| APARICIO, C., J. FILIP, K. MACHALOVA-SISKOVA, M. MASHLAN a Lubomír ŠPAŇHEL. Fe-lactate mediated formation of ZnO sols and self-organized nanorod assemblies. Online. Journal of Sol-Gel Science and Technology. Dordrecht: Springer Science + Business Media, 2014, roč. 72, č. 3, s. 655-662. ISSN 0928-0707. Dostupné z: https://dx.doi.org/10.1007/s10971-014-3553-8. [citováno 2024-04-23] |
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@article{1216541,
author = {Aparicio, C. and Filip, J. and MachalovaandSiskova, K. and Mashlan, M. and Špaňhel, Lubomír},
article_location = {Dordrecht},
article_number = {3},
doi = {http://dx.doi.org/10.1007/s10971-014-3553-8},
keywords = {Nanoparticles; Nanorods; ZnO; Fe-doped ZnO; Sol-gel coatings},
language = {eng},
issn = {0928-0707},
journal = {Journal of Sol-Gel Science and Technology},
title = {Fe-lactate mediated formation of ZnO sols and self-organized nanorod assemblies},
volume = {72},
year = {2014}
}
TY - JOUR
ID - 1216541
AU - Aparicio, C. - Filip, J. - Machalova-Siskova, K. - Mashlan, M. - Špaňhel, Lubomír
PY - 2014
TI - Fe-lactate mediated formation of ZnO sols and self-organized nanorod assemblies
JF - Journal of Sol-Gel Science and Technology
VL - 72
IS - 3
SP - 655-662
EP - 655-662
PB - Springer Science + Business Media
SN - 09280707
KW - Nanoparticles
KW - Nanorods
KW - ZnO
KW - Fe-doped ZnO
KW - Sol-gel coatings
N2 - Hot ethanolic mixtures of hydrated Zn(II)- and Fe(II)-carboxylates (acetate and lactate) react to form yellow-orange colored Fe(III)(x)ZnyOzOHw heteroclusters showing pronounced electronic resonances in the optical UV absorption spectra. On the addition of LiOH to these polymolecular sols, stable nanoparticulate Fe(III)-ZnO colloids are formed. During colloidal growth, 2-4 nm sized weakly crystallized Wurtzite nanoparticles are exclusively formed even in the presence of high Fe content up to 20 at.%. The presence of Fe(III) in the ZnO condensation process retards the nanoparticle growth and blocks the thermal crystallization and size enhancement up to 250 A degrees C. The produced 0.5 M Fe(III)-ZnO sols are useful for film formation processes. From atomic force microscopy-AFM, scanning electron microscopy-SEM and X-ray diffraction-XRD studies, we note important differences in shape and morphology of the thermally annealed Fe(III)-ZnO layers depending on the iron carboxylate employed. Surprisingly, Fe(II)-lactate derived coatings are carrying vertically oriented cone-shaped aggregates composed of 60-120 nm long primary nanorods. Contrary, Fe(II)-acetate based synthesis gave sand-dune like film morphologies containing spherical 12 nm sized nanocrystallites. All film samples possess mesoporosity with pore size ranging between 5 and 20 nm.
ER -
APARICIO, C., J. FILIP, K. MACHALOVA-SISKOVA, M. MASHLAN a Lubomír ŠPAŇHEL. Fe-lactate mediated formation of ZnO sols and self-organized nanorod assemblies. Online. \textit{Journal of Sol-Gel Science and Technology}. Dordrecht: Springer Science + Business Media, 2014, roč.~72, č.~3, s.~655-662. ISSN~0928-0707. Dostupné z: https://dx.doi.org/10.1007/s10971-014-3553-8. [citováno 2024-04-23]
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