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本文对晶态Na_2SO_4-Na_2MoO_4体系的离子导电性进行了研究;并得出在Na_2MoO_4含量为10m/o时电导率最大(σ=1.01×10~(-4)Ω~(-1)cm~(-1).300℃);XRD、DTA分析表明,该组成处为一新相Na_2Mo_(0.1)S_(0.9)O_4,其相变温度为212℃、425℃,在相变处对应于明显的电导率突变。根据IR谱实验结果和新相的结构特点,讨论了该体系的导电机理。
In this paper, the ionic conductivity of the crystalline Na_2SO_4-Na_2MoO_4 system has been studied. The results show that the conductivity is the highest when the content of Na_2MoO_4 is 10m / o (σ = 1.01 × 10 ~ (-4) Ω ~ (-1) cm ~ -1) .300 ℃). The results of XRD and DTA indicated that the phase was a new phase of Na_2Mo_ (0.1) S_ (0.9) O_4 with a phase transformation temperature of 212 ℃ and 425 ℃ Conductivity mutation. According to the experimental results of IR spectrum and the structural features of the new phase, the conduction mechanism of the system is discussed.