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A novel experimental device for electrochemical measurements in supercritical fluids up to 700 degrees C/1000 bar and its application in the corrosion study of superalloy Inconel 740H
Sen Lin;  Heping Li;  Liping Xu;  Yanqing Zhang;  Can Cuia
2017
Source PublicationRSC Advances
Volume7Issue:54Pages:33914-33920
Abstract

A three-electrode electrochemical study concerning electrically conductive materials submitted to supercritical fluids above 550 degrees C has not been reported in spite of its significance in many related fields. In this work, the design of a novel experimental device allowing three-electrode electrochemical measurements in high temperature and pressure fluids up to 700 degrees C/1000 bar is detailed described. In this device, pyrophyllite is used as a new electrode sealing material and the electrodes are sealed using a conical self-energizing sealing structure, which ensures the water tightness of the electrodes at pressures up to 1000 bar. The reference electrode in this device can either be an Ag/AgCl external pressure balanced reference electrode (EPBRE) or a platinum reference electrode. The potentiodynamic polarization plots and electrochemical impedance spectroscopy (EIS) of nickel-based superalloy Inconel 740H, a candidate material for Generation IV nuclear reactors, in deaerated water and chloride containing fluid (600-700 degrees C, 600-1000 bar) are presented using this device.

Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.gyig.ac.cn/handle/42920512-1/8081
Collection地球内部物质高温高压实验室
Affiliation1.Key Laboratory for High Temperature & High Pressure Study of the Earth's Interior, Institute of Geochemistry, Chinese Academy of Sciences, Lincheng West Road 99, Guiyang 550081, China
2.National Laboratory for Clean Energy (DNL), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Zhongshan Road 457, Dalian 116000, China
Recommended Citation
GB/T 7714
Sen Lin;Heping Li;Liping Xu;Yanqing Zhang;Can Cuia. A novel experimental device for electrochemical measurements in supercritical fluids up to 700 degrees C/1000 bar and its application in the corrosion study of superalloy Inconel 740H[J]. RSC Advances,2017,7(54):33914-33920.
APA Sen Lin;Heping Li;Liping Xu;Yanqing Zhang;Can Cuia.(2017).A novel experimental device for electrochemical measurements in supercritical fluids up to 700 degrees C/1000 bar and its application in the corrosion study of superalloy Inconel 740H.RSC Advances,7(54),33914-33920.
MLA Sen Lin;Heping Li;Liping Xu;Yanqing Zhang;Can Cuia."A novel experimental device for electrochemical measurements in supercritical fluids up to 700 degrees C/1000 bar and its application in the corrosion study of superalloy Inconel 740H".RSC Advances 7.54(2017):33914-33920.
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