Stabilization of 4H hexagonal phase in gold nanoribbons
Gold, silver, platinum and palladium typically crystallize with the face-centred cubic structure. Here we report the high-yield solution synthesis of gold nanoribbons in the 4H hexagonal polytype, a previously unreported metastable phase of gold. These gold nanoribbons undergo a phase transition fro...
| Main Authors: | , , , , , , , , , , , , , , , |
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| Format: | Journal Article |
| Language: | English |
| Published: |
2018
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| Online Access: | https://hdl.handle.net/10356/89243 http://hdl.handle.net/10220/46206 |
| _version_ | 1826127454833475584 |
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| author | Fan, Zhanxi Bosman, Michel Huang, Xiao Huang, Ding Yu, Yi Ong, Khuong P. Akimov, Yuriy A. Wu, Lin Li, Bing Wu, Jumiati Huang, Ying Liu, Qing Png, Ching Eng Gan, Chee Lip Yang, Peidong Zhang, Hua |
| author2 | School of Materials Science & Engineering |
| author_facet | School of Materials Science & Engineering Fan, Zhanxi Bosman, Michel Huang, Xiao Huang, Ding Yu, Yi Ong, Khuong P. Akimov, Yuriy A. Wu, Lin Li, Bing Wu, Jumiati Huang, Ying Liu, Qing Png, Ching Eng Gan, Chee Lip Yang, Peidong Zhang, Hua |
| author_sort | Fan, Zhanxi |
| collection | NTU |
| description | Gold, silver, platinum and palladium typically crystallize with the face-centred cubic structure. Here we report the high-yield solution synthesis of gold nanoribbons in the 4H hexagonal polytype, a previously unreported metastable phase of gold. These gold nanoribbons undergo a phase transition from the original 4H hexagonal to face-centred cubic structure on ligand exchange under ambient conditions. Using monochromated electron energy-loss spectroscopy, the strong infrared plasmon absorption of single 4H gold nanoribbons is observed. Furthermore, the 4H hexagonal phases of silver, palladium and platinum can be readily stabilized through direct epitaxial growth of these metals on the 4H gold nanoribbon surface. Our findings may open up new strategies for the crystal phase-controlled synthesis of advanced noble metal nanomaterials. |
| first_indexed | 2024-10-01T07:08:50Z |
| format | Journal Article |
| id | ntu-10356/89243 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T07:08:50Z |
| publishDate | 2018 |
| record_format | dspace |
| spelling | ntu-10356/892432023-07-14T15:46:50Z Stabilization of 4H hexagonal phase in gold nanoribbons Fan, Zhanxi Bosman, Michel Huang, Xiao Huang, Ding Yu, Yi Ong, Khuong P. Akimov, Yuriy A. Wu, Lin Li, Bing Wu, Jumiati Huang, Ying Liu, Qing Png, Ching Eng Gan, Chee Lip Yang, Peidong Zhang, Hua School of Materials Science & Engineering Temasek Laboratories Inorganic Chemistry Nanoscale Materials DRNTU::Engineering::Materials Gold, silver, platinum and palladium typically crystallize with the face-centred cubic structure. Here we report the high-yield solution synthesis of gold nanoribbons in the 4H hexagonal polytype, a previously unreported metastable phase of gold. These gold nanoribbons undergo a phase transition from the original 4H hexagonal to face-centred cubic structure on ligand exchange under ambient conditions. Using monochromated electron energy-loss spectroscopy, the strong infrared plasmon absorption of single 4H gold nanoribbons is observed. Furthermore, the 4H hexagonal phases of silver, palladium and platinum can be readily stabilized through direct epitaxial growth of these metals on the 4H gold nanoribbon surface. Our findings may open up new strategies for the crystal phase-controlled synthesis of advanced noble metal nanomaterials. NRF (Natl Research Foundation, S’pore) MOE (Min. of Education, S’pore) Published version 2018-10-03T06:20:34Z 2019-12-06T17:21:01Z 2018-10-03T06:20:34Z 2019-12-06T17:21:01Z 2015 Journal Article Fan, Z., Bosman, M., Huang, X., Huang, D., Yu, Y., Ong, K. P., . . . Zhang, H. (2015). Stabilization of 4H hexagonal phase in gold nanoribbons. Nature Communications, 6, 7684-. doi:10.1038/ncomms8684 https://hdl.handle.net/10356/89243 http://hdl.handle.net/10220/46206 10.1038/ncomms8684 26216712 en Nature Communications © 2015 Macmillan Publishers Limited. This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ 8 p. application/pdf |
| spellingShingle | Inorganic Chemistry Nanoscale Materials DRNTU::Engineering::Materials Fan, Zhanxi Bosman, Michel Huang, Xiao Huang, Ding Yu, Yi Ong, Khuong P. Akimov, Yuriy A. Wu, Lin Li, Bing Wu, Jumiati Huang, Ying Liu, Qing Png, Ching Eng Gan, Chee Lip Yang, Peidong Zhang, Hua Stabilization of 4H hexagonal phase in gold nanoribbons |
| title | Stabilization of 4H hexagonal phase in gold nanoribbons |
| title_full | Stabilization of 4H hexagonal phase in gold nanoribbons |
| title_fullStr | Stabilization of 4H hexagonal phase in gold nanoribbons |
| title_full_unstemmed | Stabilization of 4H hexagonal phase in gold nanoribbons |
| title_short | Stabilization of 4H hexagonal phase in gold nanoribbons |
| title_sort | stabilization of 4h hexagonal phase in gold nanoribbons |
| topic | Inorganic Chemistry Nanoscale Materials DRNTU::Engineering::Materials |
| url | https://hdl.handle.net/10356/89243 http://hdl.handle.net/10220/46206 |
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