Cited by 1,219Electrocatalysts for Energy ConversionCatalytic Processes in Materials ScienceFuel Cells and Related Materials

High oxygen-reduction activity and durability of nitrogen-doped graphene

Geng, Dongsheng, Chen, Ying, Chen, Yougui, Li, Yongliang, Li, Ruying, Sun, Xueliang, Ye, Siyu, Knights, Shanna·2011·Energy & Environmental Science

Abstract

Nitrogen-doped graphene as a metal-free catalyst for oxygen reduction was synthesized by heat-treatment of graphene using ammonia. It was found that the optimum temperature was 900 °C. The resulting catalyst had a very high oxygen reduction reaction (ORR) activity through a four-electron transfer process in oxygen-saturated 0.1 M KOH. Most importantly, the electrocatalytic activity and durability of this material are comparable or better than the commercial Pt/C (loading: 4.85 µgPt cm−2). XPS characterization of these catalysts was tested to identify the active N species for ORR.

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Crossref · 10.1039/c0ee00326c

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29 of 29 references verified0 citation errors · 0 not checkable

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  • Once Pt loading is decreased, the number of available active sites is also decreased, thus leading to severe performance loss.

    “However, once Pt loading is decreased, the number of available active sites is also decreased, thus leading to severe performance loss [238,239].”

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Authors
Geng, D., Chen, Y., Chen, Y., Li, Y., Li, R., Sun, X., Ye, S., & Knights, S.
Affiliations
  • Western University (CA)
  • Ballard Power Systems (Canada) (CA)
Corresponding author
Sun, Xueliang
Venue
Energy & Environmental Science
Published
2011
Volume
4
Issue
3
Pages
760
ISSN
  • 1754-5692 (ISSN-L)
  • 1754-5706
OpenAlex
W1999469559
Cited by
1,219
References
29
Citations by year
2026: 10 · 2025: 23 · 2024: 34 · 2023: 26 · 2022: 47 · 2021: 53 · 2020: 71 · 2019: 121 · 2018: 132 · 2017: 133 · 2016: 132 · 2015: 147 · 2014: 122 · 2013: 94 · 2012: 60
FWCI
38.58
Type
journal article
Language
en
Open access
closed
Locations
Energy & Environmental Science (publishedVersion)
Topics
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Electrocatalysts for Energy Conversion
  • Physical Sciences › Materials Science › Materials Chemistry › Catalytic Processes in Materials Science
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Fuel Cells and Related Materials
Keywords
nitrogen-doped graphene, oxygen reduction reaction, metal-free electrocatalysts, ammonia treatment, heat treatment temperature, four-electron pathway, Pt/C comparison, alkaline electrolyte

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