Synthesis of core–shell iron nanoparticles from decomposition of Fe–Sn nanocomposite and studies on their microwave absorption properties

Gupta, Vatsana; Patra, Manoj Kumar; Shukla, Anuj; Saini, Lokesh; Songara, Sandhya; Jani, Rajkumar; Vadera, Sampat Raj; Kumar, Narendra

doi:10.1007/s11051-012-1271-0

Cited by 16 publications

(4 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Nowadays, electromagnetic (EM) wave absorption polymer composite materials have received much attention due to their wide applications for many electromagnetic compatibility (EMC) intentions [1][2][3][4][5][6][7][8]. Polymer composite materials have more suitable mechanical properties then ceramic composite.…”

Section: Introductionmentioning

confidence: 99%

Effect of magnetic field treatment on the electromagnetic properties of polymer composite based on barium hexaferrite at microwave frequencies

Dotsenko¹,

Suslyaev²,

Frolov³

et al. 2016

AIP Conference Proceedings

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

Effect of magnetic field treatment on the electromagnetic properties of polymer composite based on barium hexaferrite at microwave frequencies

Dotsenko¹,

Suslyaev²,

Frolov³

et al. 2016

AIP Conference Proceedings

View full text Add to dashboard Cite

“…However, each of these methods has particular advantages and disadvantages comparing to our method for synthesis of CEINPs. Until now, all reported studies have been only on monoiron nanoparticles and the synthesis of multi-iron core at carbon shell has not yet been reported [37][38][39][40][41][42][43][44][45][46][47].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Carbon Encapsulated Mono‐ and Multi‐Iron Nanoparticles

Sanaee

Bertran

2015

Journal of Nanomaterials

View full text Add to dashboard Cite

Core–shell nanostructures of carbon encapsulated iron nanoparticles (CEINPs) show unique properties and technological applications, because carbon shell provides extreme chemical stability and protects pure iron core against oxidation without impairing the possibility of functionalization of the carbon surface. Enhancing iron core magnetic properties and, in parallel, improving carbon shell sealing are the two major challenges in the synthesis of CEINPs. Here, we present the synthesis of both CEINPs and a new carbon encapsulated multi-iron nanoparticle by a new modified arc discharge reactor. The nanoparticle size, composition, and crystallinity and the magnetic properties have been studied. The morphological properties were observed by scanning electron microscopy and transmission electron microscopy. In order to evaluate carbon shell protection, the iron cores were characterized by selected area diffraction and fast Fourier transform techniques as well as by electron energy loss and energy dispersive X-ray spectroscopies. Afterward, the magnetic properties were investigated using a superconducting quantum interference device. As main results, spherical, oval, and multi-iron cores were controllably synthesized by this new modified arc discharge method. The carbon shell with high crystallinity exhibited sufficient protection against oxidation of pure iron cores. The presented results also provided new elements for understanding the growth mechanism of iron core and carbon shell.

show abstract

“…In addition, to be prone to oxidation and corrosion of alloy particles will be a headache for a long-time application. To cope with these problems, people usually coat the alloy particles with high resistive substances which are not ferromagnetic, for instance SiO 2 [2], [8]. However, not only the non-ferromagnetic substances will bring about an increase in thickness of an absorber, but also large decreases in permeability values and accordingly worsening the microwave absorption property.…”

Section: Introductionmentioning

confidence: 99%

Enhancing the Microwave Absorption Properties of Fe–Cu–Nb–Si–B Nanocomposite Flakes by Coating With Spinel Ferrite NiFe₂O₄

Han

Deng

2015

IEEE Trans. Magn.

View full text Add to dashboard Cite

Fe-Cu-Nb-Si-B nono-composite flakes have been coated with spinel ferrite NiFe 2 O 4 by a low-temperature chemical deposition. Compared to the uncoated alloy flakes, the complex permittivity of coated flakes decreases dramatically, while the permeability decreases to some extent. Such a large decrease of the complex permittivity has been studied by investigating the microstructure of the coated flakes. Furthermore, it is believed that such coating treatments result in a better impedance matching. For coated flakes, the reflection losses (less than -10 dB) can be achieved within 0.7 ~ 4.8 GHz for a composite with the thicknesses varying between 1.95 and 10 mm. However, for composites containing uncoated flakes, their reflection losses (RL) values almost cannot be less than -10 dB. Moreover, the matching characteristics have been compared for both kinds of flakes. The obvious enhancement in microwave absorption properties of the coated flakes can be attributed to the improvement in impedance matching.

show abstract

Synthesis of core–shell iron nanoparticles from decomposition of Fe–Sn nanocomposite and studies on their microwave absorption properties

Cited by 16 publications

References 26 publications

Effect of magnetic field treatment on the electromagnetic properties of polymer composite based on barium hexaferrite at microwave frequencies

Effect of magnetic field treatment on the electromagnetic properties of polymer composite based on barium hexaferrite at microwave frequencies

Synthesis of Carbon Encapsulated Mono‐ and Multi‐Iron Nanoparticles

Enhancing the Microwave Absorption Properties of Fe–Cu–Nb–Si–B Nanocomposite Flakes by Coating With Spinel Ferrite NiFe₂O₄

Contact Info

Product

Resources

About

Synthesis of core–shell iron nanoparticles from decomposition of Fe–Sn nanocomposite and studies on their microwave absorption properties

Cited by 16 publications

References 26 publications

Effect of magnetic field treatment on the electromagnetic properties of polymer composite based on barium hexaferrite at microwave frequencies

Effect of magnetic field treatment on the electromagnetic properties of polymer composite based on barium hexaferrite at microwave frequencies

Synthesis of Carbon Encapsulated Mono‐ and Multi‐Iron Nanoparticles

Enhancing the Microwave Absorption Properties of Fe–Cu–Nb–Si–B Nanocomposite Flakes by Coating With Spinel Ferrite NiFe2O4

Contact Info

Product

Resources

About

Enhancing the Microwave Absorption Properties of Fe–Cu–Nb–Si–B Nanocomposite Flakes by Coating With Spinel Ferrite NiFe₂O₄