Electrochemical Measurement of Sieverts' Constant and Solubility of Oxygen in LBE at 598–748 K. Issue 12 (10th August 2017)

• Record Type: Journal Article
• Authors: Lim, Jun; Gabriele, Manfredi; Marino, Alessandro; Gladinez, Kristof; Aerts, Alexander
• Is Part Of: Journal of the Electrochemical Society. Volume 164:Issue 12(2017)
• Page Start: H743
• Page End: H747
• Publication Date: 2017-08-10
• Subjects: Coulometric titration -- LBE -- Oxygen solubility -- Sieverts' constant; Electrochemistry -- Periodicals; 541.3705
• DOI: 10.1149/2.0231712jes
• Languages: English
• ISSNs: 0013-4651

Abstract

Abstract : The solubility of oxygen in liquid lead bismuth eutectic (LBE) was determined by using electrochemical methods. The oxygen partial pressure in oxygen saturated LBE was measured from 475 to 724 K by using an oxygen sensor comprised of yttria partially stabilized zirconia and air/LSM (Lanthanum strontium manganite) reference electrode. Sieverts' constant of the dissolved oxygen in LBE was measured from 598 to 748 K by coulometric titration method using the oxygen sensor. The measured oxygen partial pressure in oxygen saturated LBE (P O 2 ( L B E − P b O ) in bar) and Sieverts' constant of dissolved oxygen in LBE ( k for a 1 wt% standard state) are given by log P O 2 ( L B E − P b O ) = 11.52 − 22996 / T (475–724 K), log k = 3.12 − 7072/ T (598–748 K) respectively. Combining the measured data, the oxygen solubility in LBE ( C O, S in wt%) was derived and is given by log C O, S = 2.64 − 4426/ T (598–724 K).