Hierarchical Fe_3O_4@TiO_2 yolk-shell microspheres with enhanced microwave-absorption properties

Liu J.; Xu J.; Che R.; Chen H.; Liu M.; Liu Z.

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Hierarchical Fe_3O_4@TiO_2 yolk-shell microspheres with enhanced microwave-absorption properties

机译：具有增强的微波吸收特性的分层Fe_3O_4 @ TiO_2卵黄壳微球

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A facile and efficient strategy for the synthesis of hierarchical yolk-shell microspheres with magnetic Fe_3O_4 cores and dielectric TiO_2 shells has been developed. Various Fe _3O_4@TiO_2 yolk-shell microspheres with different core sizes, interstitial void volumes, and shell thicknesses have been successfully synthesized by controlling the synthetic parameters. Moreover, the microwave absorption properties of these yolk-shell microspheres, such as the complex permittivity and permeability, were investigated. The electromagnetic data demonstrate that the as-synthesized Fe_3O_4@TiO _2 yolk-shell microspheres exhibit significantly enhanced microwave absorption properties compared with pure Fe_3O_4 and our previously reported Fe_3O_4@TiO_2 core-shell microspheres, which may result from the unique yolk-shell structure with a large surface area and high porosity, as well as synergistic effects between the functional Fe_3O_4 cores and TiO_2 shells.

机译：已经开发了一种简便有效的策略，用于合成具有磁性Fe_3O_4核和介电TiO_2壳的分层蛋黄壳微球。通过控制合成参数，成功地合成了具有不同核尺寸，间隙空隙体积和壳厚度的各种Fe _3O_4 @ TiO_2卵黄壳微球。此外，研究了这些卵黄壳微球的微波吸收特性，例如复介电常数和磁导率。电磁数据表明，与纯Fe_3O_4和我们先前报道的Fe_3O_4 @ TiO_2核壳微球相比，合成后的Fe_3O_4 @ TiO _2卵黄壳微球具有明显增强的微波吸收性能，这可能是由于具有独特的卵黄壳结构和具有较大的表面积和高孔隙率，以及功能性Fe_3O_4核与TiO_2壳之间的协同作用。

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《Chemistry: A European journal》 |2013年第21期|共7页
作者
Liu J.; Xu J.; Che R.; Chen H.; Liu M.; Liu Z.;
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正文语种 eng
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magnetic properties; microwave absorption; nanostructures; solvothermal synthesis; titanium; yolk-shell materials;

机译：磁性;微波吸收;纳米结构;溶剂热合成;钛;蛋壳材料;

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专利

1. Hierarchical Fe_3O_4@TiO_2 yolk-shell microspheres with enhanced microwave-absorption properties [J] . Liu J., Xu J., Che R., Chemistry: A European journal . 2013,第21期

机译：具有增强的微波吸收特性的分层Fe_3O_4 @ TiO_2卵黄壳微球
2. Hierarchical yolk-shell WO3 microspheres with highly enhanced photoactivity for selective alcohol oxidations [J] . Chen Zimei, Wang Jinguo, Zhai Guangjun, Applied Catalysis, B. Environmental: An International Journal Devoted to Catalytic Science and Its Applications . 2017,第期

机译：分层蛋黄 - 壳WO3微球，具有高度增强的选择性酒精氧化
3. Template-free synthesis of hierarchical yolk-shell Co and N codoped porous carbon microspheres with enhanced performance for oxygen reduction reaction [J] . Chao Shujun, Cui Qian, Wang Kui, Journal of power sources . 2015,第auga15期

机译：无模板合成具有增强的氧还原反应性能的蛋黄-壳型钴和氮共掺杂多孔碳微球
4. Low-Temperature and Highly Enhanced NO_2 Sensing Performance of Au-Functionalized WO_3 Microspheres with a Hierarchical Nanostructure [C] . Yanbai Shen, Si kai Zhao, Lijun Jia Pacific Rim Meeting on Electrochemical and Solid-State Science . 2020

机译：低温和高度增强的NO_2 Au官能化WO_3微球的感测性能，分层纳米结构
5. Microfluidic Synthesis of Monodisperse Yolk-Shell Titania Microspheres as Photo-Catalysts for Dry Reforming of Methane [D] . Parker, Matthew. 2019

机译：单分散蛋黄壳二氧化钛微球的微流体合成作为甲烷干重整的光催化剂
6. Dataset on the effect of the reaction temperature during spray pyrolysis for the synthesis of the hierarchical yolk-shell CNT-(NiCo)O/C microspheres [O] . Se Hwan Oh, Jung Sang Cho 2019

机译：喷雾热解反应温度对分层卵黄壳CNT-（NiCo）O / C微球合成影响的数据集
7. Dataset on the effect of the reaction temperature during spray pyrolysis for the synthesis of the hierarchical yolk-shell CNT-(NiCo)O/C microspheres [O] . Se Hwan Oh, Jung Sang Cho 2019

机译：用于在喷雾热解期间的反应温度效果的数据集，用于合成分层蛋白壳-NNT-（Nico）O / C微球的合成

Hierarchical Fe_3O_4@TiO_2 yolk-shell microspheres with enhanced microwave-absorption properties

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