Volume 137, Issue 8 e202420481
Forschungsartikel

Breaking the Stability-Activity Trade-off of Oxygen Electrocatalyst by Gallium Bilateral-Regulation for High-Performance Zinc-Air Batteries

Dr. Yunrui Li

Dr. Yunrui Li

Ordos Laboratory, Ordos, Inner Mongolia Autonomous Region 010020 China

Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology, Department of Chemical Engineering, Tsinghua University, Gongwuguan Building, Tsinghua University, Beijing, 100084 China

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Jiaqi Xu

Jiaqi Xu

Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology, Department of Chemical Engineering, Tsinghua University, Gongwuguan Building, Tsinghua University, Beijing, 100084 China

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Fan Lan

Fan Lan

Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology, Department of Chemical Engineering, Tsinghua University, Gongwuguan Building, Tsinghua University, Beijing, 100084 China

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Prof. Yao Wang

Prof. Yao Wang

School of Chemical and Material Engineering, Jiangnan University, 214122 Wuxi, China

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Hairong Jiang

Hairong Jiang

Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology, Department of Chemical Engineering, Tsinghua University, Gongwuguan Building, Tsinghua University, Beijing, 100084 China

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Dr. Xueke Wu

Dr. Xueke Wu

Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology, Department of Chemical Engineering, Tsinghua University, Gongwuguan Building, Tsinghua University, Beijing, 100084 China

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Ya Huang

Ya Huang

Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology, Department of Chemical Engineering, Tsinghua University, Gongwuguan Building, Tsinghua University, Beijing, 100084 China

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Run Li

Run Li

Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology, Department of Chemical Engineering, Tsinghua University, Gongwuguan Building, Tsinghua University, Beijing, 100084 China

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Dr. Qinyuan Jiang

Dr. Qinyuan Jiang

Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology, Department of Chemical Engineering, Tsinghua University, Gongwuguan Building, Tsinghua University, Beijing, 100084 China

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Dr. Di Gao

Dr. Di Gao

Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology, Department of Chemical Engineering, Tsinghua University, Gongwuguan Building, Tsinghua University, Beijing, 100084 China

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Dr. Ping Zhu

Dr. Ping Zhu

Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology, Department of Chemical Engineering, Tsinghua University, Gongwuguan Building, Tsinghua University, Beijing, 100084 China

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Siming Zhao

Siming Zhao

Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology, Department of Chemical Engineering, Tsinghua University, Gongwuguan Building, Tsinghua University, Beijing, 100084 China

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Yanlong Zhao

Yanlong Zhao

Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology, Department of Chemical Engineering, Tsinghua University, Gongwuguan Building, Tsinghua University, Beijing, 100084 China

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Fei Wang

Fei Wang

Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology, Department of Chemical Engineering, Tsinghua University, Gongwuguan Building, Tsinghua University, Beijing, 100084 China

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Libo Zhang

Libo Zhang

Sinopec Beijing Research Institute of Chemical Industry, 10013 Beijing, China

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Dr. Longgui Zhang

Dr. Longgui Zhang

Sinopec Beijing Research Institute of Chemical Industry, 10013 Beijing, China

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Prof. Rufan Zhang

Corresponding Author

Prof. Rufan Zhang

Ordos Laboratory, Ordos, Inner Mongolia Autonomous Region 010020 China

Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology, Department of Chemical Engineering, Tsinghua University, Gongwuguan Building, Tsinghua University, Beijing, 100084 China

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First published: 23 December 2024

Abstract

The rational design of metal oxide catalysts with enhanced oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) performance is crucial for the practical application of aqueous rechargeable zinc-air batteries (a-r-ZABs). Precisely regulating the electronic environment of metal-oxygen (M−O) active species is critical yet challenging for improving their activity and stability toward OER and ORR. Herein, we propose an atomic-level bilateral regulation strategy by introducing atomically dispersed Ga for continuously tuning the electronic environment of Ru−O and Mn−O in the Ga/MnRuO2 catalyst. The Ga/MnRuO2 catalyst breaks the stability-activity restriction, showing remarkable bifunctional performance with a low potential gap (ΔE) of 0.605 V and super durability with negligible performance degradation (300,000 ORR cycles or 30,000 OER cycles). The theoretical calculations revealed that the strong coupling electron interactions between Ga and Ru−O/Mn−O tuned the valence state distribution of the metal center, effectively modulating the adsorption behavior of *O/*OH, thus optimizing the reaction pathways and reducing the reaction barriers. The a-r-ZABs based on Ga/MnRuO2 catalysts exhibited excellent performance with a wide working temperature range of −20–60 °C and a long lifetime of 2308 hours (i.e., 13,848 cycles) under a current density of 5 mA cm−2 at −20 °C.

Conflict of Interests

The authors declare no competing interests

Data Availability Statement

The data that support the findings of this study are available from the corresponding author upon reasonable request.

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