One-dimensional hierarchical layered KxMnO2 (x < 0.3) nanoarchitectures: synthesis, characterization, and their magnetic properties.
One-dimensional (1D) hierarchical nanostructures of ultralong layered K(x)MnO(2) (x < 0.3) bundles with diameters 50-100 nm and lengths up to 50-100 microm have been successfully prepared by a PEG-assisted hydrothermal method based on the reaction of KMnO(4) with 2-ethylhexanol. The obtained samples ascribe to the monoclinic phase and exhibit ferromagnetic behaviors below 32 K and paramagnetic behaviors above 32 K, which may make this system a promising base material for magnetic devices. A series of contrastive experiments have illustrated that 2-ethylhexanol, PEG 400, KOH, and reaction time play an important role in the synthesis of the nanobundles. A possible growth mechanism has been proposed.
Ge
Jiechao
J
College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, People's Republic of China.
Zhuo
Linhai
L
Yang
Fei
F
Tang
Bo
B
Wu
Lizhu
L
Tung
Chenho
C
D008280:Magnetics; D049329:Nanostructures / Q000737:chemistry*; D010545:Peroxides / Q000737:chemistry*; D011092:Polyethylene Glycols; D011196:Potassium Permanganate / Q000737:chemistry
D010545:Peroxides; C097259:potassium manganese peroxide; D011196:Potassium Permanganate; D011092:Polyethylene Glycols