The DOI matches its Crossref record; 3 of the 3 references it cites were found in a registry or an index.
Long-Range Electron Transfer over Graphene-Based Catalyst for High-Performing Oxygen Reduction Reactions: Importance of Size, N-doping, and Metallic Impurities
Open accessAbstract
N-doped carbon materials are considered as next-generation oxygen reduction reaction (ORR) catalysts for fuel cells due to their prolonged stability and low cost. However, the underlying mechanism of these catalysts has been only insufficiently identified, preventing the rational design of high-performing catalysts. Here, we show that the first electron is transferred into O2 molecules at the outer Helmholtz plane (ET-OHP) over a long range. This is in sharp contrast to the conventional belief that O2 adsorption must precede the ET step and thus that the active site must possess as good an O2 binding character as that which occurs on metallic catalysts. Based on the ET-OHP mechanism, the location of the electrode potential dominantly characterizes the ORR activity. Accordingly, we demonstrate that the electrode potential can be elevated by reducing the graphene size and/or including metal impurities, thereby enhancing the ORR activity, which can be transferred into single-cell operations with superior stability.
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Citations
Cites
Origin of the Overpotential for Oxygen Reduction at a Fuel-Cell Cathode
Nørskov, J. K., Rossmeisl, J., Logadottir, A., Lindqvist, L., Kitchin, J. R., Bligaard, T., & Jónsson, H. (2004) · The Journal of Physical Chemistry B · doi:10.1021/jp047349j · Cited by 13,153
High-Performance Electrocatalysts for Oxygen Reduction Derived from Polyaniline, Iron, and Cobalt
Wu, G., More, K. L., Johnston, C. M., & Zelenay, P. (2011) · Science · doi:10.1126/science.1200832 · Cited by 3,984
Connecting Dopant Bond Type with Electronic Structure in N-Doped Graphene
Schiros, T., Nordlund, D., Pálová, L., Prezzi, D., Zhao, L., Kim, K. S., Wurstbauer, U., Gutiérrez, C., Delongchamp, D., Jaye, C., et al. (2012) · Nano Letters · doi:10.1021/nl301409h · Cited by 540
Cited by
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
Higgins, D., Zamani, P., Yu, A., & Chen, Z. (2016) · Energy & Environmental Science · doi:10.1039/c5ee02474a · Cited by 525
Kim, J., Kim, H., Lee, W.-J., Ruqia, B., Baik, H., Oh, H.-S., Paek, S.-M., Lim, H.-K., Choi, C. H., & Choi, S.-I. (2019) · Journal of the American Chemical Society · doi:10.1021/jacs.9b09229 · Cited by 129
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Metadata
- Authors
- Choi, C. H., Lim, H.-K., Chung, M. W., Park, J. C., Shin, H., Kim, H., & Woo, S. I.
- Venue
- Journal of the American Chemical Society
- Publisher
- American Chemical Society (ACS)
- Published
- 2014-06-16
- Volume
- 136
- Issue
- 25
- Pages
- 9070-9077
- ISSN
- 0002-7863 (ISSN-L)
- 1520-5126
- OpenAlex
- W2312545090
- Cited by
- 264
- References
- 3
- FWCI
- 9.17
- Type
- journal article
- Language
- en
- Open access
- hybrid
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- Choi, C. H., Lim, H.-K., Chung, M. W., Park, J. C., Shin, H., Kim, H., & Woo, S. I. (2014). Long-Range Electron Transfer over Graphene-Based Catalyst for High-Performing Oxygen Reduction Reactions: Importance of Size, N-doping, and Metallic Impurities. Journal of the American Chemical Society. https://doi.org/10.1021/ja5033474
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