Calculations of thermal junction potential and calibration of an External Pressure-balanced Reference Electrode

摘要：

The electrochemical corrosion measurements in subcritical and supercritical aqueous solutionsrequire utilization of reliable reference electrodes. The most widely accepted reference electrode isthe external pressure-balanced reference electrode (EPBRE). This study presents the constructionand characterization of an external pressure-balanced reference electrode to be used in an autoclave.The equilibrium potential measurements were performed using this reference electrode in the Cu/Cu2+ system. The deviation of the measured potential was attributed to i) thermal junction potential, ii)liquid junction potential, and iii) Ohmic voltage drop. The available data were used to estimate themagnitude of these values and compared with the measured values for the Cu/Cu 2+ system.

作者: Tirdad Nickchi Akram Alfantazi

作者单位: Department of Materials Engineering,the University of British Columbia,Vancouver,B.C.,Canada

会议类型: 国际会议

会议名称: 3rd China-Canada Joint Workshop on Supercritical Water-Cooled Reactors(第三届中国-加拿大超临界水堆研讨会 (CCSC-2012)

会议地点: 西安

会议语种:英文

页码: 1-12

在线出版日期: 2012-04-18（万方平台首次上网日期，不代表论文的发表时间）