A Novel Method to Synthesize Co/Fe3O4 Nanocomposites with Optimal Magnetic and Microwave Performance

被引：4

作者：

Zhang, Chi ^{[1
]}

Wang, Yao ^{[2
]}

Chen, Yun ^{[1
]}

Wang, Yatao ^{[1
]}

Wang, Peng ^{[3
]}

Wu, Qiong ^{[1
]}

机构：

[1] Beijing Univ Technol, Fac Mat & Mfg, Key Lab Adv Funct Mat, Minist Educ, Beijing 100124, Peoples R China

[2] Minist Ind & Informat Technol China, Ind Dev & Promot Ctr, Beijing 100846, Peoples R China

[3] Anhui Univ, Sch Phys & Mat Sci, Dept Phys, Hefei 230601, Peoples R China

来源：

NANOMATERIALS | 2022年 / 12卷 / 16期

基金：

中国国家自然科学基金;

关键词：

magnetic materials; nanoparticles; nanocomposites; electromagnetic; ABSORPTION PROPERTIES; FACILE SYNTHESIS; LIGHTWEIGHT; COMPOSITES; EFFICIENT; NI; CO;

D O I：

10.3390/nano12162764

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The magnetic interactions between neighboring magnetic nanoparticles make the synthesis of nanocomposites made of two kinds of magnetic nanoparticles extremely difficult. In this paper, to achieve an effective nanocomposite of Co and Fe3O4 nanoparticles, a special urchin-like Co nanomatrix was used to prepare the Co/Fe3O4 nanocomposites. The Fe3O4 nanoparticles are evenly embedded into the branches of the C-O clusters, bringing the two types of particles into close contact and ensuring the optimal magnetic and microwave properties. The electromagnetic (EM) parameters at 1-18 GHz and the magnetic loss tangents can be effectively modulated, and the absorption frequency bands of the EM waves are shifted to the X-Ku bands (8-18 GHz) from the S-C bands (2-8 GHz) after the Fe3O4 nanoparticles are compounded.

引用

页数：10

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