Abstract
Gadolinium-doped ceria (GDC), a prominent solid electrolyte for solid oxide fuel cells, is known to have poor sinterability and requires high temperatures for densification. To address this issue, transition-metal oxides have frequently been used as sintering aids to enhance the sinterability of ceria. In this study, a two-dimensional (2D) sintering aid, distinct from conventional three-dimensional structures, was used. Specifically, 2D MnO2 with nanometer-thickness, produced by a chemical exfoliation method, was utilized to improve the sinterability of GDC. GDC with the sintering additive (2D MnO2) was sintered at various temperatures (800–1200 °C). The addition of 2D MnO2 successfully reduced the sintering temperature. As a result, the sample with high relative density demonstrated high oxygen ionic conduction, even though it was sintered at a lower temperature.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call