Designing neighboring-site activation of single atom via tunnel ions for boosting acidic oxygen evolution
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.
Authors
- Chun‐Han Kuo
- Wen‐Jing Zeng (ORCID: https://orcid.org/0009-0000-3342-5396)
- Liming Deng (ORCID: https://orcid.org/0000-0002-8862-9967)
- Zih‐Yi Lin
- Shengjie Peng (ORCID: https://orcid.org/0000-0003-1591-1301)
- Sung‐Fu Hung (ORCID: https://orcid.org/0000-0002-7423-2723)
- Feng Hu (ORCID: https://orcid.org/0000-0002-5346-5384)
- Han‐Yi Chen (ORCID: https://orcid.org/0000-0001-8146-7101)
- Linlin Li (ORCID: https://orcid.org/0000-0001-7181-6654)
- Chenchen Zhang (ORCID: https://orcid.org/0009-0006-7888-301X)
- Ye Wang (ORCID: https://orcid.org/0000-0002-2634-7091)
- Ying Zhang (ORCID: https://orcid.org/0000-0001-6394-3231)
- Luqi Wang (ORCID: https://orcid.org/0000-0003-1256-0219)
- Yixin Hao (ORCID: https://orcid.org/0000-0003-0425-3358)
Institutions
- Jiangnan University (CN)
- National Yang Ming Chiao Tung University (TW)
- National Tsing Hua University (TW)
- Nanjing University of Aeronautics and Astronautics (CN)
Publication Details
- Journal
- Nature Communications
- Published
- 2024-09-13
- DOI
- https://doi.org/10.1038/s41467-024-52410-6
- Citations
- 71
- Primary Topic
- Electrochemical Analysis and Applications
- Type
- article
- Field-Weighted Citation Impact
- 12.24
Funders
- National Natural Science Foundation of China
- Government of Jiangsu Province