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Journal of Materials Science: Materials in Electronics
Erschienen in: Journal of Materials Science: Materials in Electronics 10/2020

08.04.2020 | Review

Cobalt and nitrogen doped porous carbon nanofibers as an efficient electrocatalyst for high performance oxygen reduction reaction

verfasst von: Peng Liu, Yuechao Yao, Shengjiao Zhang, Lijia Liu, Shaozhong Zeng, Zhangjian Li, Shu Jiang, Qi Zhang, Xierong Zeng, Jizhao Zou

Erschienen in: Journal of Materials Science: Materials in Electronics | Ausgabe 10/2020

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Abstract

Efficient oxygen reduction reaction (ORR) electrocatalysts are critical for fuel cells. Herein, we report a facile synthetic method to prepare Co–N–C porous nanofibers (Co–N-CNFs) for high performance ORR electrocatalyst. Specifically, Polyacrylonitrile/Bimetallic (Cobalt and Zinc) ZIFs (PAN@BZIFs) hybrid is obtained by electrospinning and finally resulting in Co, N doped carbon nanofibers after pyrolysis. Electrochemical measurements demonstrate that it possesses remarkable ORR performance, superior stability and methanol tolerance under alkaline condition compared to commercial Pt/C catalyst. In this Co–N–C system, the ratio of Co/Zn in BZIFs and temperature of pyrolysis are confirmed as the important factors of specific surface area, graphitization and even ORR property. Thereby, through changing them, the best electrocatalytic activity was acquired with the ratio equals to 0.2 and pyrolyzing at 800 ℃. In addition, the excellent catalytic property can be attributed to the synergic coupling pores and hierarchical pore structure.
Vorheriger Artikel Structure and photo-induced effects in elemental chalcogens: a review on Raman scattering
Nächster Artikel Preparation and microwave absorption properties of petal CoO/CNFs composites

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Metadaten
Titel
Cobalt and nitrogen doped porous carbon nanofibers as an efficient electrocatalyst for high performance oxygen reduction reaction
verfasst von
Peng Liu
Yuechao Yao
Shengjiao Zhang
Lijia Liu
Shaozhong Zeng
Zhangjian Li
Shu Jiang
Qi Zhang
Xierong Zeng
Jizhao Zou
Publikationsdatum
08.04.2020
Verlag
Springer US
Erschienen in
Journal of Materials Science: Materials in Electronics / Ausgabe 10/2020
Print ISSN: 0957-4522
Elektronische ISSN: 1573-482X
DOI
https://doi.org/10.1007/s10854-020-03347-1

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