Designing neighboring-site activation of single atom via tunnel ions for boosting acidic oxygen evolution.

Autor: Hao Y; College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, 210016, Nanjing, China., Hung SF; Department of Applied Chemistry, National Yang Ming Chiao Tung University, Hsinchu, 300, Taiwan., Wang L; College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, 210016, Nanjing, China., Deng L; College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, 210016, Nanjing, China., Zeng WJ; Department of Applied Chemistry, National Yang Ming Chiao Tung University, Hsinchu, 300, Taiwan., Zhang C; Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, 214122, Wuxi, Jiangsu, China., Lin ZY; Department of Applied Chemistry, National Yang Ming Chiao Tung University, Hsinchu, 300, Taiwan., Kuo CH; Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu, 30013, Taiwan., Wang Y; College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, 210016, Nanjing, China., Zhang Y; Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, 214122, Wuxi, Jiangsu, China., Chen HY; Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu, 30013, Taiwan., Hu F; College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, 210016, Nanjing, China., Li L; College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, 210016, Nanjing, China., Peng S; College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, 210016, Nanjing, China. pengshengjie@nuaa.edu.cn.
Jazyk: angličtina
Zdroj: Nature communications [Nat Commun] 2024 Sep 13; Vol. 15 (1), pp. 8015. Date of Electronic Publication: 2024 Sep 13.
DOI: 10.1038/s41467-024-52410-6
Abstrakt: Realizing an efficient turnover frequency in the acidic oxygen evolution reaction by modifying the reaction configuration is crucial in designing high-performance single-atom catalysts. Here, we report a "single atom-double site" concept, which involves an activatable inert manganese atom redox chemistry in a single-atom Ru-Mn dual-site platform with tunnel Ni ions as the trigger. In contrast to conventional single-atom catalysts, the proposed configuration allows direct intramolecular oxygen coupling driven by the Ni ions intercalation effect, bypassing the secondary deprotonation step instead of the kinetically sluggish adsorbate evolution mechanism. The strong bonding of Ni ions activates the inert manganese terminal groups and inhibits the cross-site disproportionation process inherent in the Mn scaffolding, which is crucial to ensure the dual-site platform. As a result, the single-atom Ru-Ni-Mn octahedral molecular sieves catalyst delivers a low overpotential, adequate mass activity and good stability.
(© 2024. The Author(s).)
Databáze: MEDLINE
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