Titania-coated manganite nanoparticles: synthesis of the shell, characterization and MRI properties

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F17%3A00473952" target="_blank" >RIV/68378271:_____/17:00473952 - isvavai.cz</a>
Alternative codes found
RIV/68378041:_____/17:00473952 RIV/00023001:_____/17:00060159
Result on the web
<a href="http://dx.doi.org/10.1016/j.jmmm.2016.10.097" target="_blank" >http://dx.doi.org/10.1016/j.jmmm.2016.10.097</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jmmm.2016.10.097" target="_blank" >10.1016/j.jmmm.2016.10.097</a>

Result language
angličtina
Original language name
Titania-coated manganite nanoparticles: synthesis of the shell, characterization and MRI properties
Original language description
Novel procedure for coating of oxide nanoparticles with titania is developed and applied to magnetic cores of perovskite manganite. Bare particles of the ferromagnetic La0.65Sr0.35MnO3 phase, possessing high magnetization, M10 kOe(4.5 K) = 63.5 emu g-1, and Curie temperature, TC = 355 K, are synthesized by sol-gel procedure and subsequently coated with titania. Further, a comparative silica-coated product is prepared. In order to analyse the morphology, colloidal stability, and surface properties of these two types of coated particles, a detailed study by means of TEM, DLS, zeta-potential measurements, and IR spectroscopy is carried out. The experiments on the titania-coated sample reveal a continuous though porous character of the TiO2 shell. Finally, the relaxometric study at the magnetic field of 0.5 T, performed to quantity the transverse relaxivity and its temperature dependence, reveals important differences between the titania-coated and silica-coated nanoparticles.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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