Hybrid materials based on polymethylsilsesquioxanes containing Fe, Pt, and Fe–Pt metallic nanoparticles

New hybrid materials based on Pt, Fe, and Pt–Fe nanoparticles stabilized in a matrix of polymethylsilsesquioxane nanogel and ultrahigh molecular weight polyethylene (UHMWPE) were prepared. Metal vapor synthesis was used to produce mono- and bimetallic nanoparticles. It was shown that organosilicon n...

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Bibliographic Details
Published in:Russian Journal of Physical Chemistry A 2017-11, Vol.91 (11), p.2188-2194
Main Authors: Vasil’kov, A. Yu, Migulin, D. A., Naumkin, A. V., Zubavichus, Ya. V., Budnikov, A. V., Ellert, O. G., Maksimov, Yu. V., Muzafarov, A. M.
Format: Article
Language:English
Subjects:
Antiferromagnetism
Bimetals
Chemical synthesis
Chemistry
Chemistry and Materials Science
Electron microscopy
Ferromagnetism
Iron
Nanocomposites
Nanoparticles
Particle size
Particle size distribution
Photoelectron spectroscopy
Physical Chemistry
Physical Chemistry of Nanoclusters and Nanomaterials
Platinum
Spectrum analysis
Transmission electron microscopy
Ultra high molecular weight polyethylene
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Summary:New hybrid materials based on Pt, Fe, and Pt–Fe nanoparticles stabilized in a matrix of polymethylsilsesquioxane nanogel and ultrahigh molecular weight polyethylene (UHMWPE) were prepared. Metal vapor synthesis was used to produce mono- and bimetallic nanoparticles. It was shown that organosilicon nanogel effectively stabilizes Pt nanoparticles with an average size of 0.9 nm. Using the nanogel results in the formation of superparamagnetic Fe particles 3–5 nm in size that consist of ferromagnetic Fe 0 core and antiferromagnetic shells of Fe oxides. It is established that using an organosilicon matrix in the formation of Pt-Fe/UHMWPE systems helps reduce the average particle size of Fe in the material from 6.5 to 4.5 nm and narrow their particle size distribution. The composition, magnetic and electronic characteristics of the nanocomposites are studied via transmission electron microscopy, X-ray photoelectron spectroscopy, Mössbauer spectroscopy, XANES, and EXAFS.
ISSN:0036-0244
1531-863X
DOI:10.1134/S0036024417110310