Fabrication of high performance Pr4Ni3O10 cathode based upon magnetic orientation behavior for intermediate-temperature solid oxide fuel cell.

[Display omitted] • An orientation behavior of Pr 4 Ni 3 O 10 in a magnetic field was disclosed. • An ab -plane preferentially oriented Pr 4 Ni 3 O 10 cathode was formed on an electrolyte. • Both ohmic and polarization losses were reduced with oriented Pr 4 Ni 3 O 10 cathode. A textured layer of a highly conductive mixed ion–electron conductor, Pr 4 Ni 3 O 10 , with a layer structure is applicable as a cathode to intermediate-temperature solid oxide fuel cells because of the large anisotropy in its conduction properties. In the present work, an ab -plane preferentially oriented Pr 4 Ni 3 O 10 cathode was successfully fabricated on a Gd 2 O 3 -doped CeO 2 electrolyte using a magnetic orientation process in a 0.9 T magnetic field. The orientation of the Pr 4 Ni 3 O 10 cathode effectively reduced not only the ohmic loss but also the polarization loss. [ABSTRACT FROM AUTHOR]