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Ordered mesoporous porphyrinic carbons with very high electrocatalytic activity for the oxygen reduction reaction
Open accessAbstract
The high cost of the platinum-based cathode catalysts for the oxygen reduction reaction (ORR) has impeded the widespread application of polymer electrolyte fuel cells. We report on a new family of non-precious metal catalysts based on ordered mesoporous porphyrinic carbons (M-OMPC; M = Fe, Co, or FeCo) with high surface areas and tunable pore structures, which were prepared by nanocasting mesoporous silica templates with metalloporphyrin precursors. The FeCo-OMPC catalyst exhibited an excellent ORR activity in an acidic medium, higher than other non-precious metal catalysts. It showed higher kinetic current at 0.9 V than Pt/C catalysts, as well as superior long-term durability and MeOH-tolerance. Density functional theory calculations in combination with extended X-ray absorption fine structure analysis revealed a weakening of the interaction between oxygen atom and FeCo-OMPC compared to Pt/C. This effect and high surface area of FeCo-OMPC appear responsible for its significantly high ORR activity.
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Cites
Electrocatalyst approaches and challenges for automotive fuel cells
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High-Performance Electrocatalysts for Oxygen Reduction Derived from Polyaniline, Iron, and Cobalt
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Alloys of platinum and early transition metals as oxygen reduction electrocatalysts
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Recent Advances in Electrocatalysts for Oxygen Reduction Reaction
Shao, M., Chang, Q., Dodelet, J.-P., & Chenitz, R. (2016) · Chemical Reviews · doi:10.1021/acs.chemrev.5b00462 · Cited by 3,903
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Electrochemical corrosion of a glassy carbon electrode
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Metadata
- Authors
- Cheon, J. Y., Kim, T., Choi, Y., Jeong, H. Y., Kim, M. G., Sa, Y. J., Kim, J., Lee, Z., Yang, T.-H., Kwon, K., Terasaki, O., Park, G.-G., Adzic, R. R., & Joo, S. H.
- Venue
- Scientific Reports
- Published
- 2013-09-23
- Volume
- 3
- Issue
- 1
- Pages
- 2715-2715
- ISSN
- 2045-2322 (ISSN-L)
- OpenAlex
- W1970750014
- Cited by
- 299
- References
- 6
- FWCI
- 15.99
- Type
- journal article
- Language
- en
- Open access
- gold
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- Cheon, J. Y., Kim, T., Choi, Y., Jeong, H. Y., Kim, M. G., Sa, Y. J., Kim, J., Lee, Z., Yang, T.-H., Kwon, K., Terasaki, O., Park, G.-G., Adzic, R. R., & Joo, S. H. (2013). Ordered mesoporous porphyrinic carbons with very high electrocatalytic activity for the oxygen reduction reaction. Scientific Reports. https://doi.org/10.1038/srep02715
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