Separation-free artificial photosynthesis of concentrated hydrogen peroxide and value-added fuels over Ta atomic sites

Hao Tan, Peng Zhou, Yu Gu, Youxing Liu, Wenxing Chen, Hongyu Guo, Fangxu Lin, Heng Luo, Xiaoqing Cao, Lingyou Zeng, Mingchuan Luo and Shaojun Guo ()
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Hao Tan: Peking University
Peng Zhou: Peking University Shenzhen Graduate School
Yu Gu: Peking University
Youxing Liu: Peking University
Wenxing Chen: Beijing Institute of Technology
Hongyu Guo: Peking University
Fangxu Lin: Peking University
Heng Luo: Peking University
Xiaoqing Cao: Peking University
Lingyou Zeng: Peking University
Mingchuan Luo: Peking University
Shaojun Guo: Peking University

Nature Communications, 2025, vol. 16, issue 1, 1-10

Abstract: Abstract Solar-driven artificial photosynthesis of hydrogen peroxide and high-value chemicals from oxygen and biomass is promising but is hindered by poor light absorption, sluggish kinetics of biomass dehydrogenation, and low oxygen reduction selectivity. Herein, we develop a resorcinol-formaldehyde resin/carbon-supported Ta-N2O2 single-atom catalyst (RF/C-TaSA) that enables broad-spectrum light harvesting (> 932 nm) and selective biomass conversion in a solid-organic-aqueous three-phase system. RF/C-TaSA achieves a high 3.0% quantum yield at 635 nm, with Ta-N2O2 sites stabilizing intermediates and reducing the energy barrier for biomass conversion. We further demonstrate that RF/C-TaSA enables efficient artificial photosynthesis of H2O2 and value-added chemicals from more available thatch, pine needles and wastepaper. Combining catalyst innovation and system engineering, we build a solar-powered RF/C-TaSA-based photocatalytic device for directly producing commercially viable H2O2 at a high concentration of 3 wt% and high-value-added chemical without requiring energy-intensive separation processes for 70-day operation. Furthermore, the produced crude concentrated H2O2 can also be readily converted to solid H2O2 powder (Na2CO3 ∙ 1.5 H2O2) for ease of storage and transport with high sterilization activities even after 6 months.

Date: 2025
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DOI: 10.1038/s41467-025-63838-9

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