J
2014
epsilon-Fe2O3 nanoparticles synthesized in atmospheric-pressure microwave torch
DAVID, Bohumil, Naděžda PIZÚROVÁ, Petr SYNEK, Vít KUDRLE, Ondřej JAŠEK et. al.
Basic information
Original name
epsilon-Fe2O3 nanoparticles synthesized in atmospheric-pressure microwave torch
Authors
DAVID, Bohumil (203 Czech Republic), Naděžda PIZÚROVÁ (203 Czech Republic), Petr SYNEK (203 Czech Republic, guarantor, belonging to the institution), Vít KUDRLE (203 Czech Republic, belonging to the institution), Ondřej JAŠEK (203 Czech Republic, belonging to the institution) and Oldřich SCHNEEWEISS (203 Czech Republic)
Edition
Materials Letters, Amsterdam, Holandsko, Elsevier Science, 2014, 0167-577X
Other information
Type of outcome
Článek v odborném periodiku
Field of Study
Plasma physics and discharge through gases
Country of publisher
Netherlands
Confidentiality degree
není předmětem státního či obchodního tajemství
RIV identification code
RIV/00216224:14740/14:00073662
Organization
Středoevropský technologický institut – Repository – Repository
Keywords in English
epsilon-Fe2O3; Nanoparticles; Microwave plasma; Mössbauer spectroscopy
Links
ED1.1.00/02.0068, research and development project. ED2.1.00/03.0086, research and development project. GAP205/10/1374, research and development project. GA202/08/0178, research and development project.
V originále
The article reports on epsilon-Fe2O3 nanoparticles synthesized in a single step by atmospheric-pressure microwave torch discharge using gaseous precursors only. Morphology and composition of the as-synthesized nanopowder were studied by HR-TEM, XRD, and Mossbauer spectroscopy. In the studied nanopowder, epsilon-Fe2O3 phase (d(xRD)=25 nm, 32 wt%) together with alpha-Fe2O3 and gamma-Fe2O3 phases was found. The characteristic epsilon-Fe2O3 and alpha/gamma-Fe2O3 sextets in the Mossbauer spectra measured at 293 and 5 K confirmed the phase composition of the powder. Compared with the methods currently used for the synthesis of epsilon-Fe2O3 nanoparticles, atmospheric-pressure microwave torch discharge appears as a new synthesis route for obtaining epsilon-Fe2O3 nanoparticles. (C) 2013 Elsevier B.V. All rights reserved.
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