Unusual 4H-phase twinned noble metal nanokites

Wenxin Niu, Jiawei Liu, Jingtao Huang, Bo Chen, Qiyuan He, An-Liang Wang, Qipeng Lu, Ye Chen, Qinbai Yun, Jie Wang, Cuiling Li, Ying Huang, Zhuangchai Lai, Zhanxi Fan, Xue-Jun Wu and Hua Zhang ()
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Wenxin Niu: Nanyang Technological University
Jiawei Liu: Nanyang Technological University
Jingtao Huang: Nanyang Technological University
Bo Chen: Nanyang Technological University
Qiyuan He: Nanyang Technological University
An-Liang Wang: Nanyang Technological University
Qipeng Lu: Nanyang Technological University
Ye Chen: Nanyang Technological University
Qinbai Yun: Nanyang Technological University
Jie Wang: Nanyang Technological University
Cuiling Li: Nanyang Technological University
Ying Huang: Nanyang Technological University
Zhuangchai Lai: Nanyang Technological University
Zhanxi Fan: Nanyang Technological University
Xue-Jun Wu: Nanyang Technological University
Hua Zhang: Nanyang Technological University

Nature Communications, 2019, vol. 10, issue 1, 1-7

Abstract: Abstract Twinning commonly exists in noble metals. In recent years, it has attracted increasing interest as it is powerful to tune the physicochemical properties of metallic nanomaterials. To the best of our knowledge, all the reported twinned noble metal structures exclusively possess the close-packed {111} twinning plane. Here, we report the discovery of non-close-packed twinning planes in our synthesized Au nanokites. By using the bent Au nanoribbons with unique 4H/face-centered cubic)/4H crystal-phase heterostructures as templates, Au nanokites with unusual twinned 4H-phase structures have been synthesized, which possess the non-close-packed {10 $$\bar 1$$ 1 ¯ 2} or {10 $$\bar 1$$ 1 ¯ 6} twinning plane. By using the Au nanokites as templates, twinned 4H-phase Au@Ag and Au@PdAg core-shell nanostructures have been synthesized. The discovery of 4H-phase twinned noble metal nanostructures may pave a way for the preparation of metal nanomaterials with unique twinned structures for various promising applications.

Date: 2019
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DOI: 10.1038/s41467-019-10764-2

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