4H/fcc-Au@金属硫化物核壳纳米带的合成。

Synthesis of 4H/fcc-Au@Metal Sulfide Core-Shell Nanoribbons.

机构信息

School of Materials Science and Engineering, Nanyang Technological University , 50 Nanyang Avenue, Singapore 639798, Singapore.

Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications (NUPT) , 9 Wenyuan Road, Nanjing 210023, China.

出版信息

J Am Chem Soc. 2015 Sep 2;137(34):10910-3. doi: 10.1021/jacs.5b06405. Epub 2015 Aug 21.

DOI:10.1021/jacs.5b06405

PMID:26288315

Abstract

Although great advances on the synthesis of Au-semiconductor heteronanostructures have been achieved, the crystal structure of Au components is limited to the common face-centered cubic (fcc) phase. Herein, we report the synthesis of 4H/fcc-Au@Ag2S core-shell nanoribbon (NRB) heterostructures from the 4H/fcc Au@Ag NRBs via the sulfurization of Ag. Remarkably, the obtained 4H/fcc-Au@Ag2S NRBs can be further converted to a novel class of 4H/fcc-Au@metal sulfide core-shell NRB heterostructures, referred to as 4H/fcc-Au@MS (M = Cd, Pb or Zn), through the cation exchange. We believe that these novel 4H/fcc-Au@metal sulfide NRB heteronanostructures may show some promising applications in catalysis, surface enhanced Raman scattering, solar cells, photothermal therapy, etc.

摘要

尽管在 Au-半导体异质纳米结构的合成方面已经取得了巨大进展，但 Au 组分的晶体结构仅限于常见的面心立方（fcc）相。在此，我们通过 Ag 的硫化反应，从 4H/fcc-Au@Ag 纳米带报告了 4H/fcc-Au@Ag2S 核壳纳米带（NRB）异质结构的合成。值得注意的是，所得到的 4H/fcc-Au@Ag2S NRB 可以通过阳离子交换进一步转化为一类新型的 4H/fcc-Au@金属硫化物核壳 NRB 异质结构，称为 4H/fcc-Au@MS（M = Cd、Pb 或 Zn）。我们相信，这些新型的 4H/fcc-Au@金属硫化物 NRB 异质纳米结构可能在催化、表面增强拉曼散射、太阳能电池、光热治疗等方面显示出一些有前途的应用。