Improved Ionic Conductivity of MgM4P6O24 (M = Hf, Zr) Ceramic Solid-State Electrolytes by Sol-Gel Synthesis

Data from electrochemical impedance measurement of MgHf4P6O24 and MgZr4P6O24 solid-state electrolytes show significant improvement in the ionic conductivity ceramic electrolytes. The electrical behaviour were measured using two-probe analysis at a temperature range 182-764°C, frequency within 100 mHz to 32 MHz. In this analysis, promising bulk 4.52 x 10-4 Scm-1 7.23 10-3 achieved for electrolytes, respectively, maximum temperatures 747°C 725°C, respectively. sol-gel method was deployed synthesis nanoparticles. thermogravimetric analysis-differential scanning calorimetry (TGA-DSC), X-ray diffraction (XRD) characterisation techniques study determine evaluate phase composition structure nanoparticles calcined 900°C sample pellets sintered 1300°C.