dc.contributor.author | Zhao, Yuan-Yun | |
dc.contributor.author | Qian, Feng | |
dc.contributor.author | Zhao, Chengliang | |
dc.contributor.author | Xie, Chunxiao | |
dc.contributor.author | Wang, Jianguo | |
dc.contributor.author | Chang, Chuntao | |
dc.contributor.author | Li, Yanjun | |
dc.contributor.author | Zhang, Lai-Chang | |
dc.date.accessioned | 2022-03-08T10:22:38Z | |
dc.date.available | 2022-03-08T10:22:38Z | |
dc.date.created | 2021-06-23T14:54:00Z | |
dc.date.issued | 2021 | |
dc.identifier.citation | Journal of Materials Science & Technology. 2021, 70 205-213. | en_US |
dc.identifier.issn | 1005-0302 | |
dc.identifier.uri | https://hdl.handle.net/11250/2983734 | |
dc.description.abstract | Nanoporous metals prepared by dealloying have attracted increasing attention due to their interesting size-dependent physical, chemical, and biological properties. However, facile fabrication of metallic ultrathin freestanding nanoporous films (UF-NPFs) by dealloying is still challenging. Herein, we report a novel strategy of facile preparation of flexible Cu, Cu3Ag, and CuAg UF-NPFs by dealloying thick Mg-Cu(Ag)-Gd metallic glass ribbons. During dealloying, the local reaction latent heat-induced glass transition of the precursor ribbons leads to the formation of a solid/liquid interface between the initially dealloyed nanoporous layer and the underlying supercooled liquid layer. Due to the bulging effect of in situ generated H2 on the solid/liquid interface, Cu, Cu3Ag, and CuAg UF-NPFs with thicknesses of ~200 nm can self-peel off from the outer surface of the dealloying ribbons. Moreover, it was found that the surface-enhanced Raman scattering (SERS) detection limit of Rhodamine 6G (R6G) on the Cu and CuAg UF-NPF substrates are 10-6 M and 10-11 M, respectively, which are lower than most of the Cu and Cu-Ag substrates prepared by other methods. This work presents a reliable simple strategy to synthesize a variety of cost effective and flexible metallic UF-NPFs for functional applications. | en_US |
dc.language.iso | eng | en_US |
dc.publisher | Elsevier | en_US |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Internasjonal | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/deed.no | * |
dc.title | Facile fabrication of ultrathin freestanding nanoporous Cu and Cu-Ag films with high SERS sensitivity by dealloying Mg-Cu(Ag)-Gd metallic glasses | en_US |
dc.type | Peer reviewed | en_US |
dc.type | Journal article | en_US |
dc.description.version | acceptedVersion | en_US |
dc.rights.holder | This is the authors' accepted manuscript to an article published by Elsevier. Locked until 11.10.2022 due to copyright restrictions. | en_US |
dc.source.pagenumber | 205-213 | en_US |
dc.source.volume | 70 | en_US |
dc.source.journal | Journal of Materials Science & Technology | en_US |
dc.identifier.doi | 10.1016/j.jmst.2020.08.049 | |
dc.identifier.cristin | 1917983 | |
dc.relation.project | Norges forskningsråd: 309584 | en_US |
cristin.ispublished | true | |
cristin.fulltext | postprint | |
cristin.qualitycode | 1 | |