Boron and nitrogen doped carbon nanotubes/Fe3O4 composite architectures with microwave absorption property
Boron and nitrogen doped carbon nanotubes/Fe3O4 composite architectures with microwave absorption property
复制标题
DOI：
10.1016/j.ceramint.2015.03.031
复制
发表时间：
2015-07
影响因子：
5.2
通讯作者：
Tao Zhang;B. Zhong;Jixian Yang;X. Huang;G. Wen
中科院分区：
文献类型：
--
作者：
Tao Zhang;B. Zhong;Jixian Yang;X. Huang;G. Wen
采用压力辅助前驱体热解和凝胶浸渍固化法制备了硼、氮掺杂碳纳米管/Fe3O4(BNCNTs/Fe3O4)复合结构。直径约30 nm的纳米Fe3O4粒子均匀分布在直径约300-400 nm、长数百微米的纳米管上。研究了BNCNTs/Fe3O4复合结构在2-18 GHz频率范围内的微波反射损耗。微波吸收性能与浸泡时间有关。复合材料结构在−为51.2 GHz处有最小的反射损耗(在120min的保温时间下对应的频率为11.7 GHz)，具有良好的微波吸收性能。
Boron and nitrogen doped carbon nanotubes/Fe3O4(BNCNTs/Fe3O4) composite architectures have been prepared by pressure assisted precursor pyrolysis and gel soaking–curing methods. Nano-scale Fe3O4particles with the diameter about 30 nm are uniformly distributed on the nanotubes which have the diameters about 300–400 nm and hundreds of microns in length. Microwave reflection loss of BNCNTs/Fe3O4composite architectures was investigated in the frequency of 2–18 GHz. The microwave absorption property is depended on the soaking time. The composite architectures exhibit the minimum reflection loss at −51.2 dB (the corresponding frequency is 11.7 GHz at the soaking time of 120 min) suggesting the good microwave absorption properties.