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The roles of oxygen mobility and oxygen vacancy in metallic catalysts-prompted dry reforming of methane: A review

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  • Osazuwa, Osarieme Uyi
  • Ng, Kim Hoong

Abstract

Dry reforming of methane (DRM) offers a promising solution for mitigating greenhouse gas emissions by transforming CO2 and CH4 into high-value syngas, a versatile feedstock for the production of fuels and chemicals. During this process, the oxygen dynamics of catalyst serving a critical role in enabling efficient carbon gasification, influencing the reaction mechanism and overall process efficiency. In this regard, this comprehensive review provides an in-depth examination of the impact of oxygen mobility, vacant oxygen sites, and available oxygen species on the catalyst surface. Focusing on Ce-based, Zr-based, Ti-based, and perovskite-based catalysts, this review probes the current state of knowledge on oxygen dynamics in DRM, highlighting the potential of these materials to enhance catalyst performance, stability, and coke resistance. By elucidating the role of oxygen species dynamics in DRM, this review also aims to provide crucial guidance for the design of high-performance, sustainable DRM catalysts that can significantly reduce emissions of greenhouse gas and support transition to a low-carbon economy.

Suggested Citation

  • Osazuwa, Osarieme Uyi & Ng, Kim Hoong, 2026. "The roles of oxygen mobility and oxygen vacancy in metallic catalysts-prompted dry reforming of methane: A review," Renewable Energy, Elsevier, vol. 256(PC).
    • Handle: RePEc:eee:renene:v:256:y:2026:i:pc:s0960148125017380
    DOI: 10.1016/j.renene.2025.124074
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