Issue 23, 2018

Ternary doped porous carbon nanofibers with excellent ORR and OER performance for zinc–air batteries

Abstract

The oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) play an important role in the air electrode reactions of rechargeable Zn–air batteries. However, noble metal-based catalysts for the ORR and OER always suffer from high cost and poor stability. Carbon-based materials with many advantages such as low cost, good conductivity, a large specific surface area and considerable durability are considered as promising alternatives to noble metal-based catalysts. In particular, the doping of heteroatoms into carbon has been proven to be an effective method to improve catalytic performance. Herein, we synthesized N, F, P ternary doped macro-porous carbon fibers (NFPC) as a bifunctional catalyst for primary and rechargeable Zn–air batteries for the first time via an electrospinning method with subsequent thermal annealing. The uniform distribution of heteroatoms in the macroporous carbon fibers induced a greatly improved catalytic efficiency towards the ORR and OER, showing exceptional properties in Zn–air systems.

Graphical abstract: Ternary doped porous carbon nanofibers with excellent ORR and OER performance for zinc–air batteries

Supplementary files

Article information

Article type
Paper
Submitted
15 מרץ 2018
Accepted
02 מאי 2018
First published
03 מאי 2018

J. Mater. Chem. A, 2018,6, 10918-10925

Ternary doped porous carbon nanofibers with excellent ORR and OER performance for zinc–air batteries

M. Wu, Y. Wang, Z. Wei, L. Wang, M. Zhuo, J. Zhang, X. Han and J. Ma, J. Mater. Chem. A, 2018, 6, 10918 DOI: 10.1039/C8TA02416B

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