scholarly journals Correlating the size and cation inversion factor in context of magnetic and optical behavior of CoFe2O4 nanoparticles

RSC Advances ◽  
2020 ◽  
Vol 10 (36) ◽  
pp. 21259-21269 ◽  
Author(s):  
Jitendra Pal Singh ◽  
Jae Yeon Park ◽  
Varsha Singh ◽  
So Hee Kim ◽  
Weon Cheol Lim ◽  
...  
Keyword(s):  
Synchrotron Radiation ◽  
Cobalt Ferrite ◽  
Ferrite Nanoparticles ◽  
Cofe2o4 Nanoparticles ◽  
Cobalt Ferrite Nanoparticles ◽  
Size Dependent ◽  
Dependent Behavior ◽  
Optical Behavior

Herein, the size dependent behavior of cobalt ferrite nanoparticles was investigated using synchrotron radiation based techniques.

Size-dependent antimicrobial properties of the cobalt ferrite nanoparticles

2016 ◽  
Vol 18 (10) ◽  
Author(s):  
Rokas Žalnėravičius ◽  
Algimantas Paškevičius ◽  
Marija Kurtinaitiene ◽  
Arūnas Jagminas
Keyword(s):  
Cobalt Ferrite ◽  
Antimicrobial Properties ◽  
Ferrite Nanoparticles ◽  
Cobalt Ferrite Nanoparticles ◽  
Size Dependent

Magnetocaloric effect and size-dependent study of the magnetic properties of cobalt ferrite nanoparticles prepared by solvothermal synthesis

2008 ◽  
Vol 205 (6) ◽  
pp. 1358-1362 ◽  
Author(s):  
C. Vázquez-Vázquez ◽  
M. Lovelle ◽  
C. Mateo ◽  
M. A. López-Quintela ◽  
M. C. Buján-Núñez ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Magnetocaloric Effect ◽  
Solvothermal Synthesis ◽  
Cobalt Ferrite ◽  
Ferrite Nanoparticles ◽  
Cobalt Ferrite Nanoparticles ◽  
Size Dependent

scholarly journals Cobalt Ferrite Nanoparticles: An Innovative Approach for Enhanced Oil Recovery Application

2012 ◽  
Vol 17 ◽  
pp. 115-126 ◽  
Author(s):  
Noorhana Yahya ◽  
Muhammad Kashif ◽  
Nadeem Nasir ◽  
Majid Niaz Akhtar ◽  
Noorasikin Mohd Yusof
Keyword(s):  
Magnetic Field ◽  
Field Strength ◽  
Magnetic Field Strength ◽  
Enhanced Oil Recovery ◽  
Oil Recovery ◽  
Cobalt Ferrite ◽  
Ferrite Nanoparticles ◽  
Cofe2o4 Nanoparticles ◽  
Cobalt Ferrite Nanoparticles ◽  
The Magnetic Field

This Paper Describes the Synthesis of Cobalt Ferrite (CoFe2O4) Nanoparticles and their Application in Enhanced Oil Recovery. Cobalt Ferrite (CoFe2O4) Nanoparticles Were Used as Ferrite Magnetic Feeders with Antenna to Improve the Magnetic Field Strength and Cobalt Ferrite Nanofluid to Improve Oil Recovery. Cobalt Ferrite (CoFe2O4) Nanoparticles Were Synthesized by Sol-Gel Method. these Nanoparticles Were then Characterized by Using X-Ray Diffractometer (XRD) and Field Emission Scanning Electron Microscope (FESEM). Cobalt Ferrite Nanoparticles Annealed at 600oC, the Particle Size Is 51.17nm and 26nm as Determined by XRD and FESEM, Respectively while for the Sample Annealed at 800oC, the Particle Size Is 62nm as Determined by XRD and 60 Nm as Determined by FESEM. Magnetic Measurement Results Show that Initial Permeability of Cobalt Ferrite Powder Increased and Relative Loss Factor Decreased at High Frequency. in Order to Improve the Oil Recovery, Nanoparticles Were Used in Two Different Experiments. in the First Experiment, Nanoparticles Were Used as Magnetic Feeders with an Antenna to Improve the Magnetic Field Strength. in the Second Experiment, Nanoparticles Were Used as Nanofluids. Results Show that the Antenna with Magnetic Feeders Increases the Magnetic Field Strength by 0.94% as Compared to Antenna without Magnetic Feeders in the Water, and by 5.90% in the Air. Magnitude versus Offset (MVO) Study of Antenna with Magnetic Feeders Shows an Increase in Magnetic Field Strength of 275% as Compared to Antenna without Magnetic Feeders. it Is Found that Antenna with Magnetic Feeders Was Able to Recover 29.50% and 20.82% of Original Oil in Place (OOIP) in Core Rock Samples A-1 and A-2 Respectively. the Use of Cobalt Ferrite Nanoparticles as a Nanofluid with Electromagnetic Waves Yielded a Higher Recovery of Residual Oil in Place (ROIP) which Is 31.58% as Compared to 8.70% when it Was Used as Nanofluid Alone. it Is Investigated that due to Absorption of Electromagnetic Waves by Cobalt Ferrite Nanoparticles the Oil Viscosity Reduces which Increase the Oil Recovery. it Can Be Concluded that the Synthesised Cobalt Ferrite (CoFe2O4) Nanoparticles Can Be Potentially Used for Enhanced Oil Recovery in Future.

scholarly journals Shape-controlled CoFe2O4 nanoparticles as an excellent material for humidity sensing

RSC Advances ◽  
2017 ◽  
Vol 7 (88) ◽  
pp. 55778-55785 ◽  
Author(s):  
Yogendra Kumar ◽  
Alfa Sharma ◽  
Parasharam M. Shirage
Keyword(s):  
Cobalt Ferrite ◽  
Ferrite Nanoparticles ◽  
Cofe2o4 Nanoparticles ◽  
Humidity Sensing ◽  
Cobalt Ferrite Nanoparticles ◽  
Controlled Morphology ◽  
Solution Route ◽  
Shape Controlled ◽  
Sensing Performance

The humidity sensing performance of cobalt ferrite nanoparticles (CoFe2O4 NPs) with controlled morphology obtained via a solution route is reported in this work.

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