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Unravelling the effect of charge dynamics at the plasmonic metal/semiconductor interface for CO2 photoreduction

Author

Listed:
  • Laura Collado

    (Avda. Ramón de la Sagra 3
    Institute IMDEA Energy, Avda. Ramón de la Sagra 3)

  • Anna Reynal

    (Imperial College London, Exhibition Road
    School of Science, Engineering and Design, Teesside University)

  • Fernando Fresno

    (Avda. Ramón de la Sagra 3)

  • Mariam Barawi

    (Avda. Ramón de la Sagra 3)

  • Carlos Escudero

    (ALBA Synchrotron Light Source)

  • Virginia Perez-Dieste

    (ALBA Synchrotron Light Source)

  • Juan M. Coronado

    (Institute IMDEA Energy, Avda. Ramón de la Sagra 3)

  • David P. Serrano

    (Institute IMDEA Energy, Avda. Ramón de la Sagra 3
    Rey Juan Carlos University, c/ Tulipán s/n)

  • James R. Durrant

    (Imperial College London, Exhibition Road)

  • Víctor A. Peña O’Shea

    (Avda. Ramón de la Sagra 3)

Abstract

Sunlight plays a critical role in the development of emerging sustainable energy conversion and storage technologies. Light-induced CO2 reduction by artificial photosynthesis is one of the cornerstones to produce renewable fuels and environmentally friendly chemicals. Interface interactions between plasmonic metal nanoparticles and semiconductors exhibit improved photoactivities under a wide range of the solar spectrum. However, the photo-induced charge transfer processes and their influence on photocatalysis with these materials are still under debate, mainly due to the complexity of the involved routes occurring at different timescales. Here, we use a combination of advanced in situ and time-resolved spectroscopies covering different timescales, combined with theoretical calculations, to unravel the overall mechanism of photocatalytic CO2 reduction by Ag/TiO2 catalysts. Our findings provide evidence of the key factors determining the enhancement of photoactivity under ultraviolet and visible irradiation, which have important implications for the design of solar energy conversion materials.

Suggested Citation

  • Laura Collado & Anna Reynal & Fernando Fresno & Mariam Barawi & Carlos Escudero & Virginia Perez-Dieste & Juan M. Coronado & David P. Serrano & James R. Durrant & Víctor A. Peña O’Shea, 2018. "Unravelling the effect of charge dynamics at the plasmonic metal/semiconductor interface for CO2 photoreduction," Nature Communications, Nature, vol. 9(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:9:y:2018:i:1:d:10.1038_s41467-018-07397-2
    DOI: 10.1038/s41467-018-07397-2
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    Cited by:

    1. Yang Liu & Jianhui Sun & Houhou Huang & Linlu Bai & Xiaomeng Zhao & Binhong Qu & Lunqiao Xiong & Fuquan Bai & Junwang Tang & Liqiang Jing, 2023. "Improving CO2 photoconversion with ionic liquid and Co single atoms," Nature Communications, Nature, vol. 14(1), pages 1-11, December.
    2. Yixuan Wang & Yang Liu & Lingling Wang & Silambarasan Perumal & Hongdan Wang & Hyun Ko & Chung-Li Dong & Panpan Zhang & Shuaijun Wang & Ta Thi Thuy Nga & Young Dok Kim & Yujing Ji & Shufang Zhao & Ji-, 2024. "Coupling photocatalytic CO2 reduction and CH3OH oxidation for selective dimethoxymethane production," Nature Communications, Nature, vol. 15(1), pages 1-15, December.

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