Document Type
Article
Original Publication Date
2012
Journal/Book/Conference Title
Journal of Applied Physics
Volume
111
Issue
7
DOI of Original Publication
10.1063/1.3677816
Date of Submission
October 2015
Abstract
Exchange coupled cobalt–carbide nanocomposites and single-phase Co2C nanoparticles were synthesized using the polyol process. Hydroxide and chloride anions were used to controlcarbide phase and particle shape. Synthesized Co x C nanocomposites exhibited average diameters around 300 nm. Co x C nanocomposites synthesized at 0.25 M [OH−] and [Cl−] formed clusters of capped nanorods, whereas synthesis at 0.37 M [OH−] and [Cl−] produced clusters of long blade-like particles. For single-phase Co2C, an [OH−] and [Cl−] of 0.71 M was used and produced clusters of ellipsoidal grains. The Co x C nanocomposites comprised of capped nanorods possessed a BH max of 1.65 MGOe with a magnetic saturation and coercivity values of 38 emu/g and 2.4 kOe, respectively. Co2C possessed a saturation magnetization of 16 emu/g and coercivity of 1.3 kOe.
Rights
Huba, Z. J., and Carpenter, E. Size and phase control of cobalt-carbide nanoparticles using OH- and Cl- anions in a polyol process. Journal of Applied Physics, 111, 07B529 (2012). Copyright © 2012 American Institute of Physics.
Is Part Of
VCU Chemistry Publications
Comments
Originally published at http://dx.doi.org/10.1063/1.3677816