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Cited by 177

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N-, O- and P-doped hollow carbons: Metal-free bifunctional electrocatalysts for hydrogen evolution and oxygen reduction reactions

Huang, Senchuan, Meng, Yuying, Cao, Yangfei, He, Shiman, Li, Xiaohui, Tong, Shengfu, Wu, Mingmei·2019·Applied Catalysis B: Environmental
DOI 10.1016/j.apcatb.2019.01.080
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Abstract

Abstract To realize clean and renewable energy conversion systems, such as fuel cells and water splitting devices, cost-effective and energy-efficient bifunctional metal-free electrocatalysts are highly needed. Herein, N-, O- and P-doped hollow carbons (NOPHCs) are successfully synthesized via pyrolysis of Co2P-containing polypyrrole (Co2P@PPY) precursors and removal of Co2P templates. The materials are proven to serve as efficient and stable metal-free bifunctional electrocatalysts toward hydrogen evolution reaction (HER) and oxygen reduction reaction (ORR) in basic media. Notably, NOPHC10-900, which is obtained using 0.10 g of Co2P as template and pyrolyzed at 900 °C, exhibits high electrocatalytic performance for HER with a small overpotential of 290 mV at −10 mA cm−2, a low Tafel slope of 102 mV dec-1, and a great long-term stability for 19 h. Moreover, it affords decent electrocatalytic performance for ORR, with positive onset potential, high electron-transfer number, good methanol crossover tolerance and outstanding durability. The excellent electrocatalytic performance is mainly due to the synergistic effect of the multi-heteroatoms dopants in it and the large density of active sites on the surface of the hollow carbons.

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Metadata

Authors
Huang, S., Meng, Y., Cao, Y., He, S., Li, X., Tong, S., & Wu, M.
Venue
Applied Catalysis B: Environmental
Publisher
Elsevier BV
Published
2019-07
Volume
248
Pages
239-248
ISSN
0926-3373 (ISSN-L)
DOI
10.1016/j.apcatb.2019.01.080
OpenAlex
W2913102941
Cited by
177
References
8
FWCI
5.72
Type
journal article
Language
en
Open access
closed
Licence
  • www.elsevier.com/tdm/userlicense/1.0/ (tdm)
  • www.elsevier.com/legal/tdmrep-license (tdm)
Funders
  • National Natural Science Foundation of China (NSFC) (21701199, 51672315)
  • Natural Science Foundation of Guangdong Province (2017A030310503)
  • Fundamental Research Funds for the Central Universities of China (17lgpy84)
  • Science and Technology Planning Project of Guangdong Province for Industrial Applications (2016B090930001)
  • Science and Technology Planning Project of Guangzhou City for International Cooperation Program (201704030020)

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CoChat. (2026). Citation check: N-, O- and P-doped hollow carbons: Metal-free bifunctional electrocatalysts for hydrogen evolution and oxygen reduction reactions. https://app.cochat.ai/papers/10.1016/j.apcatb.2019.01.080
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Huang, S., Meng, Y., Cao, Y., He, S., Li, X., Tong, S., & Wu, M. (2019). N-, O- and P-doped hollow carbons: Metal-free bifunctional electrocatalysts for hydrogen evolution and oxygen reduction reactions. Applied Catalysis B: Environmental. https://doi.org/10.1016/j.apcatb.2019.01.080

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