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.
- Continuous flow synthesis
- Supercritical water
- Gadolinium doped ceria
- Inkjet printing
- Solid oxide fuel cell