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Gram scale synthesis of Fe/FexOy core–shell nanoparticles and their incorporation into matrix-free superparamagnetic nanocomposites

Journal Article · · Journal of Materials Research
DOI:https://doi.org/10.1557/jmr.2018.139· OSTI ID:1444097
In this paper, significant reductions recently seen in the size of wide-bandgap power electronics have not been accompanied by a relative decrease in the size of the corresponding magnetic components. To achieve this, a new generation of materials with high magnetic saturation and permeability are needed. Here, we develop gram-scale syntheses of superparamagnetic Fe/FexOy core–shell nanoparticles and incorporate them as the magnetic component in a strongly magnetic nanocomposite. Nanocomposites are typically formed by the organization of nanoparticles within a polymeric matrix. However, this approach can lead to high organic fractions and phase separation; reducing the performance of the resulting material. Here, we form aminated nanoparticles that are then cross-linked using epoxy chemistry. The result is a magnetic nanoparticle component that is covalently linked and well separated. By using this ‘matrix-free’ approach, we can substantially increase the magnetic nanoparticle fraction, while still maintaining good separation, leading to a superparamagnetic nanocomposite with strong magnetic properties.
Research Organization:
Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
AC04-94AL85000
OSTI ID:
1444097
Report Number(s):
SAND--2018-5581J; 663407
Journal Information:
Journal of Materials Research, Journal Name: Journal of Materials Research Journal Issue: 15 Vol. 33; ISSN 0884-2914
Publisher:
Materials Research SocietyCopyright Statement
Country of Publication:
United States
Language:
English

References (48)

Facile Synthesis of Monodisperse Superparamagnetic Fe3O4 Core@hybrid@Au Shell Nanocomposite for Bimodal Imaging and Photothermal Therapy journal October 2011
3D-Printing of Lightweight Cellular Composites journal June 2014
Reversible Magnetic Agglomeration: A Mechanism for Thermodynamic Control over Nanoparticle Size journal April 2018
Synthesis of Monodisperse Spherical Nanocrystals journal June 2007
Reversible Magnetic Agglomeration: A Mechanism for Thermodynamic Control over Nanoparticle Size journal April 2018
Highly scalable nanoparticle-polymer composite fiber via wet spinning journal May 2013
Iron-Catalyzed Reactions in Organic Synthesis journal April 2005
Synthesis, Properties, and Applications of Iron Nanoparticles journal November 2005
Synthesis of Monodisperse Spherical Nanocrystals journal August 2007
Implication of Ligand Choice on Surface Properties, Crystal Structure, and Magnetic Properties of Iron Nanoparticles journal February 2013
Synthesis, Properties, and Applications of Iron Nanoparticles journal May 2005
Synthesis and characterization of novel covalently linked waterborne polyurethane/Fe 3 O 4 nanocomposite films with superior magnetic, conductive properties and high latex storage stability journal February 2016
Magnetic nanocomposites journal June 2016
Multifunctional pH-sensitive superparamagnetic iron-oxide nanocomposites for targeted drug delivery and MR imaging journal August 2013
Synthesis and application of epoxy resins: A review journal September 2015
Broadband magnetic losses of nanocrystalline ribbons and powder cores journal December 2016
Synthesis and magnetic properties of FePt nanocomposite magnets via self-assembled block copolymer templates journal May 2016
Thermo-mechanical behaviors of epoxy resins reinforced with silane-epoxide functionalized α-Fe2O3 nanoparticles journal August 2014
High performance polymer nanocomposites for additive manufacturing applications journal June 2016
Fluorometric determination of secondary amines based on their reaction with fluorescamine journal November 1980
Stabilized, Superparamagnetic Functionalized Graphene/Fe 3 O 4 @Au Nanocomposites for a Magnetically-Controlled Solid-State Electrochemiluminescence Biosensing Application journal January 2015
Enhanced Nanoparticle Size Control by Extending LaMer’s Mechanism journal August 2015
Small Angle X-ray Scattering for Nanoparticle Research journal April 2016
Determination of Blocking Temperature in Magnetization and Mössbauer Time Scale: A Functional Form Approach journal July 2017
Thermal Decomposition Synthesis of Iron Oxide Nanoparticles with Diminished Magnetic Dead Layer by Controlled Addition of Oxygen journal February 2017
Magnetic Epoxy Resin Nanocomposites Reinforced with Core−Shell Structured Fe@FeO Nanoparticles: Fabrication and Property Analysis journal June 2010
Polyaniline Stabilized Magnetite Nanoparticle Reinforced Epoxy Nanocomposites journal September 2012
Modified Superparamagnetic Nanocomposite Microparticles for Highly Selective Hg II or Cu II Separation and Recovery from Aqueous Solutions journal September 2012
Iron-Catalyzed Reactions in Organic Synthesis journal December 2004
Superparamagnetic Nanocomposites Based on the Dispersion of Oleic Acid-Stabilized Magnetite Nanoparticles in a Diglycidylether of Bisphenol A-Based Epoxy Matrix: Magnetic Hyperthermia and Shape Memory journal June 2012
Water-Soluble Iron Oxide Nanoparticles with High Stability and Selective Surface Functionality journal July 2011
Theory of Phase Separation in Polymer Nanocomposites journal July 2006
Cross-Linked “Matrix-Free” Nanocomposites from Reactive Polymer−Silica Hybrid Nanoparticles journal August 2010
Covalent Incorporation of Aminated Nanodiamond into an Epoxy Polymer Network journal August 2011
Thermal surface free energy and stress of iron journal October 2015
Non-volatile iron carbonyls as versatile precursors for the synthesis of iron-containing nanoparticles journal January 2017
Reduction of supported iron oxide studied by temperature-programmed reduction combined with mössbauer spectroscopy and X-ray diffraction journal January 1993
“Exact” surface free energies of iron surfaces using a modified embedded atom method potential and λ integration journal February 2004
Alternate current magnetic property characterization of nonstoichiometric zinc ferrite nanocrystals for inductor fabrication via a solution based process journal March 2016
Core loss and magnetic susceptibility of superparamagnetic Fe nanoparticle assembly journal December 2016
Nanocomposite Materials from Functional Polymers and Magnetic Colloids journal April 2007
Multipole interaction of polarized single-domain particles journal November 2004
Extended LaMer Synthesis of Cobalt-Doped Ferrite journal January 2018
Carbonyl-Iron/Epoxy Composite Magnetic Core for Planar Power Inductor Used in Package-Level Power Grid journal July 2013
Magnetic Properties of Nickel–Zinc Ferrite Toroids Prepared from Nanoparticles journal November 2007
The effect of needle gauge, needle type, and needle orientation on the volume of a drop journal January 2015
Superparamagnetism and Other Magnetic Features in Granular Materials: A Review on Ideal and Real Systems journal June 2008
Fluorescence of Aromatic Amines and Their Fluorescamine Derivatives for Detection of Explosive Vapors journal September 2006

Cited By (1)

Finite element modeling of nanoscale-enabled microinductors for power electronics journal August 2018

Figures / Tables (11)


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