![]() ![]() ![]() (10)įor the synthesis of metal ferrite nanoparticles, organic solvents, (21) surfactants, (21,22) organometallic compounds, (8) and other organic molecules are often used to control their size and shape. (9) The ability to control magnetic properties, such as saturation magnetization, remanent magnetization, and coercivity of these ferrite nanostructures, is important not only for the fundamental understanding of magnetism in these important materials but also for their applications as magnetic resonance imaging contrast-enhancement agents and in magnetic hyperthermia for biomedical therapeutic purposes. ![]() (3,8) Nickel ferrite is a soft magnetic material with high electrical resistivity useful for high-frequency applications, such as transformer cores. (3) The reported magnetization values of CoFe 2O 4 and NiFe 2O 4 nanoparticles (NPs) at 50 000 Oe are generally higher than 60 and 40 emu/g, respectively. (6,7) CoFe 2O 4 and NiFe 2O 4 are interesting ferrimagnetic materials with inverse spinel structure. Although magnetic nanostructures of spinel and rhombohedral perovskite types have shown a great promise to study their unusual magnetic behaviors and associated technological applications, such as high density data storage, memory devices/read-out head, (1−4) they have been routinely applied in the purification of wastewater, (5) bactericide, and organic dye degradation. Magnetic nanomaterials are of immense current scientific and technological interest. Catalytic behavior of the fabricated spinel NPs revealed that the samples containing metallic Ni are active catalysts for the degradation of 4-nitrophenol in aqueous medium. Although the saturation magnetization ( M s) of Co 0.5Ni 0.5Fe 2O 4 NPs lies in between the saturation magnetization values of CoFe 2O 4 and NiFe 2O 4 NPs, high coercivity ( H c, 875 Oe) of the NPs indicate their hard ferromagnetic behavior. XRD analyses of the samples indicate that the Co 0.5Ni 0.5Fe 2O 4 NPs have lattice parameter larger than that of NiFe 2O 4, but smaller than that of CoFe 2O 4 NPs. X-ray diffraction (XRD), Raman spectroscopy, vibrating sample magnetometry, and X-ray photoelectron spectroscopy techniques were utilized to characterize the synthesized materials. The NH 3 gas generated during the thermal decomposition of the amino acid (glycine, H 2NCH 2COOH) induced the reduction reaction. For the N/G ratio 3, certain amount of Ni 2+ cations was reduced to metallic nickel. ![]() Although nitrate ions/glycine (N/G) ratios of 3 and 6 were used for the synthesis, phase-pure NPs could be obtained only for the N/G ratio of 6. Your goal is to set up your channel in a way to help people subscribe and have them keep coming back.Here, we present the low-temperature (∼600 ☌) solution combustion method for the fabrication of CoFe 2O 4, NiFe 2O 4, and Co 0.5Ni 0.5Fe 2O 4 nanoparticles (NPs) of 12–64 nm range in pure cubic spinel structure, by adjusting the oxidant (nitrate ions)/reductant (glycine) ratio in the reaction mixture. That’s exactly what the Profounder lower-thirds are - professionally designed animated visuals that will capture your audience attention and increase your subscription rate. Lower-thirds should look professional, be easy to read and also complement your visuals, giving more context to your content. You can use lower-thirds to highlight and enhance the important people, products and places in your videos. You can always use verbal reminders, but adding professional-looking lower-thirds is more effective since it conveys information more accurately. This is an effective way to capture your viewers’ attention and prompt them to subscribe to your social media. Social media animations can be used on YouTube, Twitch and any other video streaming platforms, and can link to you Instagram, Twitter, Facebook, Tiktok or any other known social media platforms (36+ social media platforms in our animation pack). Social Media Lower Thirds consist of animated social media icons with your on it. This is basically an animated video overlay which you can customize by adding your profile name, picture and description. ![]()
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