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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 30, Number 1
BKCSDE 30(1)
January 20, 2009

Title	A Quartz Tube Based Ag/Ag+ Reference Electrode with a Tungsten Tip Junction for an Electrochemical Study in Molten Salts
Author	Y J Park*, Y J Jung, S K Min, Y H Cho, H J Im, J W Yeon, K Song
Keywords	Reference electrode, Quartz tube, Electrochemical, Eutectic melts
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 700oC. 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.
Page	133 - 136
Full Text	PDF

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