Hydrothermal synthesis of Mn2+ doped titanate nanotubes: Investigation of their structure and room temperature ferromagnetic behavior

Hydrothermal synthesis of Mn2+ doped titanate nanotubes (TNTs), which exhibited room temperature ferromagnetism (RTFM), is reported. Dispersions of 1 and 5 at.% Mn2+ doped anatase TiO2 nanocrystals were used as precursors. Size and shape of Mn2+ doped TNTs and precursor nanocrystals were studied by transmission electron microscopy (TEM). The relatively uniform size distribution of transverse dimension of nanotubes of about 10 nm was observed while their lengths varied up to few hundred nanometers. The X-Ray Diffraction (XRD) analysis and Raman spectroscopy of resultant powder confirmed the hydrogen dititanate (H2Ti2O5 x H2O) crystal phase of Mn2+ doped TNTs with the presence of small amount of sodium titanates. Electron paramagnetic resonance (EPR) experiments were performed to probe the local atomic and electronic structure of Mn in the nanotubes. Room temperature ferromagnetic ordering with saturation magnetic moment (Ms) in the range of 0.6–1.5 μB per Mn atom was observed. © 2019 El...

Keywords:

Titanate nanotubes / Mn2+ doped nanotubes / Hydrothermal synthesis / EPR spectroscopy / Ferromagnetic properties

Source:
Solid State Sciences, 2019, 94, 155-161

Funding / projects:

Size-, shape- and structure- dependent properties of nanoparticles and nanocomposites (RS-172056)

DOI: 10.1016/j.solidstatesciences.2019.06.008

ISSN: 1293-2558; 1873-3085

WoS: 000474858200023

Scopus: 2-s2.0-85067860534

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URI

https://vinar.vin.bg.ac.rs/handle/123456789/8358

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TY - JOUR
AU - Vranješ, Mila
AU - Kuljanin-Jakovljević, Jadranka Ž.
AU - Milošević, Milica V.
AU - Ćirić-Marjanović, Gordana N.
AU - Stoiljković, Milovan
AU - Konstantinović, Zorica
AU - Pavlović, Vladimir B.
AU - Milivojević, Dušan
AU - Šaponjić, Zoran
PY - 2019
UR - https://vinar.vin.bg.ac.rs/handle/123456789/8358
AB - Hydrothermal synthesis of Mn2+ doped titanate nanotubes (TNTs), which exhibited room temperature ferromagnetism (RTFM), is reported. Dispersions of 1 and 5 at.% Mn2+ doped anatase TiO2 nanocrystals were used as precursors. Size and shape of Mn2+ doped TNTs and precursor nanocrystals were studied by transmission electron microscopy (TEM). The relatively uniform size distribution of transverse dimension of nanotubes of about 10 nm was observed while their lengths varied up to few hundred nanometers. The X-Ray Diffraction (XRD) analysis and Raman spectroscopy of resultant powder confirmed the hydrogen dititanate (H2Ti2O5 x H2O) crystal phase of Mn2+ doped TNTs with the presence of small amount of sodium titanates. Electron paramagnetic resonance (EPR) experiments were performed to probe the local atomic and electronic structure of Mn in the nanotubes. Room temperature ferromagnetic ordering with saturation magnetic moment (Ms) in the range of 0.6–1.5 μB per Mn atom was observed. © 2019 Elsevier Masson SAS
T2 - Solid State Sciences
T1 - Hydrothermal synthesis of Mn2+ doped titanate nanotubes: Investigation of their structure and room temperature ferromagnetic behavior
VL - 94
SP - 155
EP - 161
DO - 10.1016/j.solidstatesciences.2019.06.008
ER -

@article{
author = "Vranješ, Mila and Kuljanin-Jakovljević, Jadranka Ž. and Milošević, Milica V. and Ćirić-Marjanović, Gordana N. and Stoiljković, Milovan and Konstantinović, Zorica and Pavlović, Vladimir B. and Milivojević, Dušan and Šaponjić, Zoran",
year = "2019",
abstract = "Hydrothermal synthesis of Mn2+ doped titanate nanotubes (TNTs), which exhibited room temperature ferromagnetism (RTFM), is reported. Dispersions of 1 and 5 at.% Mn2+ doped anatase TiO2 nanocrystals were used as precursors. Size and shape of Mn2+ doped TNTs and precursor nanocrystals were studied by transmission electron microscopy (TEM). The relatively uniform size distribution of transverse dimension of nanotubes of about 10 nm was observed while their lengths varied up to few hundred nanometers. The X-Ray Diffraction (XRD) analysis and Raman spectroscopy of resultant powder confirmed the hydrogen dititanate (H2Ti2O5 x H2O) crystal phase of Mn2+ doped TNTs with the presence of small amount of sodium titanates. Electron paramagnetic resonance (EPR) experiments were performed to probe the local atomic and electronic structure of Mn in the nanotubes. Room temperature ferromagnetic ordering with saturation magnetic moment (Ms) in the range of 0.6–1.5 μB per Mn atom was observed. © 2019 Elsevier Masson SAS",
journal = "Solid State Sciences",
title = "Hydrothermal synthesis of Mn2+ doped titanate nanotubes: Investigation of their structure and room temperature ferromagnetic behavior",
volume = "94",
pages = "155-161",
doi = "10.1016/j.solidstatesciences.2019.06.008"
}

Vranješ, M., Kuljanin-Jakovljević, J. Ž., Milošević, M. V., Ćirić-Marjanović, G. N., Stoiljković, M., Konstantinović, Z., Pavlović, V. B., Milivojević, D.,& Šaponjić, Z.. (2019). Hydrothermal synthesis of Mn2+ doped titanate nanotubes: Investigation of their structure and room temperature ferromagnetic behavior. in Solid State Sciences, 94, 155-161.
https://doi.org/10.1016/j.solidstatesciences.2019.06.008

Vranješ M, Kuljanin-Jakovljević JŽ, Milošević MV, Ćirić-Marjanović GN, Stoiljković M, Konstantinović Z, Pavlović VB, Milivojević D, Šaponjić Z. Hydrothermal synthesis of Mn2+ doped titanate nanotubes: Investigation of their structure and room temperature ferromagnetic behavior. in Solid State Sciences. 2019;94:155-161.
doi:10.1016/j.solidstatesciences.2019.06.008 .

Vranješ, Mila, Kuljanin-Jakovljević, Jadranka Ž., Milošević, Milica V., Ćirić-Marjanović, Gordana N., Stoiljković, Milovan, Konstantinović, Zorica, Pavlović, Vladimir B., Milivojević, Dušan, Šaponjić, Zoran, "Hydrothermal synthesis of Mn2+ doped titanate nanotubes: Investigation of their structure and room temperature ferromagnetic behavior" in Solid State Sciences, 94 (2019):155-161,
https://doi.org/10.1016/j.solidstatesciences.2019.06.008 . .