@article { author = {Arjomandbigdeli, Tara and Isapour, Zahra and Malek Khachatourian, Adrine and Golmohammad**, Mohammad}, title = {Synthesis and characterization of Ag-Y co-doped Mn-Co spinel for solid oxide fuel cell application}, journal = {Hydrogen, Fuel Cell & Energy Storage}, volume = {8}, number = {1}, pages = {43-49}, year = {2021}, publisher = {Iranian Research Organization for Science and Technology (IROST)}, issn = {2980-8537}, eissn = {2980-8863}, doi = {10.22104/ijhfc.2021.4764.1215}, abstract = {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.}, keywords = {Mn-Co spinel,Solid oxide fuel cell,interconnect coating,characterization,doping}, url = {https://hfe.irost.ir/article_1015.html}, eprint = {https://hfe.irost.ir/article_1015_bfe2b8298a2a178d9653bd730034f1d7.pdf} }