The DOI matches its Crossref record; 13 of the 13 references it cites were found in a registry or an index.
M3C (M: Fe, Co, Ni) Nanocrystals Encased in Graphene Nanoribbons: An Active and Stable Bifunctional Electrocatalyst for Oxygen Reduction and Hydrogen Evolution Reactions
Abstract
Transition metal carbide nanocrystalline M3C (M: Fe, Co, Ni) encapsulated in graphitic shells supported with vertically aligned graphene nanoribbons (VA-GNRs) are synthesized through a hot filament chemical vapor deposition (HF-CVD) method. The process is based on the direct reaction between iron group metals (Fe, Co, Ni) and carbon source, which are facilely get high purity carbide nanocrystals (NCs) and avoid any other impurity at relatively low temperature. The M3C-GNRs exhibit superior enhanced electrocatalystic activity for oxygen reduction reaction (ORR), including low Tafel slope (39, 41, and 45 mV dec(-1) for Fe3C-GNRs, Co3C-GNRs, and Ni3C-GNRs, respectively), positive onset potential (∼0.8 V), high electron transfer number (∼4), and long-term stability (no obvious drop after 20 000 s test). The M3C-GNRs catalyst also exhibits remarkable hydrogen evolution reaction (HER) activity with a large cathodic current density of 166.6, 79.6, and 116.4 mA cm(-2) at an overpotential of 200 mV, low onset overpotential of 32, 41, and 35 mV, small Tafel slope of 46, 57, and 54 mV dec(-1) for Fe3C-GNRs, Co3C-GNRs, and Ni3C-GNRs, respectively, as well as an excellent stability in acidic media.
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Cites
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Cited by
Recent Advances in Electrocatalytic Hydrogen Evolution Using Nanoparticles
Zhu, J., Hu, L., Zhao, P., Lee, L. Y. S., & Wong, K.-Y. (2020) · Chemical Reviews · doi:10.1021/acs.chemrev.9b00248 · Cited by 3,133
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Non‐Noble Metal‐based Carbon Composites in Hydrogen Evolution Reaction: Fundamentals to Applications
Wang, J., Xu, F., Jin, H., Chen, Y., & Wang, Y. (2017) · Advanced Materials · doi:10.1002/adma.201605838 · Cited by 1,769
Hydrogen Evolution and Oxidation: Mechanistic Studies and Material Advances
Tian, X., Zhao, P., & Sheng, W. (2019) · Advanced Materials · doi:10.1002/adma.201808066 · Cited by 751
Recent developments of carbon-based electrocatalysts for hydrogen evolution reaction
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Metadata
- Authors
- Fan, X., Peng, Z., Ye, R., Zhou, H., & Guo, X.
- Venue
- ACS Nano
- Publisher
- American Chemical Society (ACS)
- Published
- 2015-07-07
- Volume
- 9
- Issue
- 7
- Pages
- 7407-7418
- ISSN
- 1936-0851 (ISSN-L)
- 1936-086X
- OpenAlex
- W2429193030
- Cited by
- 476
- References
- 13
- FWCI
- 18.48
- Type
- journal article
- Language
- en
- Open access
- closed
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