Electrospun Fe2C-loaded carbon nanofibers as efficient electrocatalysts for oxygen reduction reaction

Liu, Yangxiu, Li, Tuanfeng, Cao, Xueyuan, Liu, Jingjun, Zhang, Juan, Jia, Jin, Wang, Feng and Pan, Kai 2019, Electrospun Fe2C-loaded carbon nanofibers as efficient electrocatalysts for oxygen reduction reaction, Nanotechnology, vol. 30, no. 32, pp. 1-8, doi: 10.1088/1361-6528/ab1777.

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Title Electrospun Fe2C-loaded carbon nanofibers as efficient electrocatalysts for oxygen reduction reaction
Author(s) Liu, Yangxiu
Li, Tuanfeng
Cao, Xueyuan
Liu, Jingjun
Zhang, Juan
Jia, Jin
Wang, Feng
Pan, Kai
Journal name Nanotechnology
Volume number 30
Issue number 32
Article ID 325403
Start page 1
End page 8
Total pages 8
Publisher IOP Publishing
Place of publication Bristol, Eng.
Publication date 2019-04-09
ISSN 1361-6528
Keyword(s) electrospinning
nanofibers
inorganic
electrocatalyst
oxygen reduction reaction
Summary Carbon-based non-precious metal catalysts have been regarded as the most promising alternatives to the state-of-art Pt/C catalyst for the oxygen reduction reaction (ORR). However, there are still some unresolved challenges such as agglomeration of nanoparticles, complex preparation process and low production efficiency, which severely hamper the large-scale production of non-precious metal catalysts. Herein, a novel carbon-based non-precious metal catalyst, i.e. iron carbide nanoparticles embedded on carbon nanofibers (Fe2C/CNFs), prepared via the direct pyrolysis of carbon- and iron-containing Janus fibrous precursors obtained by electrospinning. The Fe2C/CNF catalyst shows uniform dispersion and narrow size distribution of Fe2C nanoparticles embedded on the CNFs. The obtained catalyst exhibits positive onset potential (0.87 V versus RHE), large kinetic current density (1.9 mA cm−2), and nearly follows the effective four-electron route, suggesting an outstanding electrocatalytic activity for the ORR in 0.1 M of KOH solution. Besides, its stability is better than that of the commercial Pt/C catalyst, due to the strong binding force between Fe2C particles and CNFs. This strategy opens new avenues for the design and efficient production of promising electrocatalysts for the ORR.
Language eng
DOI 10.1088/1361-6528/ab1777
Field of Research 090402 Catalytic Process Engineering
MD Multidisciplinary
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2019, IOP Publishing Ltd
Persistent URL http://hdl.handle.net/10536/DRO/DU:30121918

Document type: Journal Article
Collection: GTP Research
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