Manganese doped bismuth vanadate solid electrolytes: oxygen permeation in Bi2V0.8Mn0.2O5.3

Recent Material Developments in Fast Oxide Ion Conductors

“…This trend is in agreement with the decreasing of the total activation energy according to Kilner et al These authors pointed out the importance of the defect pairs that are formed due to the interaction between oxide ion vacancies and aliovalent cations in substituted oxides; that is, the larger the mismatch between host and dopant cation radius, the higher the association energy. Yang et al , prepared Mn derivatives starting from MnO 2 as the dopant. They evidenced the tetragonal γ phase for 10−25% of Mn dopant on the vanadium sites.…”

Evaluation of Sm0.95Ba0.05Fe0.95Ru0.05O3 as a potential cathode material for solid oxide fuel cells

“…In the past years, extensive efforts have been made to reduce the SOFC operating temperature, which can broaden choice of the electrode and interconnecting materials, reduce the system costs and increase the performance durability. [5][6][7][8] Nevertheless, with the reduction of temperature, the ohmic resistance from the electrolyte and interfacial polarizations from the electrodes will exponentially increase, giving rise to a dramatical decline of the cell performance. 9,10 The problem of ohmic resistance has been gradually solved via reducing the electrolyte thickness or applying alternative electrolyte materials, for instances, yttriastabilized zirconia (YSZ), La(Sr)Ga(Mg)O 3 and Gd 0.1 Ce 0.9 O 2Àd (GDC).…”