压片法制备氯离子传感器的工作性能
Working Performance of Chloride Ion Sensor Fabricated by Compression Method
摘 要
采用压片法制备了以Ag/AgCl为工作电极,MnO2为参比电极的氯离子传感器.并且对传感器进行了长期稳定性试验、能斯特方程测试、温度试验、离子干扰试验和恒电流极化试验.结果表明,氯离子传感器稳定性良好,能斯特方程线性相关性强.温度对传感器工作性能影响不大,但是其他离子的存在对传感器电位值有一定影响.恒定流极化试验表明氯离子传感器抵抗极化能力较差.
耐久性
氯离子
传感器
concrete
durability
chloride ion
sensor
Abstract
A chloride ion sensor with Ag/AgCl as working electrode and MnO2 as reference electrode was fabricated by a compression method.A series of tests were conducted to examine the performance of the sensor.The test results showed that the stability of the sensor was excellent.The Nernst equation test showed a strong linear correlation.Temperature had little effect on the results,but the presence of other ions had a certain impact on the sensor's potential value.The resistance of the sensor against the constant current polarization was weak.
中图分类号 TU528.063 DOI 10.11973/fsyfh-201506009
所属栏目 试验研究
基金项目 山东省杰出青年基金(2012JQF01002)
收稿日期 2014/5/12
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备注李伟华(1971-),教授,博士,从事环海洋工程材料的腐蚀与防护研究.
引用该论文: LI Zhen-lei,LI Wei-hua. Working Performance of Chloride Ion Sensor Fabricated by Compression Method[J]. Corrosion & Protection, 2015, 36(6): 547
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参考文献
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【3】MURALIDHARAN S,HA T,BAE J,et al.Electrochemical studies on the solid embeddable reference sensors for corrosion monitoring in concrete structure[J].Materials Letters,2006,60(5):651-655.
【4】THANGAVEL K,RENGASAMY N S.Relationship between chloride/hydride and corrosion rate of steel in concrete[J].Cement and Concrete Composites,1998,20(4):283-292.
【5】DE VERA G,CLIMENT M A,ANTONC,et al.Determination of the selectivity coefficient of a chloride ion selective electrode in alkaline media simulating the cement paste pore solution[J].Journal of Electroanalytical Chemistry,2010(639):43-49.
【6】ATKINS C P,SCANTLEBURY J D,NEDWELL P J,et al.Monitoring chloride concentrations in hardened cement pastes using ion selective electrodes[J].Cement and Concrete Research,1996,26(2):319-324.
【7】MONTENOR M F,SIMOES A M P,FERREIRA M G S.Chloride-induced corrosion on reinforcing steel:From the fundamentals to the monitoring techniques[J].Cement and Concrete Composites,2003,24(5):491-502.
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