Microwave-assisted synthesis and characterization of hexagonal Fe3O4 nanoplates

Controlled synthesis of Fe3O4 nanosheets via one-step pyrolysis of EDTA ferric sodium salt

“…Finally, Fe 3 O 4 was formed in the reductive atmosphere. Sodium carboxylate is a well-known protective agent for the synthesis of Fe 3 O 4 and prominently affects the shape of the final products [49,50]. During the pyrolysis process, irregular Fe 3 O 4 powders were formed and then NCs grow up with the increase of reaction time.…”

Rational Design of Fe1−xS/Fe3O4/Nitrogen and Sulfur‐Doped Porous Carbon with Enhanced Oxygen Reduction Reaction Catalytic Activity

“…As for PPFeC‐800, the presence of Fe 3 O 4 nanocrystals (JCPDS No. 19‐0629) was proved by its XRD pattern and the lattice fringe distance of 0.25 nm labeled in Figure g, which corresponds to the (311) crystal plane of Fe 3 O 4 . The formation of Fe 3 O 4 probably results from the oxidization of Fe species on the surface.…”

Facile green synthesis of nanomagnets for modulating magnetohyperthermia: tailoring size, shape and phase

“…22 However, in conventional co-precipitation routes, reaction pathways leading to production of the magnetite phase are not fully understood and magnetite nanoparticles are crystallized in a quasi-immediate process at room temperature, normally as polydisperse and nearly spherical structures, making the shape control a very hard task. 23 In this way, aiming to establish protocols for better controlling the nanoparticles' morphology, several adaptations to the conventional coprecipitation route had been proposed, such as magnetic eld-assisted, 24 ultrasound-assisted, 25 microwave-assisted, 26 hydrothermal, 27,28 polyol-mediated, 29,30 sol-gel 31 and templated growth 32 as well as reactions in constrained environments 33 and seed-mediated (followed by calcination) processes. 34 Among these adaptations, co-precipitation from homogeneous solutions using urea was utilized as an interesting tool for elaboration of shape-controlled magnetite nanoparticles.…”