TY - JOUR
T1 - Uniform growth of fct FePt nanoparticles on the surface of reduced-GO via a green facile approach. Ferromagnetic r-GO nanocomposites with high coercivity and surface area
AU - Tzitzios, Vasileios
AU - Hu, Xiaocao
AU - Dimos, Konstantinos
AU - Gournis, Dimitrios
AU - Georgakilas, Vasilios
AU - Avgouropoulos, George
AU - Katsiotis, Marios S.
AU - Alhassan, Saeed M.
AU - Hadjipanayis, George
N1 - Funding Information:
Part of this work was supported by DOE under the grant DE-BES-FG02-90ER45413.
Publisher Copyright:
© 2017 Elsevier Ltd
PY - 2017/9
Y1 - 2017/9
N2 - FePt nanoparticles with the chemically ordered fct crystal structure have been widely studied because of the unique magnetic properties and the electrocatalytic activity for Oxygen Reduction Reactions (ORR). In this study, reduced graphene oxide (r-GO) supported FePt nanoparticles are successfully synthesized by a facile and completely green chemical approach. The structural, morphological, physicochemical and magnetic properties of the synthesized materials are systematically investigated by X-ray diffraction (XRD), Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM) and vibrating sample magnetometer (VSM) measurements. It is shown that the FePt nanoparticles with the fct crystal structure uniformly growth on the surface of the r-GO and remain isolated even after high temperature thermal treatment. Furthermore, the nanocomposite materials reveal strong ferromagnetic behavior at room temperature.
AB - FePt nanoparticles with the chemically ordered fct crystal structure have been widely studied because of the unique magnetic properties and the electrocatalytic activity for Oxygen Reduction Reactions (ORR). In this study, reduced graphene oxide (r-GO) supported FePt nanoparticles are successfully synthesized by a facile and completely green chemical approach. The structural, morphological, physicochemical and magnetic properties of the synthesized materials are systematically investigated by X-ray diffraction (XRD), Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM) and vibrating sample magnetometer (VSM) measurements. It is shown that the FePt nanoparticles with the fct crystal structure uniformly growth on the surface of the r-GO and remain isolated even after high temperature thermal treatment. Furthermore, the nanocomposite materials reveal strong ferromagnetic behavior at room temperature.
KW - fct
KW - FePt
KW - Ferromagnetic nanocomposites
KW - Green chemistry
KW - L1 ordering
KW - Reduced graphene oxide
UR - http://www.scopus.com/inward/record.url?scp=85020054448&partnerID=8YFLogxK
U2 - 10.1016/j.carbon.2017.05.077
DO - 10.1016/j.carbon.2017.05.077
M3 - Article
AN - SCOPUS:85020054448
SN - 0008-6223
VL - 121
SP - 209
EP - 216
JO - Carbon
JF - Carbon
ER -