Reference electrode for electrochemical measurements at high temperatures
Abstract
A reference electrode which is stable over a wide range of temperatures, pressures and chemical conditions is provided. The subject reference electrode according to the present invention comprises a tubular enclosure composed of quartz having a distal, closed end and a proximal, open end. An insulating ceramic rod is seemingly connected to the opening in the closed distal end of the enclosure to form micro-cracks between the ceramic rod and the quartz enclosure (called a cracked junction, CJ). The CJ gives a very tortuous path for ion conduction from inside the reference electrode (RE) to a working electrode (WE). Inside the tubular enclosure is an electrical lead (e.g., a silver wire) disposed in an electrolyte comprising a mixture of alkaline metal salts (e.g., AgCl and KCl), extending from the electrolyte upward through a sealing means at the proximal end of the quartz enclosure.
- Inventors:
- Issue Date:
- Research Org.:
- Univ. of Arizona, Tucson, AZ (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1805463
- Patent Number(s):
- 10908119
- Application Number:
- 15/778,558
- Assignee:
- Arizona Board of Regents on behalf of Arizona State University (Tucson, AZ)
- DOE Contract Number:
- EE0005942
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 11/21/2016
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Gervasio, Dominic Francis, Elsentriecy, Hassan, and Pugazhendhi, Perumal. Reference electrode for electrochemical measurements at high temperatures. United States: N. p., 2021.
Web.
Gervasio, Dominic Francis, Elsentriecy, Hassan, & Pugazhendhi, Perumal. Reference electrode for electrochemical measurements at high temperatures. United States.
Gervasio, Dominic Francis, Elsentriecy, Hassan, and Pugazhendhi, Perumal. Tue .
"Reference electrode for electrochemical measurements at high temperatures". United States. https://www.osti.gov/servlets/purl/1805463.
@article{osti_1805463,
title = {Reference electrode for electrochemical measurements at high temperatures},
author = {Gervasio, Dominic Francis and Elsentriecy, Hassan and Pugazhendhi, Perumal},
abstractNote = {A reference electrode which is stable over a wide range of temperatures, pressures and chemical conditions is provided. The subject reference electrode according to the present invention comprises a tubular enclosure composed of quartz having a distal, closed end and a proximal, open end. An insulating ceramic rod is seemingly connected to the opening in the closed distal end of the enclosure to form micro-cracks between the ceramic rod and the quartz enclosure (called a cracked junction, CJ). The CJ gives a very tortuous path for ion conduction from inside the reference electrode (RE) to a working electrode (WE). Inside the tubular enclosure is an electrical lead (e.g., a silver wire) disposed in an electrolyte comprising a mixture of alkaline metal salts (e.g., AgCl and KCl), extending from the electrolyte upward through a sealing means at the proximal end of the quartz enclosure.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2021},
month = {2}
}