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Stabilization of 4H hexagonal phase in gold nanoribbons

Author

Listed:
  • Zhanxi Fan

    (School of Materials Science and Engineering, Nanyang Technological University)

  • Michel Bosman

    (Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research), 3 Research Link)

  • Xiao Huang

    (School of Materials Science and Engineering, Nanyang Technological University
    Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech))

  • Ding Huang

    (Institute of High Performance Computing, A*STAR (Agency for Science, Technology and Research))

  • Yi Yu

    (University of California)

  • Khuong P. Ong

    (Institute of High Performance Computing, A*STAR (Agency for Science, Technology and Research))

  • Yuriy A. Akimov

    (Institute of High Performance Computing, A*STAR (Agency for Science, Technology and Research))

  • Lin Wu

    (Institute of High Performance Computing, A*STAR (Agency for Science, Technology and Research))

  • Bing Li

    (Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research), 3 Research Link)

  • Jumiati Wu

    (School of Materials Science and Engineering, Nanyang Technological University)

  • Ying Huang

    (School of Materials Science and Engineering, Nanyang Technological University)

  • Qing Liu

    (Nanyang Technological University, Temasek Laboratories at NTU)

  • Ching Eng Png

    (Institute of High Performance Computing, A*STAR (Agency for Science, Technology and Research))

  • Chee Lip Gan

    (School of Materials Science and Engineering, Nanyang Technological University)

  • Peidong Yang

    (University of California)

  • Hua Zhang

    (School of Materials Science and Engineering, Nanyang Technological University)

Abstract

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.

Suggested Citation

  • Zhanxi Fan & Michel Bosman & Xiao Huang & Ding Huang & Yi Yu & Khuong P. Ong & Yuriy A. Akimov & Lin Wu & Bing Li & Jumiati Wu & Ying Huang & Qing Liu & Ching Eng Png & Chee Lip Gan & Peidong Yang & H, 2015. "Stabilization of 4H hexagonal phase in gold nanoribbons," Nature Communications, Nature, vol. 6(1), pages 1-8, November.
    • Handle: RePEc:nat:natcom:v:6:y:2015:i:1:d:10.1038_ncomms8684
    DOI: 10.1038/ncomms8684
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    Cited by:

    1. Kai Liu & Hao Yang & Yilan Jiang & Zhaojun Liu & Shumeng Zhang & Zhixue Zhang & Zhun Qiao & Yiming Lu & Tao Cheng & Osamu Terasaki & Qing Zhang & Chuanbo Gao, 2023. "Coherent hexagonal platinum skin on nickel nanocrystals for enhanced hydrogen evolution activity," Nature Communications, Nature, vol. 14(1), pages 1-12, December.

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