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Graphene Supported Co-g-C3N4 as a Novel Metal–Macrocyclic Electrocatalyst for the Oxygen Reduction Reaction in Fuel Cells
Abstract
Graphitic carbon nitride (g-C3N4) polymer was doped with cobalt species and supported on a similar sp(2) structure graphene, to form a novel nitrogen-metal macrocyclic catalyst for the oxygen reduction reaction (ORR) in alkaline fuel cells. The structural characterizations confirmed the formation of Co-N bonds and the close electron coupling between Co-g-C3N4 and graphene sheets. The electrocatalytic measurements demonstrated Co-g-C3N4-catalyzed reduction of oxygen mainly in a four electron pathway. The improvement of ORR activity is closely related to the abundant accessible Co-Nx active sites and fast charge transfer at the interfaces of Co-g-C3N4/graphene. Also, Co-g-C3N4@graphene exhibited comparable ORR activity, better durability, and methanol tolerance ability in comparison to Pt/C, and bodes well for a promising non-noble cathode catalyst for the application of direct methanol fuel cells. The chemical doping strategy in this work would be helpful to improve other present catalysts for fuel cell applications.
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Yang, S., Feng, X., Wang, X., & Müllen, K. (2011) · Angewandte Chemie International Edition · doi:10.1002/anie.201100170 · Cited by 1,109
Cui, Y., Ding, Z., Liu, P., Antonietti, M., Fu, X., & Wang, X. (2012) · Phys. Chem. Chem. Phys. · doi:10.1039/c1cp22820j · Cited by 585
Cited by
Dong, G., Zhang, Y., Pan, Q., & Qiu, J. (2014) · Journal of Photochemistry and Photobiology C: Photochemistry Reviews · doi:10.1016/j.jphotochemrev.2014.04.002 · Cited by 1,085
Recent progress on graphene-based hybrid electrocatalysts
Xia, B., Yan, Y., Wang, X., & Lou, X. W. (. (2014) · Mater. Horiz. · doi:10.1039/c4mh00040d · Cited by 331
Metadata
- Authors
- Liu, Q., & Zhang, J.
- Venue
- Langmuir
- Publisher
- American Chemical Society (ACS)
- Published
- 2013-03-08
- Volume
- 29
- Issue
- 11
- Pages
- 3821-3828
- ISSN
- 0743-7463 (ISSN-L)
- 1520-5827
- OpenAlex
- W2328025663
- Cited by
- 418
- References
- 2
- FWCI
- 15.87
- Type
- journal article
- Language
- en
- Open access
- closed
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