Industrial‐Grade H <sub>2</sub> O <sub>2</sub> Electrosynthesis via N/O‐Doped Hierarchically Porous Carbon Nanoreactors with Remarkable Yield and Stability
The two-electron oxygen reduction reaction (2e<sup>-</sup> ORR) enables sustainable electrochemical production of hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>), providing a green alternative to the traditional anthraquinone process. Herein, we report N/O dual-doped hierarchically porous carbon nanoreactors (N/O-HPCNs) derived from ZIF-8 via a facile one-step pyrolysis. The optimized catalyst achieves ∼90% H<sub>2</sub>O<sub>2</sub> selectivity over a wide potential range in 0.10 M KOH. Crucially, in a flow cell, N/O-HPCNs deliver an industrial-grade current density of 200 mA cm<sup>-2</sup> with 92.8% Faradaic efficiency and a remarkable H<sub>2</sub>O<sub>2</sub> yield of 17.3 mol g<sup>-1</sup> h<sup>-1</sup>, while maintaining > 80% Faraday efficiency for 100 h. Finite element simulations confirm that hierarchical pores enhance mass transfer and reduce H<sub>2</sub>O<sub>2</sub> residence time, while DFT calculations elucidate the distinct roles of N doping for activity and oxygen functional groups in promoting 2e<sup>-</sup> ORR selectivity. This work provides a scalable strategy for sustainable H<sub>2</sub>O<sub>2</sub> production.
Authors
- Chenyang Li (ORCID: https://orcid.org/0000-0003-4639-8571)
- Huijuan Jing (ORCID: https://orcid.org/0000-0003-1627-9803)
- Zhong‐Shuai Wu (ORCID: https://orcid.org/0000-0003-1851-4803)
- Hongnan Du
- Cheng Tang (ORCID: https://orcid.org/0000-0003-4543-7591)
- Zichen Xu (ORCID: https://orcid.org/0000-0002-1036-4401)
- Jian Liu (ORCID: https://orcid.org/0000-0002-0095-8978)
- Tianyi Liu (ORCID: https://orcid.org/0000-0002-2624-7146)
- Haitao Li (ORCID: https://orcid.org/0000-0002-3740-571X)
- Zhongwei Tan (ORCID: https://orcid.org/0000-0002-8916-1614)
- Yunyun Xu
- Xiaolu Tang (ORCID: https://orcid.org/0000-0002-8449-7653)
Institutions
- Harbin University (CN)
- Fuyang Normal University (CN)
- Harbin Engineering University (CN)
- Dalian Institute of Chemical Physics (CN)
- Chinese Academy of Sciences (CN)
- Inner Mongolia University (CN)
- University of Surrey (GB)
- University of Chinese Academy of Sciences (CN)
- Heilongjiang University (CN)
- Tsinghua University (CN)
Publication Details
- Journal
- Angewandte Chemie International Edition
- Published
- 2025-12-12
- DOI
- https://doi.org/10.1002/anie.202519013
- Citations
- 1
- Primary Topic
- Electrocatalysts for Energy Conversion
- Type
- article
- Field-Weighted Citation Impact
- 0.36