TY - JOUR
T1 - Effect of CTAB on morphology and magnetic properties of cobalt particles prepared by liquid phase reduction method
AU - Wen, Shu Lai
AU - Cheng, Jing Wei
AU - Li, Hong
AU - Liu, Ying
AU - Zhao, Xiu Chen
AU - Wang, Yu Feng
PY - 2014
Y1 - 2014
N2 - Using CTAB as surfactant active agent, the spicate cobalt particles were synthesized through liquid phase reduction method. The cobalt particles were characterized by scanning electron microscopy (SEM), energy disperse spectroscopy (EDS), the X-ray diffraction (XRD) and vibrating sample magnetometer (VSM), respectively. The results show that the spicate cobalt particles with CTAB are assembled by nanoplates, mainly composed by HCP structure, while the cobalt particles without CTAB are mainly composed by FCC structure. For the cobalt particles with CTAB, saturation magnetization and coercivity are 116.17A·m2·kg-1 and 20.3kA·m-1, respectively, while for the cobalt particles without CTAB, saturation magnetization and coercivity are 158.24A·m2·kg-1 and 9.174kA·m-1, respectively. The differences in magnetic properties mainly result from grain size, magnetocrystalline anisotropy, shape anisotropy and defect of cobalt particles.
AB - Using CTAB as surfactant active agent, the spicate cobalt particles were synthesized through liquid phase reduction method. The cobalt particles were characterized by scanning electron microscopy (SEM), energy disperse spectroscopy (EDS), the X-ray diffraction (XRD) and vibrating sample magnetometer (VSM), respectively. The results show that the spicate cobalt particles with CTAB are assembled by nanoplates, mainly composed by HCP structure, while the cobalt particles without CTAB are mainly composed by FCC structure. For the cobalt particles with CTAB, saturation magnetization and coercivity are 116.17A·m2·kg-1 and 20.3kA·m-1, respectively, while for the cobalt particles without CTAB, saturation magnetization and coercivity are 158.24A·m2·kg-1 and 9.174kA·m-1, respectively. The differences in magnetic properties mainly result from grain size, magnetocrystalline anisotropy, shape anisotropy and defect of cobalt particles.
KW - Cetyl trimethyl ammonium bromide(CTAB)
KW - Cobalt particle
KW - Coercivity
KW - Saturation magnetization
UR - http://www.scopus.com/inward/record.url?scp=84906922262&partnerID=8YFLogxK
U2 - 10.11868/j.issn.1001-4381.2014.08.004
DO - 10.11868/j.issn.1001-4381.2014.08.004
M3 - Article
AN - SCOPUS:84906922262
SN - 1001-4381
SP - 21
EP - 26
JO - Cailiao Gongcheng/Journal of Materials Engineering
JF - Cailiao Gongcheng/Journal of Materials Engineering
IS - 8
ER -