Aqueous ZrO2 and YSZ Colloidal Systems through Microwave Assisted Hydrothermal Synthesis
In this paper, the formation of ZrO2 and yttria-stabilised-zirconia (YSZ) aqueous colloidal systems via microwave assisted hydrothermal synthesis is studied. Microwave synthesis allows a fast screening of the influence of different parameters such as time and temperature. The temperature varied from...
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doaj-e743c83535224a1093182f31ecb580f12020-11-24T21:16:59ZengMDPI AGMaterials1996-19442013-09-01694082409510.3390/ma6094082Aqueous ZrO2 and YSZ Colloidal Systems through Microwave Assisted Hydrothermal SynthesisKlaartje De BuysserIsabel Van DriesscheFreya Van Den BroeckJosé C. MartinsPetra LommensKenny VernieuweIn this paper, the formation of ZrO2 and yttria-stabilised-zirconia (YSZ) aqueous colloidal systems via microwave assisted hydrothermal synthesis is studied. Microwave synthesis allows a fast screening of the influence of different parameters such as time and temperature. The temperature varied from 140 °C up to 180 °C and the used reaction time varied from 5 min up to 1 h. The synthesised zirconia nanoparticles have a particle size of 50 nm confirmed by TEM. A 1H NMR (nuclear magnetic resonance) study helped to understand the stabilization mechanism of the synthesised particles. By the addition of ytrrium ions into the zirconia colloidal solution, YSZ could be formed via an additional thermal treatment. Hereby, the samples are heated up to 400 °C for 1 h. YSZ colloidal solutions are synthesised by making use of complexing agents such as nitrilotriacetic acid, ethylenediaminetetraacetic acid and citric acid to control the hydrolysis and condensation of both ions to avoid non-stoichiometric phases. The ratio of Zr/Y in the particles is quantified by XRF. The amorphous structure of those particles necessitates an additional thermal treatment up to 600 °C during 1 h in order to obtain crystalline YSZ.http://www.mdpi.com/1996-1944/6/9/4082microwave assisted synthesisYSZzirconiananoparticlesNMR |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Klaartje De Buysser Isabel Van Driessche Freya Van Den Broeck José C. Martins Petra Lommens Kenny Vernieuwe |
spellingShingle |
Klaartje De Buysser Isabel Van Driessche Freya Van Den Broeck José C. Martins Petra Lommens Kenny Vernieuwe Aqueous ZrO2 and YSZ Colloidal Systems through Microwave Assisted Hydrothermal Synthesis Materials microwave assisted synthesis YSZ zirconia nanoparticles NMR |
author_facet |
Klaartje De Buysser Isabel Van Driessche Freya Van Den Broeck José C. Martins Petra Lommens Kenny Vernieuwe |
author_sort |
Klaartje De Buysser |
title |
Aqueous ZrO2 and YSZ Colloidal Systems through Microwave Assisted Hydrothermal Synthesis |
title_short |
Aqueous ZrO2 and YSZ Colloidal Systems through Microwave Assisted Hydrothermal Synthesis |
title_full |
Aqueous ZrO2 and YSZ Colloidal Systems through Microwave Assisted Hydrothermal Synthesis |
title_fullStr |
Aqueous ZrO2 and YSZ Colloidal Systems through Microwave Assisted Hydrothermal Synthesis |
title_full_unstemmed |
Aqueous ZrO2 and YSZ Colloidal Systems through Microwave Assisted Hydrothermal Synthesis |
title_sort |
aqueous zro2 and ysz colloidal systems through microwave assisted hydrothermal synthesis |
publisher |
MDPI AG |
series |
Materials |
issn |
1996-1944 |
publishDate |
2013-09-01 |
description |
In this paper, the formation of ZrO2 and yttria-stabilised-zirconia (YSZ) aqueous colloidal systems via microwave assisted hydrothermal synthesis is studied. Microwave synthesis allows a fast screening of the influence of different parameters such as time and temperature. The temperature varied from 140 °C up to 180 °C and the used reaction time varied from 5 min up to 1 h. The synthesised zirconia nanoparticles have a particle size of 50 nm confirmed by TEM. A 1H NMR (nuclear magnetic resonance) study helped to understand the stabilization mechanism of the synthesised particles. By the addition of ytrrium ions into the zirconia colloidal solution, YSZ could be formed via an additional thermal treatment. Hereby, the samples are heated up to 400 °C for 1 h. YSZ colloidal solutions are synthesised by making use of complexing agents such as nitrilotriacetic acid, ethylenediaminetetraacetic acid and citric acid to control the hydrolysis and condensation of both ions to avoid non-stoichiometric phases. The ratio of Zr/Y in the particles is quantified by XRF. The amorphous structure of those particles necessitates an additional thermal treatment up to 600 °C during 1 h in order to obtain crystalline YSZ. |
topic |
microwave assisted synthesis YSZ zirconia nanoparticles NMR |
url |
http://www.mdpi.com/1996-1944/6/9/4082 |
work_keys_str_mv |
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