The DOI matches its Crossref record; 29 of the 29 references it cites were found in a registry or an index.
High oxygen-reduction activity and durability of nitrogen-doped graphene
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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“However, once Pt loading is decreased, the number of available active sites is also decreased, thus leading to severe performance loss [238,239].”
From Recent Advances on PEM Fuel Cells: From Key Materials to Membrane Electrode Assembly (2023) · cites this paper as [239]
Citations
Cites
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Metal-Free Catalysts for Oxygen Reduction Reaction
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Self-citation
Metadata
- 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
- Publisher
- Royal Society of Chemistry (RSC)
- 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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