Results 11 to 20 of about 26,989 (181)
Fabrication of Maghemite Nanoparticles with High Surface Area
Nanomaterials, 2019 Maghemite nanoparticles with high surface area were obtained from the dehydroxylation of lepidocrocite prismatic nanoparticles. The synthesis pathway from the precursor to the porous maghemite nanoparticles is inexpensive, simple and gives high surface ...
Yulia Trushkina +2 more
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Mechanochemical synthesis and magnetic properties of maghemite [PDF]
Vojnotehnički Glasnik, 2011 This work presents the results of an investigation on maghemite (γ -Fe2O3) nanoparticles magnetic properties, which show superparamagnetic behavior i.e. superparamagnetism. Nanoscale maghemite samples were obtained by the mechanochemical method.
Marin M. Tadić, Nada M. Čitaković
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Effect of Nitric Acid Concentrations on Synthesis and Stability of Maghemite Nanoparticles Suspension [PDF]
The Scientific World Journal, 2014 Maghemite (γ-Fe2O3) nanoparticles have been synthesized using a chemical coprecipitation method at different nitric acid concentrations as an oxidizing agent.
Irwan Nurdin +3 more
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Nanomaterials, 2022 Iron oxides/oxyhydroxides, namely maghemite, iron oxide-silica composite, akaganeite, and ferrihydrite, are studied for AsV and AsIII removal from water in the pH range 2–8.
Marco Sanna Angotzi +7 more
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MRI Relaxivity Changes of the Magnetic Nanoparticles Induced by Different Amino Acid Coatings
Nanomaterials, 2020 In this study, we analysed the physico-chemical properties of positively charged magnetic fluids consisting of magnetic nanoparticles (MNPs) functionalised by different amino acids (AAs): glycine (Gly), lysine (Lys) and tryptophan (Trp), and the ...
Iryna Antal +8 more
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Synthesis and Characterization of Maghemite as an Anode for Lithium-Ion Batteries
International Journal of Electrochemical Science, 2016 Thermal decomposition method were used to synthesize magnetite nanoparticles which then oxidized to maghemite. Simultaneous thermal analysis, X-ray diffraction, and Fourier transform infrared spectroscopy disclosed the formation of iron-urea complex and ...
M. Golmohammad +2 more
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Synthesis of Oxide Iron Nanoparticles Using Laser Ablation for Possible Hyperthermia Applications
Nanomaterials, 2020 In this work, iron oxide nanoparticles produced using the laser ablation technique were studied in order to determine the characteristics of these nanoparticles as a function of the laser energy for the possible application in magnetic hyperthermia ...
María J. Rivera-Chaverra +4 more
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Surface Effects in Maghemite Nanoparticles [PDF]
, 2007 A consistent model is presented for the variation of saturation magnetization with particle size in maghemite nanoparticles, based on the existence of a magnetically disordered layer with a constant thickness of 1 nm.
Snoeck, E. +6 more
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Geochemistry, Geophysics, Geosystems, 2023 Ferromanganese nodules are cm‐sized, authigenic, abyssal manganese‐iron‐hydroxide concretions. They grow very slowly at rates of a few mm per million years.
Hirokuni Oda +4 more
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Local Structure and Magnetism of Fe2O3 Maghemite Nanocrystals: The Role of Crystal Dimension
Nanomaterials, 2020 Here we report on the impact of reducing the crystalline size on the structural and magnetic properties of γ-Fe2O3 maghemite nanoparticles. A set of polycrystalline specimens with crystallite size ranging from ~2 to ~50 nm was obtained combining ...
Mauro Coduri +14 more
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