Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7744210 | Solid State Ionics | 2018 | 7 Pages |
Abstract
The ionic conductivity of potassium boroantimonate K3Sb4O10(BO3) is studied between 300 and 750â¯Â°C by AC complex impedance measurement. Ball-milling of the powder prepared by solid state reaction at high temperature increases significantly the relative density of the sintered pellet and therefore the conductivity level which is about 1.5â¯Ãâ¯10â4â¯Sâ¯cmâ1 at 400â¯Â°C. The addition of a glass-type sintering aid increases similarly the relative density but has a detrimental effect over the conductivity level. The low activation energy of K3Sb4O10(BO3) compound, Eaâ¯=â¯0.325â¯eV, is related to the diffusion of K+ ions through interconnected 1D-tunnels.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Electrochemistry
Authors
Jean-Marie Doux, Lucie Leguay, Annie Le Gal La Salle, Olivier Joubert, Eric Quarez,