Heterogeneity and Disorder in Ti1-xFeyO2-d Nanocrystal Rutile-Based Flowerlike Aggregates: Detection of Anatase
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Kremenović, Aleksandar S.Antić, Bratislav
Blanuša, Jovan
Čomor, Mirjana
Colomban, Philippe
Mazerolles, Leo
Božin, Emil S.
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Here we report results of systematic investigation of heterogeneity and disorder in Ti1-xFeyO2-d nanorod rutile-based flowerlike aggregates. It was found that Ti1-xFeyO2-d aggregates are composed of two crystalline phases: rutile as a dominant and anatase as a minor phase. Flowerlike aggregates were found to grow from an isometric core ca. 5-10 nm in diameter that was built from anatase and rutile nanorods ca. 5 x 100 nm that were grown on the anatase surface having base plane (001) intergrowth with an anatase plane. The direction of rutile nanorods growth, i.e., direction of the nanorod elongation, was [001]. Highly nonisometric rutile crystals produce anisotropic X-ray powder diffraction line broadening and doubling of vibrational bands in Raman spectra. Both these techniques confirmed nonisometric character of rutile crystals and gave a quantitative measure of crystal shape anisotropy in excellent agreement with high-resolution transmission electron microscopy measurements. In addit...ion, from the atomic pair distribution function and Raman spectral analyses the level of vacancy concentration was determined in rutile and anatase phases of investigated samples.
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Journal of Physical Chemistry. C, 2011, 115, 11, 4395-4403Funding / projects:
- Magnetic and radionuclide labeled nanostructured materials for medical applications (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45015)
- Office of Basic Energy Sciences, US Department of Energy [DE-AC02-98CH10886], DOE [DE-AC02-06CH11357]
DOI: 10.1021/jp109437b
ISSN: 1932-7447
WoS: 000288401200006
Scopus: 2-s2.0-79952834020
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VinčaTY - JOUR AU - Kremenović, Aleksandar S. AU - Antić, Bratislav AU - Blanuša, Jovan AU - Čomor, Mirjana AU - Colomban, Philippe AU - Mazerolles, Leo AU - Božin, Emil S. PY - 2011 UR - https://vinar.vin.bg.ac.rs/handle/123456789/4246 AB - Here we report results of systematic investigation of heterogeneity and disorder in Ti1-xFeyO2-d nanorod rutile-based flowerlike aggregates. It was found that Ti1-xFeyO2-d aggregates are composed of two crystalline phases: rutile as a dominant and anatase as a minor phase. Flowerlike aggregates were found to grow from an isometric core ca. 5-10 nm in diameter that was built from anatase and rutile nanorods ca. 5 x 100 nm that were grown on the anatase surface having base plane (001) intergrowth with an anatase plane. The direction of rutile nanorods growth, i.e., direction of the nanorod elongation, was [001]. Highly nonisometric rutile crystals produce anisotropic X-ray powder diffraction line broadening and doubling of vibrational bands in Raman spectra. Both these techniques confirmed nonisometric character of rutile crystals and gave a quantitative measure of crystal shape anisotropy in excellent agreement with high-resolution transmission electron microscopy measurements. In addition, from the atomic pair distribution function and Raman spectral analyses the level of vacancy concentration was determined in rutile and anatase phases of investigated samples. T2 - Journal of Physical Chemistry. C T1 - Heterogeneity and Disorder in Ti1-xFeyO2-d Nanocrystal Rutile-Based Flowerlike Aggregates: Detection of Anatase VL - 115 IS - 11 SP - 4395 EP - 4403 DO - 10.1021/jp109437b ER -
@article{ author = "Kremenović, Aleksandar S. and Antić, Bratislav and Blanuša, Jovan and Čomor, Mirjana and Colomban, Philippe and Mazerolles, Leo and Božin, Emil S.", year = "2011", abstract = "Here we report results of systematic investigation of heterogeneity and disorder in Ti1-xFeyO2-d nanorod rutile-based flowerlike aggregates. It was found that Ti1-xFeyO2-d aggregates are composed of two crystalline phases: rutile as a dominant and anatase as a minor phase. Flowerlike aggregates were found to grow from an isometric core ca. 5-10 nm in diameter that was built from anatase and rutile nanorods ca. 5 x 100 nm that were grown on the anatase surface having base plane (001) intergrowth with an anatase plane. The direction of rutile nanorods growth, i.e., direction of the nanorod elongation, was [001]. Highly nonisometric rutile crystals produce anisotropic X-ray powder diffraction line broadening and doubling of vibrational bands in Raman spectra. Both these techniques confirmed nonisometric character of rutile crystals and gave a quantitative measure of crystal shape anisotropy in excellent agreement with high-resolution transmission electron microscopy measurements. In addition, from the atomic pair distribution function and Raman spectral analyses the level of vacancy concentration was determined in rutile and anatase phases of investigated samples.", journal = "Journal of Physical Chemistry. C", title = "Heterogeneity and Disorder in Ti1-xFeyO2-d Nanocrystal Rutile-Based Flowerlike Aggregates: Detection of Anatase", volume = "115", number = "11", pages = "4395-4403", doi = "10.1021/jp109437b" }
Kremenović, A. S., Antić, B., Blanuša, J., Čomor, M., Colomban, P., Mazerolles, L.,& Božin, E. S.. (2011). Heterogeneity and Disorder in Ti1-xFeyO2-d Nanocrystal Rutile-Based Flowerlike Aggregates: Detection of Anatase. in Journal of Physical Chemistry. C, 115(11), 4395-4403. https://doi.org/10.1021/jp109437b
Kremenović AS, Antić B, Blanuša J, Čomor M, Colomban P, Mazerolles L, Božin ES. Heterogeneity and Disorder in Ti1-xFeyO2-d Nanocrystal Rutile-Based Flowerlike Aggregates: Detection of Anatase. in Journal of Physical Chemistry. C. 2011;115(11):4395-4403. doi:10.1021/jp109437b .
Kremenović, Aleksandar S., Antić, Bratislav, Blanuša, Jovan, Čomor, Mirjana, Colomban, Philippe, Mazerolles, Leo, Božin, Emil S., "Heterogeneity and Disorder in Ti1-xFeyO2-d Nanocrystal Rutile-Based Flowerlike Aggregates: Detection of Anatase" in Journal of Physical Chemistry. C, 115, no. 11 (2011):4395-4403, https://doi.org/10.1021/jp109437b . .