Zinc oxide powders with different morphologies and grain sizes were synthesized using solvothermal methods from ethanolic zinc acetate solutions in the presence of lithium hydroxide. The influence of the temperature and the time of the reaction, as well as the pH value of the starting solution, on the ZnO particle size and morphology were examined. It was found that an increase in the pH value from 8 to 12 results in a significant decrease in the mean particle size. Also, the particles' morphology can be changed from hexagonal plates and prisms to rods by controlling the reaction time and the temperature. The crystallization mechanism is discussed, based on established correlations such as the particle size/shape versus the reaction parameters. Dissolution/recrystallisation is the most probable growth mechanism responsible for the ZnO particles' morphology obtained in the solvothermal (hydrothermal) reactions with a basic solution. The planar structure of the zinc-hydroxy-acetate molec...ule plays the main role in growing the structures during the sovothermal reactions with a slightly acid solution.
TY - JOUR
AU - Luković Golić, Danijela
AU - Branković, Zorica
AU - Daneu, Nina
AU - Bernik, Slavko
AU - Branković, Goran
PY - 2012
UR - http://rimsi.imsi.bg.ac.rs/handle/123456789/562
AB - Zinc oxide powders with different morphologies and grain sizes were synthesized using solvothermal methods from ethanolic zinc acetate solutions in the presence of lithium hydroxide. The influence of the temperature and the time of the reaction, as well as the pH value of the starting solution, on the ZnO particle size and morphology were examined. It was found that an increase in the pH value from 8 to 12 results in a significant decrease in the mean particle size. Also, the particles' morphology can be changed from hexagonal plates and prisms to rods by controlling the reaction time and the temperature. The crystallization mechanism is discussed, based on established correlations such as the particle size/shape versus the reaction parameters. Dissolution/recrystallisation is the most probable growth mechanism responsible for the ZnO particles' morphology obtained in the solvothermal (hydrothermal) reactions with a basic solution. The planar structure of the zinc-hydroxy-acetate molecule plays the main role in growing the structures during the sovothermal reactions with a slightly acid solution.
PB - Springer, Dordrecht
T2 - Journal of Sol-Gel Science and Technology
T1 - Solvothermal syntheses of nano- and micro-sized ZnO powders with a controllable morphology
EP - 125
IS - 1
SP - 116
VL - 63
DO - 10.1007/s10971-012-2773-z
ER -
@article{
author = "Luković Golić, Danijela and Branković, Zorica and Daneu, Nina and Bernik, Slavko and Branković, Goran",
year = "2012",
abstract = "Zinc oxide powders with different morphologies and grain sizes were synthesized using solvothermal methods from ethanolic zinc acetate solutions in the presence of lithium hydroxide. The influence of the temperature and the time of the reaction, as well as the pH value of the starting solution, on the ZnO particle size and morphology were examined. It was found that an increase in the pH value from 8 to 12 results in a significant decrease in the mean particle size. Also, the particles' morphology can be changed from hexagonal plates and prisms to rods by controlling the reaction time and the temperature. The crystallization mechanism is discussed, based on established correlations such as the particle size/shape versus the reaction parameters. Dissolution/recrystallisation is the most probable growth mechanism responsible for the ZnO particles' morphology obtained in the solvothermal (hydrothermal) reactions with a basic solution. The planar structure of the zinc-hydroxy-acetate molecule plays the main role in growing the structures during the sovothermal reactions with a slightly acid solution.",
publisher = "Springer, Dordrecht",
journal = "Journal of Sol-Gel Science and Technology",
title = "Solvothermal syntheses of nano- and micro-sized ZnO powders with a controllable morphology",
pages = "125-116",
number = "1",
volume = "63",
doi = "10.1007/s10971-012-2773-z"
}
Luković Golić, D., Branković, Z., Daneu, N., Bernik, S.,& Branković, G.. (2012). Solvothermal syntheses of nano- and micro-sized ZnO powders with a controllable morphology. in Journal of Sol-Gel Science and Technology
Springer, Dordrecht., 63(1), 116-125.
https://doi.org/10.1007/s10971-012-2773-z
Luković Golić D, Branković Z, Daneu N, Bernik S, Branković G. Solvothermal syntheses of nano- and micro-sized ZnO powders with a controllable morphology. in Journal of Sol-Gel Science and Technology. 2012;63(1):116-125.
doi:10.1007/s10971-012-2773-z .
Luković Golić, Danijela, Branković, Zorica, Daneu, Nina, Bernik, Slavko, Branković, Goran, "Solvothermal syntheses of nano- and micro-sized ZnO powders with a controllable morphology" in Journal of Sol-Gel Science and Technology, 63, no. 1 (2012):116-125,
https://doi.org/10.1007/s10971-012-2773-z . .
