Abstract
Hydrogen peroxide is manufactured industrially via the anthraquinone autoxidation process—a typical thermocatalytic non-aqueous method. Despite a high interest in using renewable electricity to drive such processes, electrifying non-aqueous syntheses remains a substantial challenge. Here we present a multi-phase electrochemical anthraquinone autoxidation process that leverages an aqueous–non-aqueous interfacial proton-coupled electron transfer method facilitated by heterogeneous molecular mediation. This design enables the reduction of aqueous anthraquinones with high efficiency at high current densities, using only carbon electrodes. The method operates with high selectivity through a quinhydrone intermediate and prevents the over-reduction of aromatics during thermocatalytic hydrogenation. This approach combines the benefits of aqueous electrochemistry with those of the traditional non-aqueous process to achieve high current density electrochemistry with rapid kinetics and mass transport, while avoiding unwanted electrolyte in the hydrogen peroxide product. This strategy bridges aqueous electrochemistry with non-aqueous chemistry and establishes a framework for the electrification and decentralization of other non-aqueous chemical processes.

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All data are available in the Article and Supplementary Information, and are available via figshare at https://doi.org/10.6084/m9.figshare.29817470 (ref. 43).
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Acknowledgements
This research was supported by The Harvard Climate and Sustainability Translational Fund.
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D.X. conceived the idea. D.X. and Y.W. designed and conducted hardware design, tests and electrochemical experiments. Z.Y. studied the hydrogenation and performance of non-aqueous anthraquinones using hydrogen gas. Y.L. did the DFT calculation. R.Y.L. supervised the reaction mechanism study. M.J.A. supervised the project. D.X., Y.W. and M.J.A. drafted the manuscript. All authors edited the manuscript.
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Harvard University has filed a patent application (PCT/US25/10441) based on this work with D.X., Y.W. and M.J.A. as inventors for ‘Electrochemically reducing an aqueous-soluble, non-aqueous-insoluble molecule in an aqueous electrochemical cell to provide ANIHAT to a molecule from which H2O2 is produced upon exposure to O2’. M.J.A. is co-founder of Adiabatic Materials, a startup company that has licensed this intellectual property from Harvard. The remaining authors declare no competing interests.
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Xi, D., Wu, Y., Li, Y. et al. Electrifying industrial hydrogen peroxide production via soft interfacial molecular mediation. Nat. Chem. 17, 1883–1890 (2025). https://doi.org/10.1038/s41557-025-01940-7
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DOI: https://doi.org/10.1038/s41557-025-01940-7


