石墨烯对Ag/AgCl电极水下电场探测性能的影响研究

doi:10.3969/j.issn.1000-1093.2019.12.018

兵工学报 ›› 2019, Vol. 40 ›› Issue (12): 2529-2536.doi: 10.3969/j.issn.1000-1093.2019.12.018

石墨烯对Ag/AgCl电极水下电场探测性能的影响研究

李红霞，宋玉苏，王烨煊，陈闻博

(海军工程大学基础部，湖北武汉 430033)

收稿日期:2018-12-17 修回日期:2018-12-17 上线日期:2020-02-14
通讯作者: 宋玉苏（1964—），女，教授，博士生导师 E-mail:13871164652@139.com
作者简介:李红霞（1979—），女，副教授，博士研究生。E-mail:26953296@qq.com
基金资助:
海军工程大学自主立项项目（425317Q001）

Effect of Graphene Modification on the Detection Performance of Ag/AgCl Electrode in Undersea Electric Field

LI Hongxia, SONG Yusu, WANG Yexuan, CHEN Wenbo

(Department of Basic Courses, Naval University of Engineering, Wuhan 430033， Hubei, China)

Received:2018-12-17 Revised:2018-12-17 Online:2020-02-14

摘要/Abstract

摘要： 利用石墨烯制备新型Ag/AgCl电极，开展其电化学性能及探测性能研究。通过对表面结构表征、电极极差、幅频响应、自噪声、极化曲线、吸水量和扫描振动电极等进行测试，分析石墨烯的加入及其含量对Ag/AgCl电极探测性能的影响规律。研究发现：相对于Ag/AgCl电极，石墨烯-Ag/AgCl电极极差稳定时间短、极差小、电化学性能好，适用于快速部署测量；石墨烯含量不同，对于改变Ag/AgCl电极与溶液界面接触性质有不同的作用机制：石墨烯含量为1%时主要表现在提高电极的孔隙率、增大比表面积；石墨烯含量为3%时主要表现在改善电极表面均匀性、加速溶液介质渗透。不同的作用机制是导致不同石墨烯含量Ag/AgCl电极电化学性能差异的主要原因。

关键词: 石墨烯, Ag/AgCl电极, 极差, 稳定时间, 扫描振动电极测试

Abstract: The electro-chemical properties and detection performance of Ag/AgCl electrode made of grapheme are studied. The influences of addition of graphene and its content on the detection performance of Ag/AgCl electrodes are analyzed from microstructure characterization, electrode potential drifts, amplitude-frequency response, self-noise, polarization curves, water absorption and microstructure of Ag/AgCl electrode. The study shows that the graphene-Ag/AgCl electrode has small potential drift, short stability time, and good electrochemical properties compared to Ag/AgCl electrode, which is suitable for the rapidly deploying measurement. The different contents of graphenes have different mechanisms of action for changing the interface contact properties of Ag/AgCl electrodes/solution. The porosity of electrode and the specific surface area increase with the graphene content of 1%, and the surface uniformity of electrode is improved and the permeation of solution medium is accelerated with the graphene content of 3%. Different mechanisms of action are the main reason for the difference of electrochemical properties of Ag/AgCl electrodes with different contents of graphene. Key

Key words: graphene, Ag/AgClelectrode, potentialdrift, stabilitytime, scanningvibratingelectrodetechnique

中图分类号:

P738.3
O69

李红霞，宋玉苏，王烨煊，陈闻博. 石墨烯对Ag/AgCl电极水下电场探测性能的影响研究[J]. 兵工学报, 2019, 40(12): 2529-2536.

LI Hongxia, SONG Yusu, WANG Yexuan, CHEN Wenbo. Effect of Graphene Modification on the Detection Performance of Ag/AgCl Electrode in Undersea Electric Field[J]. Acta Armamentarii, 2019, 40(12): 2529-2536.

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第40卷
第12期2019 年12月兵工学报ACTA
ARMAMENTARIIVol.40No.12Dec.2019

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石墨烯对Ag/AgCl电极水下电场探测性能的影响研究

Effect of Graphene Modification on the Detection Performance of Ag/AgCl Electrode in Undersea Electric Field

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