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Engineered Au Core@Prussian Blue Analogous Shell Nanoheterostructures: Their Magnetic and Optical Properties

机译:工程化AU核心@普鲁士蓝色类似壳纳米能结构:它们的磁性和光学性能

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摘要

We report a new approach for the synthesis of multifunctional Au core@Prussian Blue analogous (PBA) shell nanoheterostructures that involves PBA shell growth on the surface of cyanide-stabilized gold nanoparticles. It permits the assembly of Au@KNi~(II)[Fe~(II)(CN)_6] core@shell and Au@- KNi~(II)[Fe~(II)(CN)_6]@KNi~(II)[Cr~(III)(CN)_6] core@shell@shell heterostructures with well-defined and size-controlled gold cores and PBA shells. These heterostructures exhibit tunable size- and shape-dependent magnetic and optical properties: (i) the surface plasmon resonance band position and intensity mainly depend on the PBA shell thickness, and (ii) the magnetic properties (the transition temperature, the coercivity, and magnetic regime) depend in a complex manner on the thickness as well as the particular morphology of the magnetic shell.
机译:我们报告了一种新方法,用于合成多功能Au核心@普鲁士蓝色类似(PBA)壳纳米能结构,所述含有氰化物稳定金纳米颗粒表面上的PBA壳生长。 它允许组装Au @ Kni〜(II)[Fe〜(II)(CN)_6]核心@ shell和au @ - kni〜(ii)[fe〜(ii)(cn)_6] @kki〜( ii)[Cr〜(iii)(cn)_6]核心@ shell @ shell异质结构,具有明确定义和尺寸控制的金芯和PBA壳。 这些异质结构表现出可调尺寸和形状依赖性磁性和光学性质:(i)表面等离子体谐振带位置和强度主要取决于PBA壳厚度,(ii)磁性(过渡温度,矫顽力,和 磁性方案)以复杂的方式依赖于厚度以及磁性壳的特定形态。

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  • 来源
    《Chemistry: A European journal》 |2017年第31期|共14页
  • 作者单位

    ICGM (UMR5253) Univ. Montpellier CNRS ENSCM Universitó de Montpellier Site Triolet Place E. Bataillon 34095 Montpellier Cedex 5 (France);

    ICGM (UMR5253) Univ. Montpellier CNRS ENSCM Universitó de Montpellier Site Triolet Place E. Bataillon 34095 Montpellier Cedex 5 (France);

    ICGM (UMR5253) Univ. Montpellier CNRS ENSCM Universitó de Montpellier Site Triolet Place E. Bataillon 34095 Montpellier Cedex 5 (France);

    ICGM (UMR5253) Univ. Montpellier CNRS ENSCM Universitó de Montpellier Site Triolet Place E. Bataillon 34095 Montpellier Cedex 5 (France);

    ICGM (UMR5253) Univ. Montpellier CNRS ENSCM Universitó de Montpellier Site Triolet Place E. Bataillon 34095 Montpellier Cedex 5 (France);

    Fritz Haber Institute of the Max Planck Society Department of Inorganic Chemistry Faradayweg 4–6 14195 Berlin (Germany);

    Institute of Organometallic Chemistry of Russian Academy of Sciences Tropinina 49 GSO-445 630950 Nizhny Novgorod (Russia);

    ICGM (UMR5253) Univ. Montpellier CNRS ENSCM Universitó de Montpellier Site Triolet Place E. Bataillon 34095 Montpellier Cedex 5 (France);

    ICGM (UMR5253) Univ. Montpellier CNRS ENSCM Universitó de Montpellier Site Triolet Place E. Bataillon 34095 Montpellier Cedex 5 (France);

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 应用化学;
  • 关键词

    core–shell structures; magnetic properties; nanoheterostructures; Prussian blue; surface plasmon resonance;

    机译:核心壳结构;磁性;Manoheterosstructure;普鲁士蓝色;表面等离子体共鸣;

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