Star-shaped ZIF-derived carbon-based electrocatalysts with FeNX active sites for enhanced oxygen reduction reaction in high-performance zinc-air batteries
A star-shaped Oxygen reduction reaction (ORR) catalyst, Fe-NSC-2, with the growth of carbon nanotubes is prepared. Nitrogen-rich iron phthalocyanine (FePc) is successfully doped into a zeolite imidazolate framework (ZIF-8) by the grinding and pyrolysis methods. Doping FePc into ZIF-8, utilizing its nitrogen ligands and macrocyclic structure, enhances metal dispersion and reinforces the metal-nitrogen (Fe-N X ) configuration. Additionally, this arrangement promotes the graphitization of the three-dimensional porous carbon following pyrolysis. Unexpectedly, the synthesized Fe-NSC-2 catalyst is found to exhibit excellent ORR electrocatalytic activity in alkaline solutions compared to Pt/C. The Zinc-air batteries (ZAB), in which Fe-NSC-2 is employed as the air cathode, is found to exhibit remarkable performance and stability. This provides an economically viable preparation strategy for exploring efficient catalysts for the ORR.
Authors
- Jincai Yang (ORCID: https://orcid.org/0000-0002-4446-5809)
- Chaoyang Liu (ORCID: https://orcid.org/0000-0002-8882-1182)
- Shang Wu (ORCID: https://orcid.org/0000-0001-9677-3910)
- Yuzhi Sun (ORCID: https://orcid.org/0009-0000-5334-9220)
- Xiang Xiao-ming
- Jiankun Li (ORCID: https://orcid.org/0000-0001-9866-3168)
- Shuo Tian (ORCID: https://orcid.org/0009-0004-4184-0249)
- Lihong Wang (ORCID: https://orcid.org/0000-0003-1414-1771)
- Jiali Shi (ORCID: https://orcid.org/0009-0002-6770-0231)
- Quanlu Yang (ORCID: https://orcid.org/0000-0003-0853-830X)
Institutions
- State Ethnic Affairs Commission (CN)
- Lanzhou University (CN)
Publication Details
- Journal
- Journal of Electroanalytical Chemistry
- Published
- 2025-02-04
- DOI
- https://doi.org/10.1016/j.jelechem.2025.118991
- Citations
- 5
- Primary Topic
- Electrocatalysts for Energy Conversion
- Type
- article
- Field-Weighted Citation Impact
- 1.82