نتایج جستجو برای: cofe2o4 nanoparticle
تعداد نتایج: 31564 فیلتر نتایج به سال:
This paper investigates the mixed convection flow related to Fe3O4-CoFe2O4/water hybrid ferrofluids on stagnation point over an exponentially stretching/shrinking surface with influence of magnetohydrodynamic (MHD), velocity slip, and heat source/sink. The proposed system differential equations is reduced using similarity transformation procedure that numerically solvable MATLAB. Dual solutions...
Magnetic nanopowders were developed by functionalization of bimagnetic core@shell nanoparticles with cysteine (CoFe2O4@ɣ-Fe2O3@Cys), which present a core high saturation magnetization (CoFe2O4) combined shell long-term chemical stability (ɣ-Fe2O3) and sorptive L-cysteine layer. Samples two different mean sizes elaborated characterized XRD, TEM, FTIR, SER, zetametry SQUID magnetometry. The adsor...
<p>This work focuses on the use of carbon-coated magnetic cobalt ferrite nanoparticles as catalysts for catalytic wet peroxide oxidation (CWPO) emerging concern pollutant paracetamol (PCM). The core catalyst is composed CoFe2O4 developed by a sol-gel method. subsequently coated with formaldehyde-resorcinol resin and TEOS, further carbonized at 600 ºC, etched NaOH to create yolk-shell stru...
Oxide materials which exhibit both ferroelectricity and ferromagnetism are of great interest for sensors and memory applications. Layered bismuth titanates with an Aurivillius structure, (BiFeO3)nBi4Ti3O12, can possess ferroelectric and ferromagnetic order parameters simultaneously. It has recently been demonstrated that one such example, Bi5Fe0.5Co0.5Ti3O15,where n = 1 with half the Fe 3+ site...
Iron oxide nanoparticles (NPs) have been proposed for many biomedical applications as in vivo imaging and drug delivery in cancer treatment, but their toxicity is an ongoing concern. When NPs are intravenously administered, the endothelium represents the first barrier to tissue diffusion/penetration. However, there is little information about the biological effects of NPs on endothelial cells. ...
UNLABELLED A novel conductive process for resistive random access memory cells is investigated based on nanoporous anodized aluminum oxide template. Bipolar resistive switching characteristic is clearly observed in CoFe2O4 thin film. Stable and repeatable resistive switching behavior is acquired at the same time. On the basis of conductive filament model, possible generation mechanisms for the ...
The square arrays are fabricated by e-beam lithography on polycrystalline Co sputtered on glass substrates. First, a continuous layer, 1000 nm thick, of polycrystalline Co is grown. This thickness guarantees optical opacity for the light used in the experiments, a 632.8 nm wavelength 1.5 mW laser. Secondly, the continuous Co layer is locally etched (all the way through to the glass substrate) t...
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