Hydrothermal synthesis of NaxFexTi2-xO4 from natural ilmenite sand: A CaFe2O4 structure type compound

Marinković, Bojan A.; Mančić, Lidija; Jardim, Paula M.; Milošević, Olivera; Rizzo, Fernando

doi:10.1016/j.ssc.2007.12.006

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2008

Authors

Marinković, Bojan A.
Mančić, Lidija

Jardim, Paula M.

Milošević, Olivera

Rizzo, Fernando

Article (Published version)

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Abstract

NaxFexTi2-xO4 a compound from the CaFe2O4 structure type group, was obtained via hydrothermal route at a temperature lower than 200 {ring operator}C for the first time. Natural ilmenite sand, a low cost reagent, was used as a precursor and reacted with 10 mol/l NaOH for 70 h to obtained high yield (92% wt) of NaxFexTi2-xO4 with x ∼ 0.76 - 0.79, as evaluated through the Rietveld refinement and quantitative phase analysis of X-ray powder diffraction data. Transmission Electron Microscopy showed that NaxFexTi2-xO4 appears in submicron to micron crystals with well-defined facets, growing along the [001] crystallographic direction, which means that the tunnels, a peculiarity of this crystal structure, are oriented along the direction of growth. © 2007 Elsevier Ltd. All rights reserved.

Keywords:

CaFe2O4 structure type / hydrothermal synthesis / scanning electron microscopy / X-ray scattering / transmission electron microscopy

Source:
Solid State Communications, 2008, 145, 7-8, 346-350

Publisher:

Elsevier

Funding / projects:

Brazilian National Council for the Scientific and Technological Development (CNPq)
Ministry of Science and Environmental Protection of Serbia (post-doctoral scholarship)

DOI: 10.1016/j.ssc.2007.12.006

ISSN: 0038-1098

WoS: 000253434100005

Scopus: 2-s2.0-38649103482

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	7

TY  - JOUR
AU  - Marinković, Bojan A.
AU  - Mančić, Lidija
AU  - Jardim, Paula M.
AU  - Milošević, Olivera
AU  - Rizzo, Fernando
PY  - 2008
UR  - https://dais.sanu.ac.rs/123456789/3587
AB  - NaxFexTi2-xO4 a compound from the CaFe2O4 structure type group, was obtained via hydrothermal route at a temperature lower than 200  {ring operator}C for the first time. Natural ilmenite sand, a low cost reagent, was used as a precursor and reacted with 10 mol/l NaOH for 70 h to obtained high yield (92% wt) of NaxFexTi2-xO4 with x ∼ 0.76 - 0.79, as evaluated through the Rietveld refinement and quantitative phase analysis of X-ray powder diffraction data. Transmission Electron Microscopy showed that NaxFexTi2-xO4 appears in submicron to micron crystals with well-defined facets, growing along the [001] crystallographic direction, which means that the tunnels, a peculiarity of this crystal structure, are oriented along the direction of growth. © 2007 Elsevier Ltd. All rights reserved.
PB  - Elsevier
T2  - Solid State Communications
T1  - Hydrothermal synthesis of NaxFexTi2-xO4 from natural ilmenite sand: A CaFe2O4 structure type compound
SP  - 346
EP  - 350
VL  - 145
IS  - 7-8
DO  - 10.1016/j.ssc.2007.12.006
UR  - https://hdl.handle.net/21.15107/rcub_dais_3587
ER  -

@article{
author = "Marinković, Bojan A. and Mančić, Lidija and Jardim, Paula M. and Milošević, Olivera and Rizzo, Fernando",
year = "2008",
abstract = "NaxFexTi2-xO4 a compound from the CaFe2O4 structure type group, was obtained via hydrothermal route at a temperature lower than 200  {ring operator}C for the first time. Natural ilmenite sand, a low cost reagent, was used as a precursor and reacted with 10 mol/l NaOH for 70 h to obtained high yield (92% wt) of NaxFexTi2-xO4 with x ∼ 0.76 - 0.79, as evaluated through the Rietveld refinement and quantitative phase analysis of X-ray powder diffraction data. Transmission Electron Microscopy showed that NaxFexTi2-xO4 appears in submicron to micron crystals with well-defined facets, growing along the [001] crystallographic direction, which means that the tunnels, a peculiarity of this crystal structure, are oriented along the direction of growth. © 2007 Elsevier Ltd. All rights reserved.",
publisher = "Elsevier",
journal = "Solid State Communications",
title = "Hydrothermal synthesis of NaxFexTi2-xO4 from natural ilmenite sand: A CaFe2O4 structure type compound",
pages = "346-350",
volume = "145",
number = "7-8",
doi = "10.1016/j.ssc.2007.12.006",
url = "https://hdl.handle.net/21.15107/rcub_dais_3587"
}

Marinković, B. A., Mančić, L., Jardim, P. M., Milošević, O.,& Rizzo, F.. (2008). Hydrothermal synthesis of NaxFexTi2-xO4 from natural ilmenite sand: A CaFe2O4 structure type compound. in Solid State Communications
Elsevier., 145(7-8), 346-350.
https://doi.org/10.1016/j.ssc.2007.12.006
https://hdl.handle.net/21.15107/rcub_dais_3587

Marinković BA, Mančić L, Jardim PM, Milošević O, Rizzo F. Hydrothermal synthesis of NaxFexTi2-xO4 from natural ilmenite sand: A CaFe2O4 structure type compound. in Solid State Communications. 2008;145(7-8):346-350.
doi:10.1016/j.ssc.2007.12.006
https://hdl.handle.net/21.15107/rcub_dais_3587 .

Marinković, Bojan A., Mančić, Lidija, Jardim, Paula M., Milošević, Olivera, Rizzo, Fernando, "Hydrothermal synthesis of NaxFexTi2-xO4 from natural ilmenite sand: A CaFe2O4 structure type compound" in Solid State Communications, 145, no. 7-8 (2008):346-350,
https://doi.org/10.1016/j.ssc.2007.12.006 .,
https://hdl.handle.net/21.15107/rcub_dais_3587 .