Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P. R. China.
Adv Mater. 2010 Apr 6;22(13):1516-20. doi: 10.1002/adma.200903879.
Yolk/shell particles possess a unique structure that is composed of hollow shells that encapsulate other particles but with an interstitial space between them. These structures are different from core/shell particles in that the core particles are freely movable in the shell. Yolk/shell particles combine the properties of each component, and can find potential applications in catalysis, lithium ion batteries, and biosensors. In this Research News article, a soft-template-assisted method for the preparation of yolk/silica shell particles is presented. The demonstrated method is simple and general, and can produce hollow silica spheres incorporated with different particles independent of their diameters, geometry, and composition. Furthermore, yolk/mesoporous silica shell particles and multishelled particles are also prepared through optimization of the experimental conditions. Finally, potential applications of these particles are discussed.
蛋黄/壳粒子具有独特的结构，由空心壳组成，壳内包裹着其他粒子，但它们之间有空隙。这些结构与核/壳粒子不同，核粒子在壳内是自由移动的。蛋黄/壳粒子结合了各组成部分的特性，在催化剂、锂离子电池和生物传感器等领域有潜在的应用。在这篇研究新闻文章中，提出了一种软模板辅助法制备蛋黄/硅壳粒子。所展示的方法简单通用，可以制备不同粒径、几何形状和组成的空心硅球，且包裹着不同的粒子。此外，通过优化实验条件，还制备了蛋黄/介孔硅壳粒子和多壳粒子。最后，讨论了这些粒子的潜在应用。
