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Ce(SO4) 2-doped phosphosilicate gel was prepared by mechanical milling.Complex impedance analysis proved that the 15 h-ball-milled sample showed a maximum conductivity of 2.97 S/m at 130 °C,which is about 40% higher than that of the sol-gel-prepared sample with the same compositions.NMR results proved that the ball-milled samples contained more Q1 structural units helpful to an increase in both proton conduction and chemical durability.
Ce (SO4) 2-doped phosphosilicate gel was prepared by mechanical milling. Complex impedance analysis proved that the 15 h-ball-milled sample showed a maximum conductivity of 2.97 S / m at 130 ° C, which is about 40% higher than that of the sol-gel-prepared sample with the same compositions. NMR results proved that the ball-milled samples contained more Q1 structural units helpful to an increase in both proton conduction and chemical durability.