“…6,7 Several investigations have been made to overcome the capacity fading by doping with rare metal cations, such as Nd, 8,9 La, 10,11 La, Ce, Pr, 12,13 Sm, 14 Ce 15 and Y. [16][17][18] Molten salt synthesis (MSS) is a simple method for preparing complex oxides with the desired stoichiometry using a low melting flux. Molten salts, such as LiCl, NaCl and KCl, are usually used as a solvent or reaction species in many chemical reactions.…”