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首页> 外文期刊>The journal of physical chemistry, C. Nanomaterials and interfaces >Facile Preparation and Electromagnetic Properties of Core-Shell Composite Spheres Composed of Aloe-like Nickel Flowers Assembled on Hollow Glass Spheres
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Facile Preparation and Electromagnetic Properties of Core-Shell Composite Spheres Composed of Aloe-like Nickel Flowers Assembled on Hollow Glass Spheres

机译：空心玻璃球上组装的类似芦荟镍花的核-壳复合球的制备及其电磁性能

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摘要

Aloe-like nickel flowers assembled on hollow glass spheres are successfully synthesized by a facile low-temperature hydrothermal reduction process,and thus novel 3D core-shell composite hollow spheres with hierarchical structures are fabricated.By properly tuning the process conditions and the component of the reaction solution,a series of composite spheres with gradient in morphologies of the shell layer can be prepared.On the basis of a series of contrast experiments,the probable formation mechanism of the core-shell hierarchical structures is proposed.The magnetic properties of the products are studied,and the results demonstrate that the composite spheres present ferromagnetic properties related to the special microstructures.Because of the conductive and ferromagnetic behavior of the nickel shells,the composite spheres possess morphology-dependent microwave absorption properties and may have some promising applications in low-density magnetic materials and microwave absorbers.This work provides an additional strategy to prepared core-shell composite spheres with tailored shell morphology and electromagnetic properties.
机译：通过简便的低温水热还原工艺成功合成了组装在空心玻璃球上的芦荟状镍花，从而制备出具有层次结构的新型3D核-壳复合空心球。通过适当地调节工艺条件和组成在反应溶液的作用下，可以制备出一系列壳层形貌呈梯度的复合球。在一系列对比实验的基础上，提出了核壳结构的可能形成机理。进行了研究，结果表明复合球具有与特殊的微观结构有关的铁磁性能。由于镍壳的导电和铁磁性能，复合球具有形态学相关的微波吸收性能，在低辐射下具有一定的应用前景。密度磁性材料和微波吸收剂这项工作为制备具有定制壳形和电磁特性的核-壳复合球提供了另一种策略。

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