The DOI matches its Crossref record; 9 of the 9 references it cites were found in a registry or an index.
Electrocatalytic Reduction of Oxygen by FePt Alloy Nanoparticles
Abstract
Fe x Pt 100- x nanoparticles of different compositions ( x = 63, 58, 54, 42, 15, and 0) were prepared and loaded onto a glassy carbon (GC) electrode where their catalytic activities in the electroreduction of oxygen were examined and compared. Cyclic and rotating disk voltammetric studies of the resulting Fe x Pt 100- x /GC electrodes showed that the catalytic activity for oxygen reduction exhibited a peak-shape dependence on the particle composition ( x ). Among the series of nanocatalysts under study, Fe 42 Pt 58 particles showed the maximum activity for O 2 reduction in terms of the reduction overpotential and current density. This was accounted for by the effects of the Fe content on the electronic structures of the Pt active sites and the resulting Pt−O interactions. Kinetic analyses showed that direct four-electron reduction of adsorbed oxygen occurred on these catalyst surfaces. Additionally, the rate constant of O 2 reduction increased with increasing Pt content in the alloy particles; yet, at x ≤ 42, the rate constant exhibited only a very small increment. These studies suggest that the Fe 42 Pt 58 particles might represent an optimal composition for oxygen reduction among the series of nanoparticle catalysts under the present study.
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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
Trends in electrocatalysis on extended and nanoscale Pt-bimetallic alloy surfaces
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Self-citationMethanol oxidation and direct methanol fuel cells: a selective review
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Stamenkovic, V. R., Mun, B. S., Mayrhofer, K. J. J., Ross, P. N., & Markovic, N. M. (2006) · Journal of the American Chemical Society · doi:10.1021/ja0600476 · Cited by 974
Oxygen Reduction on Carbon-Supported Pt−Ni and Pt−Co Alloy Catalysts
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Importance of Interatomic Spacing in Catalytic Reduction of Oxygen in Phosphoric Acid
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Cited by
Tuning Nanoparticle Catalysis for the Oxygen Reduction Reaction
Guo, S., Zhang, S., & Sun, S. (2013) · Angewandte Chemie International Edition · doi:10.1002/anie.201207186 · Cited by 994
Self-citationStructurally Ordered FePt Nanoparticles and Their Enhanced Catalysis for Oxygen Reduction Reaction
Kim, J., Lee, Y., & Sun, S. (2010) · Journal of the American Chemical Society · doi:10.1021/ja1009629 · Cited by 523
Self-citationLi, D., Wang, C., Tripkovic, D., Sun, S., Markovic, N. M., & Stamenkovic, V. R. (2012) · ACS Catalysis · doi:10.1021/cs300219j · Cited by 508
Self-citationAdvanced Platinum Alloy Electrocatalysts for the Oxygen Reduction Reaction
Wang, C., Markovic, N. M., & Stamenkovic, V. R. (2012) · ACS Catalysis · doi:10.1021/cs3000792 · Cited by 440
Slanac, D. A., Hardin, W. G., Johnston, K. P., & Stevenson, K. J. (2012) · Journal of the American Chemical Society · doi:10.1021/ja303580b · Cited by 295
Metadata
- Authors
- Chen, W., Kim, J., Sun, S., & Chen, S.
- Venue
- The Journal of Physical Chemistry C
- Publisher
- American Chemical Society (ACS)
- Published
- 2008-02-20
- Volume
- 112
- Issue
- 10
- Pages
- 3891-3898
- ISSN
- 1932-7447 (ISSN-L)
- 1932-7455
- OpenAlex
- W2058801581
- Cited by
- 218
- References
- 9
- FWCI
- 10.00
- Type
- journal article
- Language
- en
- Open access
- closed
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