Molecules (May 2024)

Fe-Co Co-Doped 1D@2D Carbon-Based Composite as an Efficient Catalyst for Zn–Air Batteries

  • Ziwei Deng,
  • Wei Liu,
  • Junyuan Zhang,
  • Shuli Bai,
  • Changyu Liu,
  • Mengchen Zhang,
  • Chao Peng,
  • Xiaolong Xu,
  • Jianbo Jia

DOI
https://doi.org/10.3390/molecules29102349
Journal volume & issue
Vol. 29, no. 10
p. 2349

Abstract

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A Fe-Co dual-metal co-doped N containing the carbon composite (FeCo-HNC) was prepared by adjusting the ratio of iron to cobalt as well as the pyrolysis temperature with the assistance of functionalized silica template. Fe1Co-HNC, which was formed with 1D carbon nanotubes and 2D carbon nanosheets including a rich mesoporous structure, exhibited outstanding oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) catalytic activities. The ORR half-wave potential is 0.86 V (vs. reversible hydrogen electrode, RHE), and the OER overpotential is 0.76 V at 10 mA cm−2 with the Fe1Co-HNC catalyst. It also displayed superior performance in zinc–air batteries. This method provides a promising strategy for the fabrication of efficient transition metal-based carbon catalysts.

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