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用SrF_2和LaF_3按0.69:0.31比例的共沉淀粉料混入SrS粉作原料,按优化的最佳条件制备出固体电解质管,并构成以下电池:W│W,WS_2│Sr_(0.69)La_(0.31)F_(2.31)+SrS│[S]_Cu│W 测定铜液中的硫活度。结果表明,可得到稳定的电动势,电池是可逆的。测量结果显示铜中的硫活度呈负偏差,和文献的实验数据相吻合,表明Sr_(0.69)La_(0.31)F_(2.31)+SrS可以作为高温定硫的电化学传感器材料。
SrF_2 and LaF_3 were mixed into SrS powder by the ratio of 0.69: 0.31 coprecipitated powder, and the solid electrolyte tubes were prepared according to the optimized conditions, and the following batteries were formed: W│W, WS_2│Sr_ (0.69) La_ (0.31 ) F_ (2.31) + SrS [S] _Cu│W Determination of sulfur activity in the copper solution. The results show that a stable electromotive force can be obtained and the battery is reversible. The results show that the sulfur activity in copper is negatively biased, which is consistent with the experimental data in the literature, indicating that Sr 0.69 La 0.31 F 2.12 SrS can be used as high temperature sulfur-fixing electrochemical sensor materials.