The present study reports synthesis, XRD, Impedance spectroscopy and ionic conductivity of Ce _(1-x)(Gd _(0.5)Pr _(0.5)) _xO _2 (x = 0-0.24) system. These samples were synthesized through the sol-gel process followed by low temperature combustion. The samples were sintered at 1300C to obtain dense ceramics (over 98%). XRD confirms the single phase with a cubic structure. The two-probe a.c. impedance spectroscopy was used to study the ionic conductivity of doped ceria samples. The Ce _(0.88)(Gd _(0.5)Pr _(0.5)) _(0.12)O _2, Ce _(0.84)(Gd _(0.5)Pr _(0.5)) _(0.16)O _2 compositions showed highest grain ionic conductivity values i.e., 1.012 × 10 ~(-2) Scm and 1.059 × 10 ~(-2) Scm respectively at 500°C.
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