ZHOU Liping, ZENG Xiaoqin, CHEN Liping, et al. Research on electrochemical sensor for hydrogen volume fraction test in hydrogen rich water[J]. 2019, (8): 9-10+14.
ZHOU Liping, ZENG Xiaoqin, CHEN Liping, et al. Research on electrochemical sensor for hydrogen volume fraction test in hydrogen rich water[J]. 2019, (8): 9-10+14. DOI: 10.13873/J.1000-9787(2019)08-0009-02.
电化学传感器测试富氢水中氢气体积分数的研究
摘要
提出利用复合电极测试富氢水中氢气体积分数的方法。试验表明:对于以2个铂丝分别作为工作电极和辅助电极
Ag/AgCl为参比电极的三电极体系
外部通以恒电位
工作电极维持在恒定的电位
可以实现敏感电极曲线。传感器对(0. 1~0. 8)×10-6体积分数的富氢水具有良好的传感性能
电化学传感器电流与氢气体积分数呈正比例线性关系
其响应时间低于5 s。
Abstract
A method for hydrogen volume fraction test in hydrogen rich water by composite electrodes is proposed. The test shows that for the three-electrode system with two platinum wires as working electrode and auxiliary electrode and Ag/Ag Cl as the reference electrode
with constant external potential. The potential of the working electrode will not change with the potential of the auxiliary electrode
and the sensitive electrode curve can be realized. The sensor has good sensing performance for the hydrogen rich water of volume fraction of( 0. 1~ 0. 8) × 10
-6
. The electrochemical sensor current has a positive linear relationship with the hydrogen volume fraction