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https://doi.org/10.3938/NPSM.69.234
Magnetic Heat Effects of FeCoNi Nanoparticles Coated on Edge-Oxidized Graphene Sheets Under an Alternating Magnetic Field
New Phys.: Sae Mulli 2019; 69: 234~239
Published online March 29, 2019;  https://doi.org/10.3938/NPSM.69.234
© 2019 New Physics: Sae Mulli.

Jinu KIM, Ki Hyeon KIM*, Taehoon KIM, Byungmun JUNG

Department of Physics, Yeungnam University, Gyeongsan 38541, Korea
Correspondence to: kee1@ynu.ac.kr
Received December 12, 2018; Revised January 8, 2019; Accepted January 9, 2019.
cc This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
To evaluate the self-heat behaviors of the FeCoNi magnetic nanoparticles decorated on edge-oxidized graphene (EOG) nanosheets, are deposited FeCoNi magnetic nanoparticles on EOG by using an electroless plate method. The mean diameter of the FeCoNi nanoparticles coated on EOG (FCNEOG) was approximately 45 nm. The saturation magnetization and coercivity of FCNEOG were 157 emu/g and 105 Oe, respectively. The heat elevations of the FCNEOG in silicon oil were measured at alternating magnetic fields of 75, 100, 125 Oe with frequencies of 155, 250 and 355 kHz, respectively, under an initial temperature of 25$^\circ$C. The maximum temperatures elevation increased from 38$^\circ$C to 46$^\circ$C at 125 Oe and 355 kHz at the concentration of FCNS was varied from 5 mg/ml to 10 mg/ml. The temperatures elevation varied from 4.2$^\circ$C (75 Oe and 355 kHz) to 21.5$^\circ$C (125 Oe and 355 kHz) and the specific loss powers varied from 2.8 W/g to 11.1 W/g for FeCoNi on GO at a concentration of 7 mg/ml.
PACS numbers: 75.50.Bb, 75.90.+w, 81.05.ue, 81.15.Pq, 81.20.-n
Keywords: FeCoNi, Graphene oxide, Electroless plating, Hyperthermia


May 2019, 69 (5)
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