Chain-like structure created by assembly of cobalt nanoparticles using PVP as soft template.
Using a wet chemical method, we have synthesized chain-like structure with diameters of 200-250 nm and lengths of approximately 10 microm formed by assembly of small cobalt nanoparticles. The chain-like structures were realized via reaction of CoCl2 x 6H2O and N2H4 in the presence of PVP in an ethylene glycol solution. Magnetic measurements show a coercivity of about 122 Oe at 300 K. We also propose a possible mechanism for the formation of the chain-like structures.
School of Materials Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China.
YaHui
Y
Zhang
Fang
F
Liang
Ning
N
Wang
Lin
L
Guo
Lin
L
He
Chinping
C
Chen
Qi
Q
Zhang
Qunpeng
Q
Zhong
D003035:Cobalt / Q000737:chemistry*; D003460:Crystallization / Q000379:methods*; D046911:Macromolecular Substances / Q000737:chemistry; D008280:Magnetics; D008422:Materials Testing; D008968:Molecular Conformation; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure*; D036103:Nanotechnology / Q000379:methods*; D010316:Particle Size; D011205:Povidone / Q000737:chemistry*; D013499:Surface Properties
D046911:Macromolecular Substances; D003035:Cobalt; D011205:Povidone