摘要
提出一种PVC+NaCl作为固体电解质层,全氟磺酸(Nafion)膜作为保护层的电极修饰方法,用以解决常规Ag/AgCl海洋电场电极易受海水中Br^-和I^-侵蚀的问题。与常规Ag/AgCl电极相比,改性后的电极具有同一级别的电场响应性能,且在高浓度的Br-溶液中具有更好的电位稳定性及抗腐蚀能力,能正确响应频率为1,0.1和0.01 Hz的电场信号,其线性度分别为2.163%,4.356%和6.720%,电极自噪声可低至14.037 nV/√Hz。
Aiming at the problem that the conventional Ag/AgCl marine electric field electrode is susceptible to Br^-, I^- corrosion in seawater, this paper proposes a novel replacement, which composed of PVC+NaCl as the solid electrolyte layer and Nafion film as the protective layer. Compared with the conventional Ag/AgCl electrode, the new electrode presents not only the same grade of responsiveness to the electric field, but also higher stability and corrosion resistance. The electrode can accurately respond to electric field signals at frequencies of 1, 0.1 and 0.01 Hz, correspondingly the linearity is 2.163%, 4.356% and 6.720%, respectively, while the intrinsic noise of the new electrode can be as low as 14.037 nV/√Hz.
作者
王泽臣
林君
杨国卿
梁尚清
WANG Zechen;LIN Jun;YANG Guoqing;LIANG Shangqing(College of Electronics and Information,Hangzhou Dianzi University,Hangzhou 310037,China)
出处
《中国腐蚀与防护学报》
CAS
CSCD
北大核心
2019年第6期581-587,共7页
Journal of Chinese Society For Corrosion and Protection
基金
浙江省自然科学基金(LQ16B070001和LY17B060012)。
