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High-performance bifunctional oxygen electrocatalysts for zinc-air batteries over mesoporous Fe/Co-N-C nanofibers with embedding FeCo alloy nanoparticles
Abstract
Abstract Mesoporous Fe/Co-N-C nanofibers with embedding FeCo nanoparticles (denote as FeCo@MNC) have been prepared from electrospun Fe/Co-N coordination compounds with bicomponent polymers consisting of polyvinylpyrrolidone (PVP) and polyacrylonitrile (PAN). The as-fabricated hybrid nanofibers exhibited one-dimensional mesoporous morphology, a large BET surface area and uniformly distributed active sites (e.g FeCo alloy, Fe/Co-N). It elucidated that the co-existence of FeCo alloy and Fe/Co-N active sites could promote the catalytic activity of ORR and OER simultaneously. Essentially, the unique one-dimensional of nanofiber with observable porous morphology has indispensable contribution to charge transportation and exposure of active sites to O2 adsorption when assembled into a rechargeable zinc-air battery. As a result, FeCo@MNC exhibited a low discharge-charge voltage gap (e.g. 0.9 V, discharge-charge at 20 mA cm−2), higher power density (e.g. 115 mW cm−2, at 143 mA cm−2) and stability.
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Cited by
Chen, D., Zhu, J., Mu, X., Cheng, R., Li, W., Liu, S., Pu, Z., Lin, C., & Mu, S. (2020) · Applied Catalysis B: Environment and Energy · doi:10.1016/j.apcatb.2020.118729 · Cited by 387
Ahsan, M. A., Puente Santiago, A. R., Hong, Y., Zhang, N., Cano, M., Rodriguez-Castellon, E., Echegoyen, L., Sreenivasan, S. T., & Noveron, J. C. (2020) · Journal of the American Chemical Society · doi:10.1021/jacs.0c06960 · Cited by 373
Song, W., Li, M., Wang, C., & Lu, X. (2021) · Carbon Energy · doi:10.1002/cey2.85 · Cited by 221
Metadata
- Authors
- Li, C., Wu, M., & Liu, R.
- Venue
- Applied Catalysis B: Environmental
- Publisher
- Elsevier BV
- Published
- 2019-05
- Volume
- 244
- Pages
- 150-158
- ISSN
- 0926-3373 (ISSN-L)
- OpenAlex
- W2901166954
- Cited by
- 402
- References
- 0
- FWCI
- 13.40
- Type
- journal article
- Language
- en
- Open access
- closed
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- Li, C., Wu, M., & Liu, R. (2019). High-performance bifunctional oxygen electrocatalysts for zinc-air batteries over mesoporous Fe/Co-N-C nanofibers with embedding FeCo alloy nanoparticles. Applied Catalysis B: Environmental. https://doi.org/10.1016/j.apcatb.2018.11.039
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