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arXiv · 1904.04042

Continuous hydrothermal flow synthesis of Gd-doped CeO2 (GDC) nanoparticles for inkjet printing of SOFC electrolytes

Yu Xu·Nicholas Farandos·Massimo Rosa·Philipp Zielke·Vincenzo Esposito·Peter Vang Hendriksen·Søren Højgaard Jensen·Tao Li·Geoffrey Kelsall·Ragnar Kiebach
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Abstract

GdxCe1-xO2-d (GDC) nanoparticles were synthesized, using continuous hydrothermal flow synthesis. By varying the synthesis conditions, particle size and morphology could be tailored. Here, particle sizes between 6 and 40 nm with polyhedral or octahedral shape could be obtained. Gd0.2Ce0.8O2-d nanoparticles were further processed into inks for inkjet printing. Despite the small particle size/large surface area, inks with excellent printing behavior were formulated. For proof-of-concept, thin GDC layers were printed on a) green NiO-GDC substrates, and on b) presintered NiO-YSZ substrates. While no dense layers could be obtained on the green NiO-GDC substrates, GDC nanoparticles printed on NiO-YSZ substrates formed a dense continuous layer after firing.

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Yu Xu, Nicholas Farandos, Massimo Rosa, Philipp Zielke, Vincenzo Esposito, Peter Vang Hendriksen, Søren Højgaard Jensen, Tao Li, Geoffrey Kelsall, Ragnar Kiebach. 2019-04-08. Continuous hydrothermal flow synthesis of Gd-doped CeO2 (GDC) nanoparticles for inkjet printing of SOFC electrolytes. https://doi.org/10.1111/ijac.12845

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