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http://dx.doi.org/10.5012/bkcs.2009.30.1.133

A Quartz Tube Based Ag/Ag+ Reference Electrode with a Tungsten Tip Junction for an Electrochemical Study in Molten Salts  

Park, Y.J. (Nuclear Chemistry Research Division, Korea Atomic Energy Research Institute)
Jung, Y.J. (Nuclear Chemistry Research Division, Korea Atomic Energy Research Institute)
Min, S.K. (Nuclear Chemistry Research Division, Korea Atomic Energy Research Institute)
Cho, Y.H. (Nuclear Chemistry Research Division, Korea Atomic Energy Research Institute)
Im, H.J. (Nuclear Chemistry Research Division, Korea Atomic Energy Research Institute)
Yeon, J.W. (Nuclear Chemistry Research Division, Korea Atomic Energy Research Institute)
Song, K. (Nuclear Chemistry Research Division, Korea Atomic Energy Research Institute)
Publication Information
Bulletin of the Korean Chemical Society / v.30, no.1, 2009 , pp. 133-136 More about this Journal
Abstract
A newly designed Ag/$Ag^+$ reference electrode in a quartz tube with a tungsten tip junction (W-tip-Quartz- REF) was fabricated and its electrochemical performance was compared with a conventional Pyrex tube-based Ag/$Ag^+$ reference electrode (Py-REF). The results of the electrochemical potential measurements with the W-tip-Quartz- REF and the Py-REF in the LiCl-KCl eutectic melts for a wide temperature range proved that the oxide layer on the surface of the tungsten metal tip provided a high ionic conduction. Stability of our newly designed W-tip- Quartz-REF was tested by measuring a junction potential for 12 hours at 700${^{\circ}C}$. The results of the cyclic voltammetric measurement indicated that the Ag/$Ag^+$ reference electrode in the quartz tube with a tungsten tip junction can provide a good performance for a wide temperature range.
Keywords
Reference electrode; Quartz tube; Electrochemical; Eutectic melts;
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