Issue 18, 2012

Highly crystalline strontium ferrites SrFeO3−δ: an easy and effective wet-chemistry synthesis

Abstract

The synthesis of strontium ferrite SrFeO3−δ has been explored through wet-chemistry methods in order to optimize a quick, easy and reproducible method to obtain the perovskite in pure crystalline form with a high yield. Among the three investigated synthetic paths, (i) coprecipitation of hydroxides, (ii) coprecipitation of oxalates and (iii) polyol-assisted coprecipitation, only the second one was effective in obtaining the desired perovskite modification as a single phase. The products were analyzed by means of powder X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS), to determine the crystalline structure and the chemical composition of the sample surface, respectively, and to optimise the synthetic process. Pure samples were further characterised by means of inductively coupled plasma (ICP-AES) analysis, nitrogen adsorption, elemental analysis, temperature programmed reduction (TPR) and Mössbauer spectroscopy.

Graphical abstract: Highly crystalline strontium ferrites SrFeO3−δ: an easy and effective wet-chemistry synthesis

Supplementary files

Article information

Article type
Paper
Submitted
11 Oct 2011
Accepted
25 Jan 2012
First published
05 Mar 2012

Dalton Trans., 2012,41, 5517-5525

Highly crystalline strontium ferrites SrFeO3−δ: an easy and effective wet-chemistry synthesis

S. Diodati, L. Nodari, M. M. Natile, U. Russo, E. Tondello, L. Lutterotti and S. Gross, Dalton Trans., 2012, 41, 5517 DOI: 10.1039/C2DT11916A

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