Fabrication and Studies of a Novel Ag/AgCl Reference Electrode  in High Temperature Molten Chloride Salts

Abstract

Abstract: A new method for the easy fabrication of a stable and long life silver/silver chloride reference electrode in molten chloride salts is described in this paper. The method is based on the fact that simply placing the silica glass in molten NaCl or its vapour in the presence of oxygen resulted in satisfactory conductivity for sodium ion and possibly calcium ion in the material.The performance of such made electrode has been investigated in a few typical chloride systems at temperatures ranging from 400 to 900℃. Due to the wholly sealed construction, the reference electrode is stable, temperature-reversible, contamination free to the molten salt, and re-usable in the same or different electrolyte systems.

Key words: Ag/AgCl, Reference electrode, Ionic conductor, Quartz

CLC Number:

O646

GAO Pei, JIN Xian-bo, WANG Di-hua, HU Xiao-hong, CHEN Zheng~*. Fabrication and Studies of a Novel Ag/AgCl Reference Electrode in High Temperature Molten Chloride Salts[J]. Journal of Electrochemistry, 2005, 11(1): 8-11.

References

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Fabrication and Studies of a Novel Ag/AgCl Reference Electrode in High Temperature Molten Chloride Salts

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