Effect of co-doping of Mg and La on conductivity of ceria

Electrical properties of ceria/carbonate nanocomposites

“…Recently, remarcable results in the improvement of the ionic conductivity have been obtained by creating structural oxygen vacancies in the single phase material by ceria co-doping with dopant pairs, such as: Gd-Ca [9], Gd-Pr [10], La-Mg [11], Ca-Mn-Y * Corresponding author. Tel.…”

Electronic Structure and Room Temperature Ferromagnetism in Gd‐doped Cerium Oxide Nanoparticles for Hydrogen Generation via Photocatalytic Water Splitting

“…It has been reported that addition of Sm 3+ and Gd 3+ cations in CeO 2 system produced highest conductivity with least distortion of parent lattice, which is attributed to the smallest association enthalpy between the dopant cation and the oxygen vacancies in the CeO 2 lattice . Besides of dopant type, theoretical and experimental observations have also suggested that the ionic conduction can be altered by the concentration of dopant . Moreover, it is well known that material properties changes when particle size reduces to nanoscale, as reported by Kosacki et al in their nanocrystalline CeO 2 thin film, electrical conductivity has found to be enhanced due to reduced enthalpy of oxygen vacancy formation.…”

“…[13][14][15] Besides of dopant type, theoretical and experimental observations have also suggested that the ionic conduction can be altered by the concentration of dopant. [16][17][18][19] Moreover, it is well known that material properties changes when particle size reduces to nanoscale, as reported by Kosacki et al [20] in their nanocrystalline CeO 2 thin film, electrical conductivity has found to be enhanced due to reduced enthalpy of oxygen vacancy formation. Li et al [21] have reported increase in catalytic activity as well as in optical and magnetic properties of porous Gd 3+ -doped CeO 2 (10 at% Gd) nanostructure due to Gd 3+ ions or formation of oxygen vacancies.…”

Molecular dynamics study in the Ce0.9M0.1O1.95 (M=Gd, Sm) doped and co-doped CeO2 systems: Structure and oxygen diffusion

“…The explanation of the ionic conductivity enhancement is then linked to the microstructure (particle size, grain boundaries) [25,26] and/or to the limitation of the ordered cluster size [31,32]. However, some other works show that no improvement of the conductivity is achieved when a second aliovalent cation is introduced in singly doped ceria [33][34][35].…”