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Royal Society of Chemistry, Dalton Transactions, 18(41), p. 5517

DOI: 10.1039/c2dt11916a

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

Journal article published in 2012 by S. Diodati, L. Nodari ORCID, M. M. Natile, U. Russo, E. Tondello, L. Lutterotti, S. Gross ORCID
This paper is available in a repository.
This paper is available in a repository.

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Abstract

The synthesis of strontium ferrite SrFeO3-delta 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 Mssbauer spectroscopy.