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August 20, 2026ACS Catalysis

Photocatalytic Redox Coupling Toward Simultaneous Energy Conversion and Chemical Synthesis: A Critical Review of Sacrificial-Agent-Free Systems

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Authors

MSMeng SuChinese Academy of SciencesWJWei-Dong JiangFXFang‐Xing XiaoChinese Academy of Sciences

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Implication

Review demonstrates photocatalytic redox coupling systems for concurrent solar fuel production and organic synthesis without sacrificial agents, highlighting mechanisms to boost energy efficiency.

Key Points

  • To review the progress, underlying mechanisms, and material design strategies of sacrificial-agent-free photocatalytic redox coupling systems for simultaneous energy conversion and chemical synthesis.
  • Systematic review of three core reaction categories: H2 production coupling, CO2 reduction coupling, and H2O2 generation coupling.
  • Evaluation of key catalyst design strategies, including internal electric field regulation, heterojunction construction, and defect engineering.
  • Analysis of practical applications in organic transformation, biomass upgrading, and pollutant degradation.
  • Coupled redox systems enable the concurrent utilization of photogenerated electrons and holes, completely circumventing the requirement for sacrificial agents.
  • Key engineering strategies, such as heterojunction fabrication and defect modulation, overcome charge separation bottlenecks and improve reaction kinetics.
  • Simultaneous redox coupling successfully achieves dual functional outputs by combining solar fuel generation with the synthesis of high-value-added chemicals.

Cite This Study

Su et al. (2026) studied this question.

synapsesocial.com/papers/6a86b5eb8a91293e6a1cd7d6https://doi.org/10.1021/acscatal.6c04542
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