epsilon-Fe2O3 nanoparticles synthesized in atmospheric-pressure microwave torch
| Authors | |
|---|---|
| Year of publication | 2014 |
| Type | Article in Periodical |
| Magazine / Source | Materials Letters |
| MU Faculty or unit | |
| Citation | |
| Web | http://ac.els-cdn.com/S0167577X13015838/1-s2.0-S0167577X13015838-main.pdf?_tid=94a14ace-cd43-11e4-958b-00000aacb360&acdnat=1426665266_399e607ceb9d6ceca572da648f05aba9 |
| Doi | http://dx.doi.org/10.1016/j.matlet.2013.11.057 |
| Field | Plasma physics |
| Keywords | epsilon-Fe2O3; Nanoparticles; Microwave plasma; Mössbauer spectroscopy |
| Attached files | |
| Description | 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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