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Photoinduced semiconductor-metal transition in ultrathin troilite FeS nanosheets to trigger efficient hydrogen evolution

Author

Listed:
  • Gang Zhou

    (Nanjing University)

  • Yun Shan

    (Nanjing University
    Nanjing Xiaozhuang University)

  • Longlu Wang

    (Hunan University)

  • Youyou Hu

    (Jiangsu University of Science and Technology)

  • Junhong Guo

    (Nanjing University of Posts and Telecommunications)

  • Fangren Hu

    (Nanjing University of Posts and Telecommunications)

  • Jiancang Shen

    (Nanjing University)

  • Yu Gu

    (Nanjing University)

  • Jingteng Cui

    (Nanjing Xiaozhuang University)

  • Lizhe Liu

    (Nanjing University)

  • Xinglong Wu

    (Nanjing University)

Abstract

The exploitation of the stable and earth-abundant electrocatalyst with high catalytic activity remains a significant challenge for hydrogen evolution reaction. Being different from complex nanostructuring, this work focuses on a simple and feasible way to improve hydrogen evolution reaction performance via manipulation of intrinsic physical properties of the material. Herein, we present an interesting semiconductor-metal transition in ultrathin troilite FeS nanosheets triggered by near infrared radiation at near room temperature for the first time. The photogenerated metal-phase FeS nanosheets demonstrate intrinsically high catalytic activity and fast carrier transfer for hydrogen evolution reaction, leading to an overpotential of 142 mV at 10 mA cm−2 and a lower Tafel slope of 36.9 mV per decade. Our findings provide new inspirations for the steering of electron transfer and designing new-type catalysts.

Suggested Citation

  • Gang Zhou & Yun Shan & Longlu Wang & Youyou Hu & Junhong Guo & Fangren Hu & Jiancang Shen & Yu Gu & Jingteng Cui & Lizhe Liu & Xinglong Wu, 2019. "Photoinduced semiconductor-metal transition in ultrathin troilite FeS nanosheets to trigger efficient hydrogen evolution," Nature Communications, Nature, vol. 10(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-08358-z
    DOI: 10.1038/s41467-019-08358-z
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    Cited by:

    1. Gang Zhou & Peifang Wang & Bin Hu & Xinyue Shen & Chongchong Liu & Weixiang Tao & Peilin Huang & Lizhe Liu, 2022. "Spin-related symmetry breaking induced by half-disordered hybridization in BixEr2-xRu2O7 pyrochlores for acidic oxygen evolution," Nature Communications, Nature, vol. 13(1), pages 1-10, December.

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