Continuous hydrothermal flow synthesis of Gd‐doped CeO2 (GDC) nanoparticles for inkjet printing of SOFC electrolytes. Issue 2 (25th December 2017)

• Record Type: Journal Article
• Authors: Xu, Yu; Farandos, Nicholas; Rosa, Massimo; Zielke, Philipp; Esposito, Vincenzo; Vang Hendriksen, Peter; Jensen, Søren Højgaard; Li, Tao; Kelsall, Geoffrey; Kiebach, Ragnar
• Other Names: Smeacetto Federico guestEditor.; Kusnezoff Mihails guestEditor.
• Is Part Of: International journal of applied ceramic technology. Volume 15:Issue 2(2018)
• Page Start: 315
• Page End: 327
• Publication Date: 2017-12-25
• Subjects: continuous flow synthesis -- electrolyte -- gadolinium‐doped ceria -- hydrothermal -- inkjet printing -- SOFC -- solid oxide fuel cell -- supercritical water; Ceramics -- Periodicals; Ceramics -- Technological innovations -- Periodicals; 620.1405
• DOI: 10.1111/ijac.12845
• Languages: English
• ISSNs: 1546-542X

Abstract

Abstract: Gdx Ce1‐ x O2‐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 and 40 nm with polyhedral or octahedral shape could be obtained. Gd0.2 Ce0.8 O2‐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) 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 at 1300°C.