The DOI matches its Crossref record; 7 of the 7 references it cites were found in a registry or an index.
Stabilization and compressive strain effect of AuCu core on Pt shell for oxygen reduction reaction
Abstract
A great challenge in fuel cell development involves improving the durability and electrocatalytic activity of Pt-based electrocatalysts, while reducing the Pt loading. Herein, we report for the first time the synthesis of core–shell AuCu@Pt nanoparticles, which exhibit superior electrocatalytic activity and excellent stability towards oxygen reduction reaction (ORR). The Au component in the AuCu alloy core is crucial toward stabilizing the Pt shell during ORR. The extraordinary electrocatalytic activity of the AuCu@Pt nanoparticles for ORR is attributed to the compressive strain effect exerted by the AuCu alloy core on the Pt shell, which is induced by the slightly smaller lattice parameter of the AuCu core. In contrast, pure Au core with a larger lattice parameter than Pt would induce a tensile strain effect on the Pt shell, decreasing the electrocatalytic activity of Pt for ORR. This study illustrates that tuning the surface strain in Pt-based nanomaterials can be an effective way to manipulate the specific electrocatalytic activity. Moreover, the replacement of precious Pt core with the less expensive AuCu alloy can significantly reduce Pt loading and the associated catalyst cost, while achieving a superior electrocatalytic activity.
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Cites
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Improved Oxygen Reduction Activity on Pt 3 Ni(111) via Increased Surface Site Availability
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Computational high-throughput screening of electrocatalytic materials for hydrogen evolution
Greeley, J., Jaramillo, T. F., Bonde, J., Chorkendorff, I., & Nørskov, J. K. (2006) · Nature Materials · doi:10.1038/nmat1752 · Cited by 4,097
Trends in electrocatalysis on extended and nanoscale Pt-bimetallic alloy surfaces
Stamenkovic, V. R., Mun, B. S., Arenz, M., Mayrhofer, K. J. J., Lucas, C. A., Wang, G., Ross, P. N., & Markovic, N. M. (2007) · Nature Materials · doi:10.1038/nmat1840 · Cited by 3,252
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The nature of the active site in heterogeneous metal catalysis
Nørskov, J. K., Bligaard, T., Hvolbæk, B., Abild-Pedersen, F., Chorkendorff, I., & Christensen, C. H. (2008) · Chemical Society Reviews · doi:10.1039/b800260f · Cited by 885
Synthesis of Monodisperse Pt Nanocubes and Their Enhanced Catalysis for Oxygen Reduction
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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
Strain-controlled electrocatalysis on multimetallic nanomaterials
Luo, M., & Guo, S. (2017) · Nature Reviews Materials · doi:10.1038/natrevmats.2017.59 · Cited by 1,115
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
Nanointerface Chemistry: Lattice-Mismatch-Directed Synthesis and Application of Hybrid Nanocrystals
Liu, J., & Zhang, J. (2020) · Chemical Reviews · doi:10.1021/acs.chemrev.9b00443 · Cited by 423
Recent Advances of Structurally Ordered Intermetallic Nanoparticles for Electrocatalysis
Xiao, W., Lei, W., Gong, M., Xin, H. L., & Wang, D. (2018) · ACS Catalysis · doi:10.1021/acscatal.7b04420 · Cited by 356
Metadata
- Authors
- Yang, J., Chen, X., Yang, X., & Ying, J. Y.
- Venue
- Energy & Environmental Science
- Publisher
- Royal Society of Chemistry (RSC)
- Published
- 2012
- Volume
- 5
- Issue
- 10
- Pages
- 8976
- ISSN
- 1754-5692 (ISSN-L)
- 1754-5706
- OpenAlex
- W2035310334
- Cited by
- 171
- References
- 7
- FWCI
- 4.74
- Type
- journal article
- Language
- en
- Open access
- closed
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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