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Shape-controlled synthesis of vanadium diselenide

机译:钒类钒的形状控制合成

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摘要

VSe2 is a typical layered semimetal TMDC, and was thought to be difficult to synthesize for many years. By changing the concentration of precursors and reaction steps in the hydrothermal method, here we successfully synthesize three different shapes of VSe2: nano-hydrangea (NH), nano-dandelion (ND) and hexagonal disk (HD). The as-prepared VSe2 HDs have a singlecrystalline structure compared with the poly-crystalline structure of NHs and NDs. The asprepared VSe2 in these three shapes also demonstrates apparent differences and intrinsic properties both in the nitrogen adsorption-desorption characterizations and UV-vis absorption analysis. Possible growth processes and mechanisms are put forward in detail to further inspire shape-design in other nanoscale materials.
机译:VSE2是典型的分层半型TMDC,被认为难以合成多年。 通过改变水热法中的前体和反应步骤的浓度,在这里,我们成功地合成了三种不同形状的VSE2:纳米绣球物(NH),纳米蒲公英(Nd)和六边形盘(HD)。 与NHS和NDS的多晶硅结构相比,如制备的VSE2 HDS具有单晶结构。 这三种形状中的asprepared的Vse2还在氮吸附 - 解吸表征和UV-Vis吸收分析中表明表观差异和内在性质。 详细提出了可能的生长过程和机制,以进一步激发其他纳米级材料的形状设计。

著录项

  • 来源
    《Nanotechnology》 |2017年第44期|共7页
  • 作者单位

    Southwest Univ Fac Mat &

    Energy Chongqing 400715 Peoples R China;

    Southwest Univ Fac Mat &

    Energy Chongqing 400715 Peoples R China;

    Southwest Univ Fac Mat &

    Energy Chongqing 400715 Peoples R China;

    Southwest Univ Fac Mat &

    Energy Chongqing 400715 Peoples R China;

    Southwest Univ Fac Mat &

    Energy Chongqing 400715 Peoples R China;

    Southwest Univ Fac Mat &

    Energy Chongqing 400715 Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 特种结构材料;
  • 关键词

    nanomaterials; TMDCs; VSe2; hydrothermal method;

    机译:纳米材料;TMDC;VSE2;水热法;

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