%0 Journal Article %T Synthesis and characterization of Ag-Y co-doped Mn-Co spinel for solid oxide fuel cell application %J Hydrogen, Fuel Cell & Energy Storage %I Iranian Research Organization for Science and Technology (IROST) %Z 2980-8537 %A Arjomandbigdeli, Tara %A Isapour, Zahra %A Malek Khachatourian, Adrine %A Golmohammad**, Mohammad %D 2021 %\ 04/09/2021 %V 8 %N 1 %P 43-49 %! Synthesis and characterization of Ag-Y co-doped Mn-Co spinel for solid oxide fuel cell application %K Mn-Co spinel %K Solid oxide fuel cell %K interconnect coating %K characterization %K doping %R 10.22104/ijhfc.2021.4764.1215 %X Mn-Co spinel coating for solid oxide fuel cell interconnects shows a suitable thermal expansion match, acceptable electrical conductivity, and good structural stability. In this paper, the addition of different amounts of Ag and Y as dopants on the physical and electrical properties of the Mn-Co spinel is investigated to improve the coating performance. First, the doped and co-doped powders were successfully synthesized using the Pechini sol-gel method. The synthesized powders were then characterized using X-ray diffraction and field emission scanning electron microscopy. The results confirmed that Ag was not completely doped into the spinel structure and instead acted. as an additive, whereas Y caused Mn3O4 impurity phase formation at higher mol%. Next, the powders were pressed and sintered at different temperatures (950 and 1050 °C) to evaluate the effect of dopants on the sintering and electrical behavior of the samples. Finally, the electrical conductivity of the samples was evaluated using a 2-probe direct current technique. Although results showed that room temperature electrical conductivity increased upon doping, adding Y had a better effect on conductivity than Ag. %U https://hfe.irost.ir/article_1015_bfe2b8298a2a178d9653bd730034f1d7.pdf