Triangular Ag–Pd alloy nanoprisms : rational synthesis with high-efficiency for electrocatalytic oxygen reduction
We report the generation of triangular Ag–Pd alloy nanoprisms through a rationally designed synthetic strategy based on silver nanoprisms as sacrificial templates. The galvanic replacement between Ag nanoprisms and H2PdCl4 along with co-reduction of Ag+/Pd2+ is responsible for the formation of final...
| Main Authors: | , , , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
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2014
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| Online Access: | https://hdl.handle.net/10356/101605 http://hdl.handle.net/10220/24203 |
| _version_ | 1826110082101805056 |
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| author | Xu, Lin Tan, Chaoliang Luo, Zhimin Fan, Zhanxi Zhang, Xiao Li, Hai Zhang, Hua Xue, Can |
| author2 | School of Materials Science & Engineering |
| author_facet | School of Materials Science & Engineering Xu, Lin Tan, Chaoliang Luo, Zhimin Fan, Zhanxi Zhang, Xiao Li, Hai Zhang, Hua Xue, Can |
| author_sort | Xu, Lin |
| collection | NTU |
| description | We report the generation of triangular Ag–Pd alloy nanoprisms through a rationally designed synthetic strategy based on silver nanoprisms as sacrificial templates. The galvanic replacement between Ag nanoprisms and H2PdCl4 along with co-reduction of Ag+/Pd2+ is responsible for the formation of final prismatic Ag–Pd alloy nanostructures. Significantly, these Ag–Pd alloy nanoprisms exhibited superior electrocatalytic activity for the oxygen reduction reaction (ORR) as compared with the commercial Pd/C catalyst. Such a high catalytic activity is attributed to not only the alloyed Ag–Pd composition but also the dominant {111} facets of the triangular Ag–Pd nanoprisms. This work demonstrates the rational design of bimetallic alloy nanostructures with control of selective crystal facets that are critical to achieve high catalytic activity for fuel cell systems. |
| first_indexed | 2024-10-01T02:28:58Z |
| format | Journal Article |
| id | ntu-10356/101605 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T02:28:58Z |
| publishDate | 2014 |
| record_format | dspace |
| spelling | ntu-10356/1016052023-07-14T15:46:08Z Triangular Ag–Pd alloy nanoprisms : rational synthesis with high-efficiency for electrocatalytic oxygen reduction Xu, Lin Tan, Chaoliang Luo, Zhimin Fan, Zhanxi Zhang, Xiao Li, Hai Zhang, Hua Xue, Can School of Materials Science & Engineering DRNTU::Engineering::Materials::Nanostructured materials We report the generation of triangular Ag–Pd alloy nanoprisms through a rationally designed synthetic strategy based on silver nanoprisms as sacrificial templates. The galvanic replacement between Ag nanoprisms and H2PdCl4 along with co-reduction of Ag+/Pd2+ is responsible for the formation of final prismatic Ag–Pd alloy nanostructures. Significantly, these Ag–Pd alloy nanoprisms exhibited superior electrocatalytic activity for the oxygen reduction reaction (ORR) as compared with the commercial Pd/C catalyst. Such a high catalytic activity is attributed to not only the alloyed Ag–Pd composition but also the dominant {111} facets of the triangular Ag–Pd nanoprisms. This work demonstrates the rational design of bimetallic alloy nanostructures with control of selective crystal facets that are critical to achieve high catalytic activity for fuel cell systems. Accepted version 2014-11-10T04:25:27Z 2019-12-06T20:41:17Z 2014-11-10T04:25:27Z 2019-12-06T20:41:17Z 2014 2014 Journal Article Xu, L., Luo, Z., Fan, Z., Zhang, X., Tan, C., Li, H., et al. (2014). Triangular Ag–Pd alloy nanoprisms : rational synthesis with high-efficiency for electrocatalytic oxygen reduction. Nanoscale, 6(20), 11738-11743. https://hdl.handle.net/10356/101605 http://hdl.handle.net/10220/24203 10.1039/C4NR03600J en Nanoscale © 2014 The Royal Society of Chemistry. This is the author created version of a work that has been peer reviewed and accepted for publication in Nanoscale, published by Royal Society of Chemistry. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [Article DOI: http://dx.doi.org/10.1039/C4NR03600J]. 6 p. application/pdf |
| spellingShingle | DRNTU::Engineering::Materials::Nanostructured materials Xu, Lin Tan, Chaoliang Luo, Zhimin Fan, Zhanxi Zhang, Xiao Li, Hai Zhang, Hua Xue, Can Triangular Ag–Pd alloy nanoprisms : rational synthesis with high-efficiency for electrocatalytic oxygen reduction |
| title | Triangular Ag–Pd alloy nanoprisms : rational synthesis with high-efficiency for electrocatalytic oxygen reduction |
| title_full | Triangular Ag–Pd alloy nanoprisms : rational synthesis with high-efficiency for electrocatalytic oxygen reduction |
| title_fullStr | Triangular Ag–Pd alloy nanoprisms : rational synthesis with high-efficiency for electrocatalytic oxygen reduction |
| title_full_unstemmed | Triangular Ag–Pd alloy nanoprisms : rational synthesis with high-efficiency for electrocatalytic oxygen reduction |
| title_short | Triangular Ag–Pd alloy nanoprisms : rational synthesis with high-efficiency for electrocatalytic oxygen reduction |
| title_sort | triangular ag pd alloy nanoprisms rational synthesis with high efficiency for electrocatalytic oxygen reduction |
| topic | DRNTU::Engineering::Materials::Nanostructured materials |
| url | https://hdl.handle.net/10356/101605 http://hdl.handle.net/10220/24203 |
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