Facile synthesis and enhanced electromagnetic microwave absorption performance for porous core-shell Fe3O4@MnO2 composite microspheres with lightweight feature
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- 作者：Mingtao Qiao ; Xingfeng Lei ; Yong Ma ; Lidong Tian ; Wenbin Wang ; Kehe Su ; Qiuyu Zhang ; qyzhang@nwpu.edu.cn
- 关键词：Fe3O4 ; MnO2 ; Pore ; Core-shell ; Microwave absorption
- 刊名：Journal of Alloys and Compounds
- 出版年：2017
- 出版时间：5 February 2017
- 年：2017
- 卷：693
- 期：Complete
- 页码：432-439
- 全文大小：2627 K
- 卷排序：693
文摘
Porous core-shell Fe3O4@MnO2 composite microspheres have been synthesized. The BET specific surface area is 167 m2/g. The pore width is mainly distributed in the range of 2.0–12.0 nm. They possess the strongest RL peak of −42.6 dB (5.7 GHz) at loading 10 wt%. The excellent absorbing bandwidth is located in the 10.2–15.0 and 15.5–17.3 GHz.