Thermomagnetic studies of thermoexfoliated graphite-transition metal composites

Thermal stability and magnetic susceptibility of thermoexfoliated graphite-metal (TEG-Me) composites have been investigated in the temperature range 300-850 K. The TEG-Me (Co, Ni) composites have been produced by the metal cation reduction in aqueous medium with sodium tetrahydroborate. The structur...

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Datum:2007
Hauptverfasser: Vovchenko, L.L., Babich, M.G., Zakharenko, M.I., Brusilovets, A.I., Kapitanchuk, L.M.
Format: Artikel
Sprache:English
Veröffentlicht: НТК «Інститут монокристалів» НАН України 2007
Schriftenreihe:Functional Materials
Online Zugang:https://nasplib.isofts.kiev.ua/handle/123456789/136988
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Назва журналу:Digital Library of Periodicals of National Academy of Sciences of Ukraine
Zitieren:Thermomagnetic studies of thermoexfoliated graphite-transition metal composites / L.L. Vovchenko, M.G. Babich, M.I. Zakharenko, A.I. Brusilovets, L.M. Kapitanchuk // Functional Materials. — 2007. — Т. 14, № 3. — С. 378-381. — Бібліогр.: 7 назв. — англ.

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spelling nasplib_isofts_kiev_ua-123456789-1369882025-02-09T20:21:00Z Thermomagnetic studies of thermoexfoliated graphite-transition metal composites Термомагнітні дослідження композитів терморозширення графіт-перехідний метал Vovchenko, L.L. Babich, M.G. Zakharenko, M.I. Brusilovets, A.I. Kapitanchuk, L.M. Thermal stability and magnetic susceptibility of thermoexfoliated graphite-metal (TEG-Me) composites have been investigated in the temperature range 300-850 K. The TEG-Me (Co, Ni) composites have been produced by the metal cation reduction in aqueous medium with sodium tetrahydroborate. The structure and phase composition of the products was characterized using X-ray diffraction, scanning electron microscopy, Auger electron spectroscopy and secondary ion mass spectrometry. The results of these investigations show that the metal in the green composites must exist in the bound state as Me—B and Me—H. The gradual heating (up to 850 K) or annealing (at 825 K) of the TEG-Me composites results in the appearance of ferromagnetic properties. Thermal cycling of TEG-Me composites results in a decreased magnetic susceptibility due to oxidation of metallic particles. 2007 Article Thermomagnetic studies of thermoexfoliated graphite-transition metal composites / L.L. Vovchenko, M.G. Babich, M.I. Zakharenko, A.I. Brusilovets, L.M. Kapitanchuk // Functional Materials. — 2007. — Т. 14, № 3. — С. 378-381. — Бібліогр.: 7 назв. — англ. 1027-5495 https://nasplib.isofts.kiev.ua/handle/123456789/136988 en Functional Materials application/pdf НТК «Інститут монокристалів» НАН України
institution Digital Library of Periodicals of National Academy of Sciences of Ukraine
collection DSpace DC
language English
description Thermal stability and magnetic susceptibility of thermoexfoliated graphite-metal (TEG-Me) composites have been investigated in the temperature range 300-850 K. The TEG-Me (Co, Ni) composites have been produced by the metal cation reduction in aqueous medium with sodium tetrahydroborate. The structure and phase composition of the products was characterized using X-ray diffraction, scanning electron microscopy, Auger electron spectroscopy and secondary ion mass spectrometry. The results of these investigations show that the metal in the green composites must exist in the bound state as Me—B and Me—H. The gradual heating (up to 850 K) or annealing (at 825 K) of the TEG-Me composites results in the appearance of ferromagnetic properties. Thermal cycling of TEG-Me composites results in a decreased magnetic susceptibility due to oxidation of metallic particles.
format Article
author Vovchenko, L.L.
Babich, M.G.
Zakharenko, M.I.
Brusilovets, A.I.
Kapitanchuk, L.M.
spellingShingle Vovchenko, L.L.
Babich, M.G.
Zakharenko, M.I.
Brusilovets, A.I.
Kapitanchuk, L.M.
Thermomagnetic studies of thermoexfoliated graphite-transition metal composites
Functional Materials
author_facet Vovchenko, L.L.
Babich, M.G.
Zakharenko, M.I.
Brusilovets, A.I.
Kapitanchuk, L.M.
author_sort Vovchenko, L.L.
title Thermomagnetic studies of thermoexfoliated graphite-transition metal composites
title_short Thermomagnetic studies of thermoexfoliated graphite-transition metal composites
title_full Thermomagnetic studies of thermoexfoliated graphite-transition metal composites
title_fullStr Thermomagnetic studies of thermoexfoliated graphite-transition metal composites
title_full_unstemmed Thermomagnetic studies of thermoexfoliated graphite-transition metal composites
title_sort thermomagnetic studies of thermoexfoliated graphite-transition metal composites
publisher НТК «Інститут монокристалів» НАН України
publishDate 2007
url https://nasplib.isofts.kiev.ua/handle/123456789/136988
citation_txt Thermomagnetic studies of thermoexfoliated graphite-transition metal composites / L.L. Vovchenko, M.G. Babich, M.I. Zakharenko, A.I. Brusilovets, L.M. Kapitanchuk // Functional Materials. — 2007. — Т. 14, № 3. — С. 378-381. — Бібліогр.: 7 назв. — англ.
series Functional Materials
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AT zakharenkomi thermomagneticstudiesofthermoexfoliatedgraphitetransitionmetalcomposites
AT brusilovetsai thermomagneticstudiesofthermoexfoliatedgraphitetransitionmetalcomposites
AT kapitanchuklm thermomagneticstudiesofthermoexfoliatedgraphitetransitionmetalcomposites
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AT brusilovetsai termomagnítnídoslídžennâkompozitívtermorozširennâgrafítperehídniimetal
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