Synthesis of Al doped ZnO nanoparticles by aqueous coprecipitation - INSU - Institut national des sciences de l'Univers Access content directly
Journal Articles Powder Technology Year : 2014

Synthesis of Al doped ZnO nanoparticles by aqueous coprecipitation


Al-doped ZnO particles were obtained by a simple route: soda addition in aqueous cationic solution. The effects of temperature, hydrolysis duration, reagent concentration and time were investigated. A non-topotactic reaction mechanism, involving firstly the precipitation of various hydroxide compounds depending on the route (low or high pH), followed by the dissolution-recrystallization of the hydroxide species into ZnO was demonstrated. The Al concentration in the final ZnO nanopowders did not exceed 0.3 at.% which correspond to the solubility limit of Al in ZnO. The different experimental conditions allow the morphology of ZnO particles to be controlled from isotropic nanoparticles of several tens of nanometers, platelets of several hundreds of nanometers or agglomerates of needle like particles.
Fichier principal
Vignette du fichier
manuscript_revised_CF_fg-Mikael.pdf (252.31 Ko) Télécharger le fichier
Origin : Files produced by the author(s)

Dates and versions

insu-00990801 , version 1 (14-05-2014)



Fabien Giovannelli, Alphonsine Ngo Ndimba, Pablo Diaz-Chao, Mikael Motelica-Heino, P.I. Raynal, et al.. Synthesis of Al doped ZnO nanoparticles by aqueous coprecipitation. Powder Technology, 2014, 262, pp.203-208. ⟨10.1016/j.powtec.2014.04.065⟩. ⟨insu-00990801⟩
276 View
3207 Download



Gmail Facebook X LinkedIn More