Microwave‐Assisted Synthesis of Core–Shell Nanoparticles—Insights into the Growth of Different Geometries,Particle & Particle Systems Characterization

当前位置： X-MOL 学术 › Part. Part. Syst. Charact. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Microwave‐Assisted Synthesis of Core–Shell Nanoparticles—Insights into the Growth of Different Geometries
Particle & Particle Systems Characterization ( IF 2.7 ) Pub Date : 2020-06-04 , DOI: 10.1002/ppsc.202000019
Aisha A. Womiloju _{1,

2} , Christiane Höppener _{3,

4} , Ulrich S. Schubert _{1,

2} , Stephanie Hoeppener _{1,

2}

Affiliation

Microwave irradiation is utilized for the rapid synthesis of gold–silver core–shell bimetallic nanoparticles (NPs) in a two‐step process. A strategy of establishing a bilayer organic barrier around the core using citrate and ascorbic acid as capping agents, providing a means to achieve a well‐defined boundary layer between the core and the shell material, is reported. These boundary layers are essential for synthesizing different core–shell morphologies and the approach results in tunable bimetallic NPs with defined core–shell structures, both for spherical as well as for triangular seed cores. In addition, theoretical calculations of the plasmonic characteristics based on the boundary element method of different classes of NPs are conducted. These investigations enable conclusions to be drawn on the influence of the core morphology on the tunability of their localized surface plasmon resonances.

中文翻译：

微波辅助合成核壳纳米粒子-洞察不同几何形状的生长

微波辐射可通过两步过程快速合成金-银-核-壳双金属纳米颗粒（NP）。报道了一种使用柠檬酸盐和抗坏血酸作为封端剂在核芯周围建立双层有机屏障的策略，该策略提供了一种在核芯和壳材料之间实现界限分明的边界层的方法。这些边界层对于合成不同的核-壳形态是必不可少的，并且该方法导致具有确定的核-壳结构的可调谐双金属NP，无论是球形的还是三角形的种子核。另外，基于不同种类NP的边界元方法进行了等离子体特性的理论计算。

更新日期：2020-06-04

点击分享查看原文

点击收藏

公开下载

阅读更多本刊最新论文本刊介绍/投稿指南11