{"title":"Rietveld refinement and magnetic characterization of nanospheric CoFe2O4 prepared under the effect of ethylene glycol and H2O","authors":"Amel Mohamed Abouelnaga, Ali B. Abou Hammad","doi":"10.1007/s10971-024-06463-0","DOIUrl":null,"url":null,"abstract":"<p>Cobalt ferrite nanoparticles (CF NPs) have received appreciable interest recently due to their impressive chemical stability, high coercivity, and potent anisotropic magneto-crystalline. The Sol-gel method was appointed to manufacture Cobalt ferrites, utilizing ethylene glycol (Eth) and water (H<sub>2</sub>O) as diverse solvents to construct CF-Eth and CF-H<sub>2</sub>O. The surface morphology, crystal structure, and magnetic properties of CF-Eth and CF-H<sub>2</sub>O NPs were entirely deliberated through techniques such as scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier transform infrared (FTIR), and vibrating sample magnetometer (VSM). The XRD refinement through Rietveld methods utilizing Fullprof software proved that both samples crystallized into a spinel structure in cubic phase with space group Fd-3 m. The Williamson-Hall Plot was employed to determine the crystallite size (G) and microstrain (ε). The mean crystallite size was found to be 73 nm and 51 nm for CF-Eth and CF-H<sub>2</sub>O, respectively. FE-SEM confirmed the regular shape distribution of the particles. The measured saturation magnetization (MS) was 76.6 and 71.9 emu g<sup>−1</sup> for CF-Eth and CF-H<sub>2</sub>O NPs, respectively, at room temperature.</p><h3 data-test=\"abstract-sub-heading\">Graphical Abstract</h3>","PeriodicalId":664,"journal":{"name":"Journal of Sol-Gel Science and Technology","volume":null,"pages":null},"PeriodicalIF":2.3000,"publicationDate":"2024-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Sol-Gel Science and Technology","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1007/s10971-024-06463-0","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, CERAMICS","Score":null,"Total":0}
引用次数: 0
Abstract
Cobalt ferrite nanoparticles (CF NPs) have received appreciable interest recently due to their impressive chemical stability, high coercivity, and potent anisotropic magneto-crystalline. The Sol-gel method was appointed to manufacture Cobalt ferrites, utilizing ethylene glycol (Eth) and water (H2O) as diverse solvents to construct CF-Eth and CF-H2O. The surface morphology, crystal structure, and magnetic properties of CF-Eth and CF-H2O NPs were entirely deliberated through techniques such as scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier transform infrared (FTIR), and vibrating sample magnetometer (VSM). The XRD refinement through Rietveld methods utilizing Fullprof software proved that both samples crystallized into a spinel structure in cubic phase with space group Fd-3 m. The Williamson-Hall Plot was employed to determine the crystallite size (G) and microstrain (ε). The mean crystallite size was found to be 73 nm and 51 nm for CF-Eth and CF-H2O, respectively. FE-SEM confirmed the regular shape distribution of the particles. The measured saturation magnetization (MS) was 76.6 and 71.9 emu g−1 for CF-Eth and CF-H2O NPs, respectively, at room temperature.
期刊介绍:
The primary objective of the Journal of Sol-Gel Science and Technology (JSST), the official journal of the International Sol-Gel Society, is to provide an international forum for the dissemination of scientific, technological, and general knowledge about materials processed by chemical nanotechnologies known as the "sol-gel" process. The materials of interest include gels, gel-derived glasses, ceramics in form of nano- and micro-powders, bulk, fibres, thin films and coatings as well as more recent materials such as hybrid organic-inorganic materials and composites. Such materials exhibit a wide range of optical, electronic, magnetic, chemical, environmental, and biomedical properties and functionalities. Methods for producing sol-gel-derived materials and the industrial uses of these materials are also of great interest.