Hydrogen Sensor with Three Nickel Electrodes

Yu Gang,  Zhao Liang,  Ye Liyuan,  Guo Xiaohua
(College of Chemistry and Chemical Engineering, Hunan University,  Changsha  410082)

Abstract  A sensor composed of three nickels has been developed to determine the permeation rate of atomic hydrogen. The effects of process of electrolytically deposited nickel on the active side of oxidizing atomic hydrogen on base current were investigated. The electrode potential was measured in KOH solutions. The range of atomic hydrogen oxidized potential vs nickel electrode was between -0.2～+0.3V. The reliability of output of the sensor signal was verified with RH-404 hydrogen tester.
Key words  Hydrogen sensor,  Nickel electrode,  Hydrogen permeation

三镍电极氢传感器

余 刚  赵 亮  叶立元  郭小华
(湖南大学化学化工学院  长沙  410082)

摘要  研制了一种三镍电极氢传感器，测定钢铁中原子氢渗透速率的方法。研究了镀镍的工艺对原子氢氧化活性表面的背景电流影响。测定了镍作参比电极在氢氧化钾溶液中的电极电势，用镍作参比电极时原子氢氧化电势在-0.2～+0.3V(vs Nie)之间，用RH-404氢测定仪验证了传感器传感信号是可靠的。
关键词  氢传感器  镍电极  氢渗透

余刚  男，43岁，博士，教授，从事腐蚀电化学研究。 E-mail: yuganghn@cs.hn.cn
2002-09-25收稿，2003-06-24修回

(PDF全文下载c03109)