摘要
根据能斯特方程,在其它条件不变的情况下,Ag/AgCl电极的电位是温度的函数。为研究温度对Ag/AgCl电极的影响,将Ag/AgCl电极放在不同浓度Na Cl溶液(0.001、0.01、0.1、0.5、1mol/L)中进行不同温度(5、15、25、35、45、55、65℃)的恒温水浴加热,进而研究Ag/AgCl在不同温度下的电位变化。结果表明:Ag/AgCl电位随温度变化不大,温度的变化对电极电位的影响较小;Na Cl浓度由大到小但对应的温度系数均较小,可忽略温度对Ag/AgCl干扰的影响。
According to the Nernst equation,in the case of other conditions unchanged, Ag/AgC1 electrode potential was a function of temperature. In order to study the effect of temperature on the Ag/AgC1 electrode, the Ag/ AgC1 electrodewas placed in NaC1 solution of different concentration, and bath heating was carried out in different constant temperature water, thenchangesat different temperatures of Ag/AgC1 potential were studied. The results show that the temperature has limited effect on the Ag/AgClelectrode potential, and the temperature coefficient of NaCI concentration is small throughout,the interference of temperature on Ag/AgC1 could be ignored.
作者
曹承伟
赵铁军
王鹏刚
刘庆
Cao Chengwei Zhao Tiejun Wang Penggang Liu Qing(School of Civil Engineering, Qingdao Technological University, Qingdao 266033 ,Shandon)
出处
《工程建设》
2017年第8期7-10,共4页
Engineering Construction
基金
国家自然科学基金重点国际合作项目(51420105015)
国家重点基础研究发展计划"973"项目(2015CB655100)