Fe-C nanoparticles obtained from thermal decomposition employing sugars as reducing agents

Magnetic Hyperthermia Enhancement in Iron‐based Materials Driven by Carbon Support Interactions

“…The higher SAR values of Fe 3 C@C/CNF AC (i. e., 299 W g Fe −1 at 250 kHz and 24 kA m −1 , Figure 5) in comparison to Fe 3 C@C/CNF (i. e., 253 W g Fe −1 at 250 kHz and 24 kA m −1 , Figure 5) indicate the correlation between SAR and their structure. Its enhanced performance is due to the small particle size, which is related to a smaller amount of multidomain particles that could reduce the SAR efficiency, and the presence of α‐Fe phase in the core of the particles (Fe 3 C@C/CNF AC ), since the magnetization of bulk α‐Fe (220 emu g −1 ) is higher than Fe 3 C (140 emu g −1 ) [40] …”

“…Its enhanced performance is due to the small particle size, which is related to a smaller amount of multidomain particles that could reduce the SAR efficiency, and the presence of α-Fe phase in the core of the particles (Fe 3 C@C/CNF AC ), since the magnetization of bulk α-Fe (220 emu g À 1 ) is higher than Fe 3 C (140 emu g À 1 ). [40] To reduce the negative effect of the larger oxidized nanoparticles, Fe 3 C@C/CNF AC was purified by acid treatment in a HCl aqueous solution to dissolve the unprotected nanoparticles. The iron content of the resultant material (Fe 3 C@C/CNF AC _HCl) decreased from 69.3 to 5.3 % as observed in TGA measurements (Figure S15), while CV and TEM measurements reveal that only small and protected particles remain in the material (Fig-ure S16a-c).…”

Magnetic Molecularly Imprinted Polymers: Synthesis and Applications in the Selective Extraction of Antibiotics

“…A multitude of synthetic routes have been established for preparing MNPs, such as co-precipitation, thermal decomposition, microemulsion synthesis, solvothermal/hydrothermal synthesis, sol-gel synthesis, flow injection syntheses, and microwave-assisted synthesis ( Salazar-Alvarez et al, 2006 ; Xia et al, 2011 ; Mahdavi et al, 2013 ; Tong et al, 2015 ; Dinc et al, 2019 ; Nguyen et al, 2020 ; Cervera et al, 2021 ; Mohammadi Badizi and Maleki, 2021 ; Saladino et al, 2021 ; Salvador et al, 2021 ). Co-precipitation and solvothermal methods are the most popular approaches to acquire high-quality MNPs.…”

Multilayer Graphene Encapsulation on the Fe Nanoparticles Starting from Fe Chloride Precursors

“…The interest of the magnetic nanoparticles has increased due to their various application fields [1,2]. Magnetic iron nanoparticles were used as drug or gene delivery agents at cancer treatments like hyperthermia, diseases detections and imaging studies such as magnetic resonance imaging [1,3,4]. Not only biomedical applications, but also iron based magnetic nanoparticles are desired materials for catalytic applications, waste water treatment and electronic utilizations (supercapacitors, batteries etc.)…”

“…Not only biomedical applications, but also iron based magnetic nanoparticles are desired materials for catalytic applications, waste water treatment and electronic utilizations (supercapacitors, batteries etc.) [1]. Magnetic nanoparticles must be resisted to oxidation and high temperatures for various engineering applications.…”