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Tailoring electrocatalysts for on-site H2O2 production via two electron oxygen reduction
Jing Zhang, Danni Deng, Fangqiang Wang, Yu Bai, Yuchao Wang, Yingbi Chen, Peiyao Yang, Meng Wang, Houzheng Ou, Haitao Zheng, Yongpeng Lei
Compos Funct Mater ›› 2026, Vol. 15 ›› Issue (23) : 20260102.
PDF(2769 KB)
PDF(2769 KB)
Tailoring electrocatalysts for on-site H2O2 production via two electron oxygen reduction
Hydrogen peroxide (H2O2) is a versatile green oxidant widely used in various fields. However, conventional synthesis methods such as the anthraquinone process suffer from high energy consumption, pollution, and safety risks. The electrocatalytic two-electron oxygen reduction reaction (2e⁻ ORR) offers a sustainable alternative by using O2 and H2O as feedstocks under ambient conditions, enabling on-site production with minimal environmental impact. This makes it a key research direction in the field. The main challenge for 2e⁻ ORR toward H2O2 lies in regulating the adsorption energy of the *OOH intermediate while preserving the O-O bond. Based on the reaction mechanism, this Review systematically summarizes recent progress in precious metal catalysts, carbon-based catalysts, metal oxide catalysts, and single-atom catalysts (SACs), along with on-site reactors and applications. It highlights current bottlenecks, including the trade-off among activity, selectivity, and stability, difficulties in large-scale synthesis, and limited real-world adaptability. Future efforts should focus on atomic-level catalyst design, green large-scale synthesis, system integration, and exploration of emerging catalytic systems. This Review aims to provide insights to accelerate the industrialization of electrocatalytic H2O2 production.
H2O2 / Electrocatalysis / 2e⁻ORR / Catalysts / On-site H2O2reactors / Industrial application
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The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this article. Yongpeng Lei is an Associate Editor of this journal and they were not involved in the editorial review or the decision to publish this article.
Jing Zhang and Danni Deng: writing. Fangqiang Wang: visualization. Yu Bai: review. Yuchao Wang: review. Yingbi Chen: review. Peiyao Yang: review. Meng Wang: review. Houzheng Ou: review. Haitao Zheng: review & editing. Yongpeng Lei: supervision, conceptualization. All authors have given approval to the final version of the manuscript.
Author Contributions: # Jing Zhang and Danni Deng contributed equally to this paper.
This work was supported by the National Natural Science Foundation of China (22279165).
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