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Enhanced hybrid photocatalytic dry reforming using a phosphated Ni-CeO2 nanorod heterostructure

Author

Listed:
  • Alexandra Tavasoli

    (University of Toronto
    University of Toronto)

  • Abdelaziz Gouda

    (University of Toronto
    University of Toronto)

  • Till Zähringer

    (University of Toronto)

  • Young Feng Li

    (University of Toronto)

  • Humayra Quaid

    (University of Toronto)

  • Camilo J. Viasus Perez

    (University of Toronto)

  • Rui Song

    (University of Toronto)

  • Mohini Sain

    (University of Toronto)

  • Geoffrey Ozin

    (University of Toronto)

Abstract

Operating the dry reforming reaction photocatalytically presents an opportunity to produce commodity chemicals from two greenhouse gases, carbon dioxide and methane, however, the top-performing photocatalysts presented in the academic literature invariably rely on the use of precious metals. In this work, we demonstrate enhanced photocatalytic dry reforming performance through surface basicity modulation of a Ni-CeO2 photocatalyst by selectively phosphating the surface of the CeO2 nanorod support. An optimum phosphate content is observed, which leads to little photoactivity loss and carbon deposition over a 50-hour reaction period. The enhanced activity is attributed to the Lewis basic properties of the PO43− groups which improve CO2 adsorption and facilitate the formation of small nickel metal clusters on the support surface, as well as the mechanical stability of CePO4. A hybrid photochemical-photothermal reaction mechanism is demonstrated by analyzing the wavelength-dependent photocatalytic activities. The activities, turnover numbers, quantum efficiencies, and energy efficiencies are shown to be on par with other dry-reforming photocatalysts that use noble metals, representing a step forward in understanding how to stabilize ignoble nickel-based dry reforming photocatalysts. The challenges associated with comparing the performance of photocatalysts reported in the academic literature are also commented on.

Suggested Citation

  • Alexandra Tavasoli & Abdelaziz Gouda & Till Zähringer & Young Feng Li & Humayra Quaid & Camilo J. Viasus Perez & Rui Song & Mohini Sain & Geoffrey Ozin, 2023. "Enhanced hybrid photocatalytic dry reforming using a phosphated Ni-CeO2 nanorod heterostructure," Nature Communications, Nature, vol. 14(1), pages 1-8, December.
  • Handle: RePEc:nat:natcom:v:14:y:2023:i:1:d:10.1038_s41467-023-36982-3
    DOI: 10.1038/s41467-023-36982-3
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    References listed on IDEAS

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    1. Linan Zhou & John Mark P. Martirez & Jordan Finzel & Chao Zhang & Dayne F. Swearer & Shu Tian & Hossein Robatjazi & Minhan Lou & Liangliang Dong & Luke Henderson & Phillip Christopher & Emily A. Carte, 2020. "Light-driven methane dry reforming with single atomic site antenna-reactor plasmonic photocatalysts," Nature Energy, Nature, vol. 5(1), pages 61-70, January.
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    Cited by:

    1. Hui Wang & Guoqing Cui & Hao Lu & Zeyang Li & Lei Wang & Hao Meng & Jiong Li & Hong Yan & Yusen Yang & Min Wei, 2024. "Facilitating the dry reforming of methane with interfacial synergistic catalysis in an Ir@CeO2−x catalyst," Nature Communications, Nature, vol. 15(1), pages 1-10, December.

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