Preparation of SrVO3 by annealing of Sr2V2O7 in a reducing atmosphere

Edward Lee; Richard A. Harris; Jacobus J. Terblans; Elizabeth Coetsee; Vinay Kumar; Hendrik C. Swart

Chemical Physics Impact (Dec 2024)

Preparation of SrVO3 by annealing of Sr2V2O7 in a reducing atmosphere

Edward Lee,
Richard A. Harris,
Jacobus J. Terblans,
Elizabeth Coetsee,
Vinay Kumar,
Hendrik C. Swart

Affiliations

Edward Lee: Department of Physics, University of the Free State, P.O. Box 339, Bloemfontein, ZA 9300, South Africa.; Corresponding author.
Richard A. Harris: Department of Physics, University of the Free State, P.O. Box 339, Bloemfontein, ZA 9300, South Africa.
Jacobus J. Terblans: Department of Physics, University of the Free State, P.O. Box 339, Bloemfontein, ZA 9300, South Africa.
Elizabeth Coetsee: Department of Physics, University of the Free State, P.O. Box 339, Bloemfontein, ZA 9300, South Africa.
Vinay Kumar: Department of Physics, University of the Free State, P.O. Box 339, Bloemfontein, ZA 9300, South Africa.; Department of Physics and Astronomical Sciences, Central University of Jammu, Rahya-Suchani, Samba, 181143 India
Hendrik C. Swart: Department of Physics, University of the Free State, P.O. Box 339, Bloemfontein, ZA 9300, South Africa.

Journal volume & issue: Vol. 9
p. 100715

Abstract

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This study focuses on the synthesis of SrVO3 through the reduction of Sr2V2O7 by annealing in a reducing atmosphere. The effects of annealing temperature and annealing duration on Sr2V2O7 were investigated. The X-ray powder diffraction pattern showed that stoichiometric changes to Sr2V2O7 were achieved only at an elevated annealing temperature of 1000 °C in a reducing atmosphere, and that the desired SrVO3 was obtained only after 144 h of annealing. Further investigation of SrVO3 was performed using X-ray photoelectron spectroscopy, which confirmed that the reduction of V5+ found in Sr2V2O7 to V4+ found in SrVO3 was achieved.

Published in Chemical Physics Impact

ISSN: 2667-0224 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Science: Physics; Science: Chemistry
Website: https://www.journals.elsevier.com/chemical-physics-impact/

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