Continuous Hydrothermal Flow Synthesis of Gd-doped CeO2 (GDC) Nanoparticles for Inkjet Printing of SOFC Electrolytes

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GdxCe1-xO2-δ (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 to 40 nm with polyhedral or octahedral shape could be obtained. Gd0.2Ce0.8O2-δ 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) pre-sintered 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 at 1300 °C.
Original languageEnglish
JournalInternational Journal of Applied Ceramic Technology
Issue number2
Pages (from-to)315-327
Publication statusPublished - 2018
CitationsWeb of Science® Times Cited: No match on DOI

    Research areas

  • Continuous flow synthesis, Hydrothermal, Supercritical water, Gadolinium doped ceria, Inkjet printing, SOFC, Electrolyte, Solid oxide fuel cell

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