Hydrothermal Synthesis of ZnAl2O4 Spinel

Tomasz Strachowski 1,2,  Daniel Sibera 3,  Adam Presz 1,  Roman Jędrzejewski 4,  Jan Mizeracki 1,  Witold Łojkowski 1,  Urszula Narkiewicz 3

1. Polish Academy of Sciences, Institute of High Pressure Physics (UNIPRESS), Sokolowska 29/37, Warszawa 01-142, Poland
2. Warsaw University of Technology, Faculty of Materials Science and Engineering (InMat), Wołoska 141, Warszawa 02-507, Poland
3. Szczecin University of Technology, Institute of Chemical and Environment Engineering, Szczecin 70-322, Poland
4. Szczecin University of Technology (SZUT), Pułaskiego 10, Szczecin 70-322, Poland

Abstract

Nanometric zinc aluminate (ZnAl2O4) of spinel structure was obtained by hydrothermal method using microwave reactor and stop-flow reactor. As the synthesis precursor were used aqueous solution of Zn(NO3)2*6H2O and Al(NO3)3*9H2O salts mixture. During preparation of salts solution, were kept such proportions that Al:Zn molar ratio was 2:1. For the precipitation of hydroxides from the solution, 2 M aqueous solution of KOH were used. During the synthesis process, were used the metal hydroxides suspension in the matrix solution. The aim of this work it was the comparsion of synthesis products from two types of reactors when the parameters of the process: pressure, temperature and reaction time, were kept this same. Achieved products were characterized using XRD analysis, surface area measurement by BET method and density. Morphology were observed using scanning microscope SEM.

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Presentation: Poster at E-MRS Fall Meeting 2008, Symposium I, by Tomasz Strachowski
See On-line Journal of E-MRS Fall Meeting 2008

Submitted: 2008-08-04 15:17
Revised:   2008-08-04 15:17
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