The DOI matches its Crossref record; 13 of the 13 references it cites were found in a registry or an index.
Structure of Dealloyed PtCu3 Thin Films and Catalytic Activity for Oxygen Reduction
Abstract
The detailed structure and composition (surface and bulk) as well as catalytic activity for oxygen reduction of electrochemically dealloyed PtCu 3 thin films have been investigated. Synchrotron-based anomalous X-ray diffraction (AXRD) reveals that a Pt enriched surface region (∼1.0 nm thick) and a Cu depleted interior (atomic ratio different from that of PtCu 3 ) are formed in the dealloyed film, and we directly observe a compressive lattice strain in the Pt surface region. The dealloyed PtCu 3 thin films show a ∼2.4 fold increase in the specific oxygen reduction activity over pure Pt thin films as measured by a rotating disk electrode (RDE). Our results show that the enhanced catalytic activity of the dealloyed Pt−Cu film is primarily due to the compressive strain in the surface layer (ligand effect is very weak). We compare our results on thin films to related results on nanoparticles. These studies provide a better understanding of the structure − composition and structure − activity relationships in Pt-skeleton structures prepared by dealloying base-metal-rich alloys.
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Improved Oxygen Reduction Activity on Pt 3 Ni(111) via Increased Surface Site Availability
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Alloys of platinum and early transition metals as oxygen reduction electrocatalysts
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Oxygen Reduction on Carbon-Supported Pt−Ni and Pt−Co Alloy Catalysts
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Jiao, Y., Zheng, Y., Jaroniec, M., & Qiao, S. Z. (2015) · Chemical Society Reviews · doi:10.1039/c4cs00470a · Cited by 5,388
Recent advances in catalysts for direct methanol fuel cells
Zhao, X., Yin, M., Ma, L., Liang, L., Liu, C., Liao, J., Lu, T., & Xing, W. (2011) · Energy & Environmental Science · doi:10.1039/c1ee01307f · Cited by 939
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Metadata
- Authors
- Yang, R., Leisch, J., Strasser, P., & Toney, M. F.
- Venue
- Chemistry of Materials
- Publisher
- American Chemical Society (ACS)
- Published
- 2010-07-27
- Volume
- 22
- Issue
- 16
- Pages
- 4712-4720
- ISSN
- 0897-4756 (ISSN-L)
- 1520-5002
- OpenAlex
- W2020077059
- Cited by
- 180
- References
- 13
- FWCI
- 10.08
- Type
- journal article
- Language
- en
- Open access
- closed
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