HIGH-TEMPERATURE REFERENCE ELECTRODE, VENTURI FLOW TIP FOR A HIGH-TEMPERATURE REFERENCE ELECTRODE, AND ENGINEERED SALT BRIDGE FOR A HIGH-TEMPERATURE REFERENCE ELECTRODE

Abstract: a high-temperature reference electrode (htre) for measuring electrochemical characteristics of a molten salt test composition, includes a metal housing tube which defines an inner lumen, a thermocouple reference wire disposed within the metal housing tube inner lumen and spaced apart from the inner surface, a molten reference salt disposed in the metal housing tube in contact with the thermocouple reference wire, and a porous membrane disposed at a bottom end of the metal housing tube. the thermocouple includes a reference metal. the molten reference salt includes a salt corresponding to the molten salt test composition and a salt of the reference metal. a venturi flow tip or end cap for a htre may be used with flowing high-temperature molten salts. an engineered salt bridge may be used to fabricate a htre using a commercial off-the-shelf low-temperature reference electrode.

Inventor(s): James J. Steppan, Byron S. Millet, Lee C. Sorensen, Thomas A. Meaders

CPC Classification: G01N27/301 (INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES (measuring or testing processes other than immunoassay, involving enzymes or microorganisms , ))

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