Fabrication of CuO–Pt core–shell nanohooks by in situ reconstructing the Pt-shells. (28th March 2018)

• Record Type: Journal Article
• Authors: Cao, Fan; Zheng, He; Zhao, Ligong; Huang, Rui; Jia, Shuangfeng; Liu, Huihui; Li, Lei; Wang, Zhao; Hu, Yongming; Gu, Haoshuang; Wang, Jianbo
• Is Part Of: Nanotechnology. Volume 29:Number 21(2018)
• Publication Date: 2018-03-28
• Subjects: one-dimensional core–shell structure -- mechanical deformation -- nanohooks -- copper oxide -- platinum; Nanotechnology -- Periodicals; Nanotechnology -- Periodicals; Nanotechnology; Publications périodiques; Nanotechnologies; Periodicals; 620.5
• DOI: 10.1088/1361-6528/aab4d2
• Languages: English
• ISSNs: 0957-4484

Abstract

Abstract: The design of various nanostructures with specific compositions and shapes is highly demanded due to the widespread use of micro/nano electro-mechanical systems. In this work, one-dimensional CuO–Pt core–shell nanowires (NWs) are acquired by depositing Pt nanoparticles onto CuO NWs and then mechanically-shaped into nanohooks. Subsequently, the hook-like shape is maintained by the Pt-shell which is reconstructed via Joule heat and re-solidified after cooling down, during which the elastic strain energy is stored in the CuO-core. The results provide a simple strategy to design nanostructures with various compositions and shapes, implying the potential applications in mechanical energy storage and shape memory nanodevices.