Regulation of saturation magnetization of magnetite by doping with group III elements

Ren, Yanying; Li, Yaning; Xu, Nan; Guo, Kun; Xu, Zhaohui; Chen, Xin; Liu, Hongsheng; Gao, Jufeng

doi:10.1039/d3cp03789d

Cited by 1 publication

(1 citation statement)

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“…Single-crystal metal nanoparticles formed via a two-part synthesis of nucleation and growth steps are well understood to produce monodisperse size distributions with strong shape control. − The one-pot two-part synthesis used here follows a previously published procedure with slight modifications to align with undergraduate laboratory expectations. , Briefly, solid and liquid reagents are combined with the reaction solvent in an air-free environment (Figure a) . Holding the reagents at an initial temperature of 200 °C cleaves the acetylacetone bonds in Fe(acac) 3 , allowing for nucleation of iron oxide sites.…”

Section: Methodsmentioning

confidence: 99%

Synthesis and Characterization of Superparamagnetic Iron Oxide Nanoparticles: A Series of Laboratory Experiments

Urbina,

Sridhara,

Scholtz

et al. 2024

J. Chem. Educ.

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The following laboratory procedure provides students with hands-on experience in nanomaterial chemistry and characterization. This three-day protocol is easy to follow for undergraduates with basic chemistry or materials science backgrounds and is suitable for inclusion in upper-division courses in inorganic chemistry or materials science. Students use air-free chemistry procedures to synthesize and separate iron oxide magnetic nanoparticles and subsequently modify the nanoparticle surface by using a chemical stripping agent. The morphology and chemical composition of the nanoparticles are characterized using electron microscopy and dynamic light scattering measurements. Additionally, magnetic characterization of the particles is performed using an inexpensive open-source (3D-printed) magnetophotometer. Possible modifications to the synthesis procedure, including the incorporation of dopants to modify the magnetic response and alternative characterization techniques, are discussed. The three-day synthesis, purification, and characterization laboratory will prepare students with crucial skills for advanced technology industries such as semiconductor manufacturing, nanomedicine, and green chemistry.

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Section: Methodsmentioning

confidence: 99%

Synthesis and Characterization of Superparamagnetic Iron Oxide Nanoparticles: A Series of Laboratory Experiments

Urbina,

Sridhara,

Scholtz

et al. 2024

J. Chem. Educ.

View full text Add to dashboard Cite

show abstract

Regulation of saturation magnetization of magnetite by doping with group III elements

Abstract: The doping behavior of group III elements (Al, Ga, and In) depends on the concentration of dopants. Appropriate Ga and In doping concentrations can significantly increase the MS of Fe3O4.

Cited by 1 publication

References 44 publications

Synthesis and Characterization of Superparamagnetic Iron Oxide Nanoparticles: A Series of Laboratory Experiments

Synthesis and Characterization of Superparamagnetic Iron Oxide Nanoparticles: A Series of Laboratory Experiments

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