1. Electrospun N-doped carbon nanofibers decorated with Fe3C nanoparticles as highly active oxygen reduction electrocatalysts for rechargeable Zn–air batteries.
- Author
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Zou, Shanbao, Li, Jiajie, Wu, Xiaoqian, Lu, Yue, Liu, Xundao, and Dong, Dehua
- Subjects
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OXYGEN reduction , *CARBON nanofibers , *STORAGE batteries , *ELECTROCATALYSTS , *NANOPARTICLES , *POWER density , *PLATINUM nanoparticles - Abstract
[Display omitted] • Developed a new type of Fe 3 C-N-C nanofibers as oxygen reduction catalyst. • Dicyandiamide can increase specific surface area and generate active sites for ORR. • Synergistic effect between N-doped carbon and Fe 3 C can enhance the ORR performance. • Zn-air battery with Fe 3 C-N-C-0.5 delivers high power density and cycling stability. Slow oxygen reduction reaction (ORR) kinetic at the cathode side of Zn-air batteries seriously hinder its large-scale applications. Here, dicyandiamide (DCD) was used to synthesis high specific surface area ORR electrocatalysts by electrospun. The as-synthesized Fe 3 C nanoparticles decorated N-doped carbon nanofibers exhibit comparable performance to commercial Pt/C catalysts. Rechargeable Zn–air batteries with the catalyst exhibits higher power density and cycling stability compared to the commercial Pt/C catalyst. This work has demonstrated a new way to prepare highly efficient and stable ORR electrocatalysts for rechargeable Zn-air batteries. [ABSTRACT FROM AUTHOR]
- Published
- 2021
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