Dynamically Dual‐Center Coupled Synergistic Catalysis for Highly Efficient Oxygen Reduction
The oxygen reduction reaction (ORR) suffers from inherent kinetic limitations arising from the competitive adsorption behavior of *OOH intermediates and their divergent conversion pathways toward either the 4e⁻-dominant route or the 2e⁻-peroxide byproduct. Conventional single-component catalysts fundamentally lack temporal-spatial control to simultaneously accelerate O─O bond cleavage while suppressing *H<sub>2</sub>O<sub>2</sub> desorption. To overcome this kinetic dilemma, herein, we propose a dynamically dual-center coupled synergistic (DCCS) catalytic mechanism enabled by precisely engineered PdRh─Pt nanosheet binary-component interfaces. Multidimensional in situ synchrotron radiation spectroscopy and theoretical studies reveal that the activated 4e⁻ pathway primarily occurs at PdRh sites. Additionally, Pt centers selectively reduce *OOH to *O and *H<sub>2</sub>O<sub>2</sub>, whereas neighboring PdRh sites facilitate ultrafast *H<sub>2</sub>O<sub>2</sub> migration and dissociation, effectively complementing the 4e⁻-dominant pathway. Hence, the DCCS catalysis redirects traditionally divergent product pathways toward a singular target product. This interfacial kinetic synergy achieves ultrahigh 4e⁻ kinetics, demonstrated by a six-fold increase of turnover frequency compared to that of commercial Pt/C. Moreover, the derived rechargeable Zn‒air batteries demonstrate exceptional stability over 200 h, establishing a new design principle for breaking kinetics trade-offs in heterogeneous catalysis through molecularly scheduling reaction pathways.
Authors
- Qizheng An
- Wanlin Zhou (ORCID: https://orcid.org/0009-0000-3126-2247)
- Chenyu Yang (ORCID: https://orcid.org/0000-0002-5000-3408)
- Yuhao Zhang (ORCID: https://orcid.org/0000-0003-4332-3910)
- Shuowen Bo
- Jiulong Wu (ORCID: https://orcid.org/0009-0007-1635-3440)
- Qinghua Liu (ORCID: https://orcid.org/0000-0003-4090-3311)
- Jing Zhang (ORCID: https://orcid.org/0000-0003-3513-6533)
- Baojie Li (ORCID: https://orcid.org/0000-0002-1211-5222)
- Xin Chen (ORCID: https://orcid.org/0000-0001-5862-421X)
- Jingjing Jiang (ORCID: https://orcid.org/0000-0002-5390-9715)
Institutions
- University of Science and Technology of China (CN)
- Southwest Petroleum University (CN)
- Zhengzhou University (CN)
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation (CN)
- National Synchrotron Radiation Laboratory (CN)
Publication Details
- Journal
- Angewandte Chemie International Edition
- Published
- 2025-06-21
- DOI
- https://doi.org/10.1002/anie.202510188
- Citations
- 6
- Primary Topic
- Electrocatalysts for Energy Conversion
- Type
- article
- Field-Weighted Citation Impact
- 2.18
Funders
- Salt Science Research Foundation
- National Natural Science Foundation of China
- University of Science and Technology of China
- National Synchrotron Radiation Laboratory
- Natural Science Foundation of Anhui Province