Cobalt/Polypyrrole Nanocomposites with Controllable Electromagnetic Properties（1）
第六届海内外中华青年材料科学技术研讨会（2015）——Cobalt/polypyrrole (Co/PPy) nanocomposites were prepared via an in situ oxidation polymerization of pyrrole in an aqueous dispersion of Co nanoparticles (NPs). The Co/PPy nanocomposites showed good electromagnetic properties because of the coexistence of magnetic loss and dielectric loss to electromagnetic waves. The electromagnetic wave absorbing bandwidth (reflection loss < −10 dB) for Co/PPy (30 wt% in a paraffin matrix) was located at 11.7–16.47 GHz with a thickness of 2 mm, and with a maximum reflection loss (around −33 dB) at 13.6 GHz. More interestingly, the electromagnetic wave absorbing properties of the nanocomposites can be easily controlled by tuning the ratio of the two components in the composites.
关键词： nanocomposites;electromagnetic properties;electromagnetic wave 第六届海内外中华青年材料科学技术研讨会（2015）
主讲人：A.P. Haicheng Wang 机构：University of Science and Technology Beijing
时长：0:10:26 年代：2015年
热点排行
- 1 揭开土豆减肥的秘密
- 2 英语学习策略（1）
- 3 古兽重现
- 4 《图书馆与信息服务营销》先导片
- 5 Excel实战技巧精粹
- 6 恐龙绝灭与生态危机（1）
- 7 在路上
- 8 生物医学图像处理——绪言（1）
京公网安备11010802020237号 |