Ambient Preparation of Benzoxazine-based Phenolic Resins Enables Long-term Sustainable Photosynthesis of Hydrogen Peroxide

Xinyao Wang, Xiaowei Yang, Chen Zhao, Yutong Pi, Xiaobo Li, Zhongfan Jia, Si Zhou, Jijun Zhao, Limin Wu, Jian Liu

Research output: Contribution to journalArticlepeer-review

34 Citations (Scopus)
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Abstract

Rational design of polymer structures at the molecular level promotes the iteration of high-performance photocatalyst for sustainable photocatalytic hydrogen peroxide (H2O2) production from oxygen and water, which also lays the basis for revealing the reaction mechanism. Here we report a benzoxazine-based m-aminophenol-formaldehyde resin (APFac) polymerized at ambient conditions, exhibiting superior H2O2 yield and long-term stability to most polymeric photocatalysts. Benzoxazine structure was identified as the crucial photocatalytic active segment in APFac. Favorable adsorption of oxygen/intermediates on benzoxazine structure and commendable product selectivity accelerated the reaction kinetically in stepwise single-electron oxygen reduction reaction. The proposed benzoxazine-based phenolic resin provides the possibility of production in batches and industrial application, and sheds light on the de novo design and analysis of metal-free polymeric photocatalysts.

Original languageEnglish
Article numbere202302829
Number of pages7
JournalAngewandte Chemie-International Edition
Volume62
Issue number23
Early online date25 Mar 2023
DOIs
Publication statusPublished - 5 Jun 2023

Keywords

  • Benzoxazine Structure
  • H O Photosynthesis
  • Heterogeneous Photocatalysis
  • Oxygen Intermediate Adsorption
  • Phenolic Resin

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