Reversible thermoflocculation of magnetic core–shell particles induced by remote magnetic heating

Polymer ◽  
2010 ◽  
Vol 51 (13) ◽  
pp. 2818-2824 ◽  
Author(s):  
Thorsten Gelbrich ◽  
Gernot U. Marten ◽  
Annette M. Schmidt
Keyword(s):  
Magnetic Core ◽  
Core Shell ◽  
Magnetic Heating ◽  
Shell Particles

scholarly journals Catalytic Performance of a Magnetic Core-Shell Iron(II) C-Scorpionate under Unconventional Oxidation Conditions

Nanomaterials ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 2111
Author(s):  
Inês A. S. Matias ◽  
Ana P. C. Ribeiro ◽  
Ana M. Ferraria ◽  
Ana M. Botelho do Rego ◽  
Luísa M. D. R. S. Martins
Keyword(s):  
Alternative Energy ◽  
Alcohol Oxidation ◽  
Catalytic Performance ◽  
Magnetic Core ◽  
Core Shell ◽  
Secondary Alcohols ◽  
Alternative Energy Sources ◽  
Metallic Complex ◽  
Shell Particles ◽  
First Time

For the first time, herein is reported the use of a magnetic core-shell support for a C-scorpionate metallic complex. The prepared hybrid material, that consists on the C-scorpionate iron(II) complex [FeCl2{κ3-HC(pz)3}] (pz, pyrazolyl) immobilized at magnetic core-shell particles (Fe3O4/TiO2), was tested as catalyst for the oxidation of secondary alcohols using the model substrate 1-phenylethanol. Moreover, the application of alternative energy sources (e.g., ultrasounds, microwaves, mechanical or thermal) for the peroxidative alcohol oxidation using the magnetic heterogenized iron(II) scorpionate led to different/unusual outcomes that are presented and discussed.

Template-assisted nano-patterning of magnetic core–shell particles in gradient fields

2014 ◽  
Vol 16 (26) ◽  
pp. 13306-13317 ◽  
Author(s):  
Xiaozheng Xue ◽  
Edward P. Furlani
Keyword(s):  
Magnetic Core ◽  
Core Shell ◽  
Soft Magnetic ◽  
Gradient Fields ◽  
Shell Particles ◽  
Feature Resolution ◽  
Nano Patterning

Controlling the assembly of colloidal magnetic core–shell particles into patterned monolayer structures with nanoscale feature resolution using soft-magnetic template elements.

Fabrication of magnetic core shell particles coated with phenylalanine imprinted polymer

2019 ◽  
Vol 75 ◽  
pp. 262-269 ◽  
Author(s):  
Saba Gul ◽  
Nasrullah Shah ◽  
Muhammad Balal Arain ◽  
Nida Rahman ◽  
Touseef Rehan ◽  
...  
Keyword(s):  
Magnetic Core ◽  
Core Shell ◽  
Imprinted Polymer ◽  
Shell Particles

Magnetic Core-Shell Particles: Preparation of Magnetite Multilayers on Polymer Latex Microspheres

1999 ◽  
Vol 11 (11) ◽  
pp. 950-953 ◽  
Author(s):  
Frank Caruso ◽  
Andrei S. Susha ◽  
Michael Giersig ◽  
Helmuth Möhwald
Keyword(s):  
Magnetic Core ◽  
Core Shell ◽  
Shell Particles ◽  
Polymer Latex

Magnetic Properties of Fe3O4/CoFe2O4 Composite Nanoparticles with Core/Shell Architecture

2020 ◽  
Vol 65 (10) ◽  
pp. 904
Author(s):  
V. O. Zamorskyi ◽  
Ya. M. Lytvynenko ◽  
A. M. Pogorily ◽  
A. I. Tovstolytkin ◽  
S. O. Solopan ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Spinel Ferrite ◽  
Composite Nanoparticles ◽  
Core Shell ◽  
Cofe2o4 Nanoparticles ◽  
Core Diameter ◽  
The Core ◽  
Shell Particles ◽  
Interface Parameters ◽  
Shell Composite

Magnetic properties of the sets of Fe3O4(core)/CoFe2O4(shell) composite nanoparticles with a core diameter of about 6.3 nm and various shell thicknesses (0, 1.0, and 2.5 nm), as well as the mixtures of Fe3O4 and CoFe2O4 nanoparticles taken in the ratios corresponding to the core/shell material contents in the former case, have been studied. The results of magnetic research showed that the coating of magnetic nanoparticles with a shell gives rise to the appearance of two simultaneous effects: the modification of the core/shell interface parameters and the parameter change in both the nanoparticle’s core and shell themselves. As a result, the core/shell particles acquire new characteristics that are inherent neither to Fe3O4 nor to CoFe2O4. The obtained results open the way to the optimization and adaptation of the parameters of the core/shell spinel-ferrite-based nanoparticles for their application in various technological and biomedical domains.

scholarly journals Fabrication of copper(II)-coated magnetic core-shell nanoparticles Fe3O4@SiO2-2-aminobenzohydrazide and investigation of its catalytic application in the synthesis of 1,2,3-triazole compounds

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
H. Rajabi-Moghaddam ◽  
M. R. Naimi-Jamal ◽  
M. Tajbakhsh
Keyword(s):  
High Efficiency ◽  
Click Reaction ◽  
Magnetic Core ◽  
Core Shell ◽  
Isatoic Anhydride ◽  
Shell Nanoparticles ◽  
Triazole Derivatives ◽  
Catalytic Application ◽  
Ft Ir ◽  
Core Shell Nanoparticles

AbstractIn the present work, an attempt has been made to synthesize the 1,2,3-triazole derivatives resulting from the click reaction, in a mild and green environment using the new copper(II)-coated magnetic core–shell nanoparticles Fe3O4@SiO2 modified by isatoic anhydride. The structure of the catalyst has been determined by XRD, FE-SEM, TGA, VSM, EDS, and FT-IR analyzes. The high efficiency and the ability to be recovered and reused for at least up to 6 consecutive runs are some superior properties of the catalyst.

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