低温型氧化锆氧传感器的研制  

Development of a low temperature zirconia oxygen sensor

作　　者：向蓝翔[1] 张仲生[1] 张先梓 邵长贵[1] 湛建阶[2] 

机构地区：[1]中国原子能科学研究院,北京102413 [2]广西师范大学计测中心,桂林54100

出　　处：《分析仪器》1997年第2期9-11,共3页Analytical Instrumentation

摘　　要：用氢氟酸和硫酸混合溶液对氧化锆元件进行表面处理可以增加氧化锆电池电极表面积，从而增强电极材料与电解质表面分子作用力，使氧化锆电池的工作温度由通常的700～800℃降至500℃以下。电池在低温段池电势与氧分压符合能斯特方程，池内阻小，本底电势低，响应快，测量重复性好，适合作低温氧传感器。By the pretreatment of the pretreatment of zirconia element with a mixture of hydrofluoric acid and sulfuric acidd, the surface area of the eletrode can be increased, thus the interactive force between molecules of electrode material and electrolyte surface is enhanced, The working temperature of the treated zirconia cell decreased from 700~800℃ down to lower than 500℃. The potential of the cell and the partial pressure of oxygen agree well with Nerst equation in the range of lower temperatures. The internal resistance and the background electromotive force of the cell are low and the response is fast with good reproducibility. The electrode is suitable to be used in low temperature oxygen sensors.

关 键 词：低温 氧化锆 氧传感器 传感器 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]