We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Synthesis and surface modification of cobalt nanoparticles and electromagnetic property of Co/PPy nanocomposites.
- Authors
Wang, Hai-Cheng; Yan, Zhi-Ran; Deng, Ling; Dong, Hua; Jia, Yi-He; Ma, Ning; He, Jun; Yu, Guang-Hua
- Abstract
In this work, cobalt nanoparticles were synthesized by chemical reduction procedure. After the hydrophilic functionalization, Co/polypyrrole (PPy) nanocomposites were prepared by in situ polymerization of pyrrole in aqueous dispersion of Co nanoparticles. The Co/PPy nanocomposites show good electromagnetic properties with both magnetic loss and dielectric loss to electromagnetic wave. The electromagnetic wave absorbing bandwidth (reflection loss <−10 dB) for Co/PPy (20 wt%) is above 5.5 GHz at a thickness of 2 mm, and with a maximum reflection loss (around −20.02 dB) at 14.77 GHz. This magnetic nanoparticles/conducting polymer nanocomposites are great potential candidates for electromagnetic wave absorbent, because of their wide-absorbing frequency, strong absorption, good compatibility, low density, and controllable absorbing properties.
- Publication
Rare Metals, 2015, Vol 34, Issue 4, p223
- ISSN
1001-0521
- Publication type
Article
- DOI
10.1007/s12598-014-0438-5