reactions are still unclear, and developing methods to enhance the efficiency of the catalysis is critical. Herein, we proposed a new strategy for flexibly modulating the hot electrons using a nonmetallic plasmonic heterostructure (named W18O49-nanowires/reduced-graphene-oxides) for isopropanol dehydration where the reaction rate was 180-fold greater than the corresponding thermocatalytic pathway. The key detail to this strategy lies in the synergetic utilization of ultraviolet light and visible-near-infrared light to enhance the hot electron generation and promote electron transfer for C-O bond cleavage during isopropanol dehydration reaction. This, in turn, results in a reduced reaction activation barrier down to 0.37 eV (compared to 1.0 eV of thermocatalysis) and a significantly improved conversion efficiency of 100% propylene from isopropanol. This work provides an additional strategy to modulate hot carrier of plasmonic semiconductors and helps guide the design of better catalytic materials and chemistries.

Suggested Citation

  • Changhai Lu & Daotong You & Juan Li & Long Wen & Baojun Li & Tuan Guo & Zaizhu Lou, 2022. "Full-spectrum nonmetallic plasmonic carriers for efficient isopropanol dehydration," Nature Communications, Nature, vol. 13(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:13:y:2022:i:1:d:10.1038_s41467-022-34738-z
    DOI: 10.1038/s41467-022-34738-z
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    References listed on IDEAS

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    1. Yuki Nakaya & Jun Hirayama & Seiji Yamazoe & Ken-ichi Shimizu & Shinya Furukawa, 2020. "Single-atom Pt in intermetallics as an ultrastable and selective catalyst for propane dehydrogenation," Nature Communications, Nature, vol. 11(1), pages 1-7, December.
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    Cited by:

    1. Xueying Wan & Yifan Li & Yihong Chen & Jun Ma & Ying-Ao Liu & En-Dian Zhao & Yadi Gu & Yilin Zhao & Yi Cui & Rongtan Li & Dong Liu & Ran Long & Kim Meow Liew & Yujie Xiong, 2024. "A nonmetallic plasmonic catalyst for photothermal CO2 flow conversion with high activity, selectivity and durability," Nature Communications, Nature, vol. 15(1), pages 1-9, December.

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