一种参比电极在高温氟化物熔盐环境中的性能

Performance of a Reference Electrode in High-temperature Fluoride Salt Environment

制备了一种可用于高温氟盐环境的参比电极,该参比电极通过内外两个热解氮化硼套管,保护石墨管体不受高温氟盐腐蚀作用。采用电位差测试及高温氟盐试验等方法考察了其在高温氟盐中的稳定性。结果表明:该参比电极的稳定性不会因使用次数的增加而变差,在14 400s内,其电位差始终维持在2.4~2.8mV;该参比电极还具有良好的能斯特性能、可逆性、重复利用性。在高温氟盐环境的相关研究中,该参比电极具有较好的应用前景。

A reference electrode used in high temperature fluoride salt environment was prepared.Graphite tube was protected from high temperature fluoride salt corrosion by internal and external pyrolytic boron nitride tubes.The stability of the reference electrode in high temperature fluoride salt environment was investigated by potential difference(ΔE)test and high temperature fluoride salt test.The results show that the stability of the reference electrode did not deteriorate due to the increase of uses,andΔE was always maintained at 2.4 mV to 2.8 mV within14 400 s.The reference electrode had good Nernst property,reversibility and reusability.In the related research of high temperature fluoride salt environment,the reference electrode had a good application prospect.