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Cited by 220

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Sub‐50 nm Iron–Nitrogen‐Doped Hollow Carbon Sphere‐Encapsulated Iron Carbide Nanoparticles as Efficient Oxygen Reduction Catalysts

Open access
Tan, Haibo, Li, Yunqi, Kim, Jeonghun, Takei, Toshiaki, Wang, Zhongli, Xu, Xingtao, Wang, Jie, Bando, Yoshio, Kang, Yong‐Mook, Tang, Jing, Yamauchi, Yusuke·2018·Advanced Science

Abstract

Sub‐50 nm iron–nitrogen‐doped hollow carbon sphere‐encapsulated iron carbide nanoparticles (Fe 3 C‐Fe,N/C) are synthesized by using a triblock copolymer of poly(styrene‐b‐2‐vinylpyridine‐b‐ethylene oxide) as a soft template. Their typical features, including a large surface area (879.5 m 2 g−1), small hollow size (≈16 nm), and nitrogen‐doped mesoporous carbon shell, and encapsulated Fe 3 C nanoparticles generate a highly active oxygen reduction reaction (ORR) performance. Fe 3 C‐Fe,N/C hollow spheres exhibit an ORR performance comparable to that of commercially available 20 wt% Pt/C in alkaline electrolyte, with a similar half‐wave potential, an electron transfer number close to 4, and lower H 2 O 2 yield of less than 5%. It also shows noticeable ORR catalytic activity under acidic conditions, with a high half‐wave potential of 0.714 V, which is only 59 mV lower than that of 20 wt% Pt/C. Moreover, Fe 3 C‐Fe,N/C has remarkable long‐term durability and tolerance to methanol poisoning, exceeding Pt/C regardless of the electrolyte.

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Metadata

Authors
Tan, H., Li, Y., Kim, J., Takei, T., Wang, Z., Xu, X., Wang, J., Bando, Y., Kang, Y., Tang, J., & Yamauchi, Y.
Venue
Advanced Science
Publisher
Wiley
Published
2018-05-12
Volume
5
Issue
7
Pages
1800120-1800120
ISSN
2198-3844 (ISSN-L)
OpenAlex
W2799850584
Cited by
220
References
6
FWCI
7.41
Type
journal article
Language
en
Open access
gold

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CoChat. (2026). Citation check: Sub‐50 nm Iron–Nitrogen‐Doped Hollow Carbon Sphere‐Encapsulated Iron Carbide Nanoparticles as Efficient Oxygen Reduction Catalysts. https://app.cochat.ai/papers/10.1002/advs.201800120
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Tan, H., Li, Y., Kim, J., Takei, T., Wang, Z., Xu, X., Wang, J., Bando, Y., Kang, Y., Tang, J., & Yamauchi, Y. (2018). Sub‐50 nm Iron–Nitrogen‐Doped Hollow Carbon Sphere‐Encapsulated Iron Carbide Nanoparticles as Efficient Oxygen Reduction Catalysts. Advanced Science. https://doi.org/10.1002/advs.201800120

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