Iron-complex-based catalytic system for high-performance water oxidation in aqueous media
Water oxidation is the key reaction in natural and artificial photosyntheses but is kinetically and thermodynamically sluggish. Extensive efforts have been made to develop artificial systems comparable to the natural system. However, constructing a molecular system based on ubiquitous metal ions with high performance in aqueous media similar to a natural system, remains challenging. In this study, inspired by nature, we successfully achieve highly efficient water oxidation in aqueous media. By electrochemical polymerisation of a pentanuclear iron complex bearing carbazole moieties, we successfully integrate two essential features of the natural system: catalytic centre composed of ubiquitous metal ions and charge transporting site. The resulting material catalyses water oxidation with a Faradaic efficiency of up to 99% in aqueous media. Our results provide a strategy to develop catalytic systems for water oxidation.
Authors
- Yutaka Saga (ORCID: https://orcid.org/0009-0008-3718-3222)
- Mio Kondo (ORCID: https://orcid.org/0000-0001-9627-2331)
- Hikaru Iwami (ORCID: https://orcid.org/0000-0003-2311-8100)
- Tetsuya Kambe (ORCID: https://orcid.org/0000-0002-9216-2693)
- Susumu Kuwabata (ORCID: https://orcid.org/0000-0002-4606-964X)
- Yoshihisa Harada (ORCID: https://orcid.org/0000-0002-4590-9109)
- Kento Kosugi (ORCID: https://orcid.org/0000-0001-8273-5120)
- Daisuke Asakura (ORCID: https://orcid.org/0000-0001-7502-8858)
- Hisao Kiuchi (ORCID: https://orcid.org/0000-0001-9139-8218)
- Taro Uematsu (ORCID: https://orcid.org/0000-0001-9415-0808)
- Shigeyuki Masaoka (ORCID: https://orcid.org/0000-0003-2678-2269)
- Takumi Matsuzaki
Institutions
- Osaka Gakuin University (JP)
- Tokyo University of Science (JP)
- Japan Science and Technology Agency (JP)
- Institute of Science Tokyo (JP)
- National Institute of Advanced Industrial Science and Technology (JP)
- The University of Tokyo (JP)
- The University of Osaka (JP)
Publication Details
- Journal
- Nature Communications
- Published
- 2025-03-05
- DOI
- https://doi.org/10.1038/s41467-025-57169-y
- Citations
- 8
- Primary Topic
- Electrocatalysts for Energy Conversion
- Type
- article
- Field-Weighted Citation Impact
- 2.91
Funders
- Japan Society for the Promotion of Science
- Core Research for Evolutional Science and Technology