نتایج جستجو برای: cofe2o4 nanoparticles

تعداد نتایج: 107545  

Journal: :Soft matter 2014
Artem Kovalenko Julien Jouhannaud Prasad Polavarapu Marie Pierre Krafft Gilles Waton Geneviève Pourroy

We report on the stabilization of nanoparticle-decorated microbubbles for long periods of time using a synergism between a soluble surfactant and nanoparticles. The soluble surfactant is the perfluoroalkyl phosphate C8F17(CH2)2OP(O)(OH)2 (labeled F8H2Phos) and the nanoparticles (NPs) are 20-25 nm cobalt ferrite (CoFe2O4). The NP-F8H2Phos system has been studied by dynamic light scattering, dyna...

Journal: :Iraqi journal of Veterinary Sciences 2021

The antimicrobial resistance currently impedes and threatens the future of effective prevention treatment continually expanding range infections caused by bacteria. This study aimed to identify bacterial causes wound infection among animals using antibiotic/nanoparticles mixture as a new attempt for induced in rats. For this purpose, 112 swabs cases different animal types (36 sheep, 21 goats, 1...

Journal: :Nucleation and Atmospheric Aerosols 2021

This research discusses the development of magnetic materials as an effort to produce renewable catalysts in overcoming energy crisis. The purpose this study was synthesize and characterize MgO/CoFe2O4 nanoparticles using coprecipitation method. synergy between substances that are catalysts, namely MgO CoFe2O4 expected a superior catalyst for biodiesel production. stages were by continued with ...

Journal: :Processing and Application of Ceramics 2023

Supercapacitors are energy storage devices that can cleanly and efficiently meet the growing demand. The presentwork describes synthesis of nanoparticles cobalt ferrite (CoFe2O4) by combustion method their use with activated carbon (AC) to manufacture supercapacitors. In order study influence composition on electrochemical properties, supercapacitors three different compositions were produced: ...

2004
S. Melle F. Torres A. Juliá P. García-Mochales F. Briones

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...

2011
Emad Girgis Mohamed MS Wahsh Atef GM Othman Lokeshwar Bandhu KV Rao

The optical properties of multi-functionalized cobalt ferrite (CoFe2O4), cobalt zinc ferrite (Co0.5Zn0.5Fe2O4), and zinc ferrite (ZnFe2O4) nanoparticles have been enhanced by coating them with silica shell using a modified Stöber method. The ferrites nanoparticles were prepared by a modified citrate gel technique. These core/shell ferrites nanoparticles have been fired at temperatures: 400°C, 6...

Journal: :Physical chemistry chemical physics : PCCP 2015
Beibei Wang Gang Wang Zhengyuan Lv Hui Wang

In this article, we demonstrate a simple solvothermal method towards in situ growth of hierarchical CoFe2O4 nanoclusters on graphene aerogels (GAs). SEM and TEM results confirm that CoFe2O4 nanoclusters are well wrapped by the graphene skeleton. As an anode material for lithium-ion batteries, the CoFe2O4/GAs composite displays a stable cycling performance with a reversible capacity of over 100 ...

2010
Vittorio Berbenni Chiara Milanese Giovanna Bruni Alessandro Girella Amedeo Marini

Cobalt ferrite (CoFe2O4) has been synthesized by a solid-state mechanothermal process, and its molar heat capacity has been determined. A stoichiometric mixture of CoC2O4 · 2H2O and FeC2O4 · 2H2O was subjected to a combination of mechanical activation (by high-energy milling) and thermal activation (by annealing at temperatures between 300 and 700 ◦C). The process was followed by thermogravimet...

Ali Daneshvar Fatemeh Mostaghni, Majid Sakhaie

Green synthesis of nanoparticles makes use of environmental friendly, non-toxic and safe reagents. In this study, we synthesised CoFe2O4 in a green approach, using leaf extract of Chenopodium album. The structure of the synthesised sample were analyzed by X-ray diffraction methods. The synthesised Photocatalyst was applied for photo degradation of methy orange as a reliable model pollutant. The...

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