Hydrothermal synthesis of NaxFexTi2-xO4 from natural ilmenite sand: A CaFe2O4 structure type compound
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 microscopySource:
Solid State Communications, 2008, 145, 7-8, 346-350Publisher:
- 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
Institution/Community
Институт техничких наука САНУ / Institute of Technical Sciences of SASATY - 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 .