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Stability of Electrode Materials During Electrolysis in LiCl-KCl Melt
Corresponding Author(s) : Sang-Eun Bae
Asian Journal of Chemistry,
Vol. 26 No. 13 (2014): Vol 26 Issue 13
Abstract
Tungsten, molybdenum and carbon were tested for the electrodes in LiCl-KCl melt at 450 °C using electrochemical and scanning electron microscopic techniques. Open circuit potentials for the W and Mo electrodes were stabilized near -0.23 and -0.41 V, respectively while that of the carbon electrode is slowly shifted from 0 to -0.33 V. Cyclic voltammetry and SEM results show that the metal electrodes can be corroded in an anodic potential range. The carbon electrode was stable at a potential more positive than -1.0 V but became coarse at a more negative potential. Using these results, the electrode materials were evaluated for usage in LiCl-KCl melt and relatively stable electrode materials for the pyrochemical process were suggested.
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- J.H. Yoo, B.J. Lee, H.S. Lee and E.H. Kim, J. Kor. Radioact. Waste Soc., 5, 283 (2007).
- J.H. Yoo, C.S. Seo, E.H. Kim and H.S. Lee, Nucl. Eng. Technol., 40, 581 (2008); doi:10.5516/NET.2008.40.7.581.
- T. Nagai, A. Uehara, T. Fujii, O. Shirai, N. Sato and H. Yamana, J. Nucl. Sci. Technol., 42, 1025 (2005); doi:10.1080/18811248.2005.9711055.
- D.H. Kim, S.E. Bae, J.Y. Kim, T.H. Park, Y.J. Park and K. Song, Asian J. Chem., 25, 7055 (2013); doi:10.14233/ajchem.2013.18.
- J.Y. Kim, Y.S. Choi, S.E. Bae, I. Yum, D.H. Kim, J.W. Yeon and K. Song, Asian J. Chem., 25, 7028 (2013); doi:10.14233/ajchem.2013.10.
- J.H. Lee, Y.H. Kang, S.C. Hwang, I.B. Shim, E.H. Kim and S.W. Park, Nucl. Technol., 162, 135 (2008).
- Y.H. Kang, J.H. Lee, S.C. Hwang, J.B. Shim, E.H. Kim and S.W. Park, Carbon, 44, 3142 (2006); doi:10.1016/j.carbon.2006.05.026.
- J.C. Gabriel, D. Vincent, J. Bouteillon, J.C. Poignet, V.A. Volkovich and T.R. Griffiths, Electrochim. Acta, 44, 4619 (1999); doi:10.1016/S0013-4686(99)00176-0.
- S.-E. Bae, Y.J. Park, S.K. Min, Y.H. Cho and K. Song, Electrochim. Acta, 55, 3022 (2010); doi:10.1016/j.electacta.2009.12.075.
- S.-E. Bae, Y.-H. Cho, Y.J. Park, H.J. Ahn and K. Song, Electrochem. Solid-State Lett., 13, F25 (2010); doi:10.1149/1.3465303.
- M. Gibilaro, L. Massot, P. Chamelot and P. Taxil, J. Nucl. Mater., 382, 39 (2008); doi:10.1016/j.jnucmat.2008.09.004.
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References
J.H. Yoo, B.J. Lee, H.S. Lee and E.H. Kim, J. Kor. Radioact. Waste Soc., 5, 283 (2007).
J.H. Yoo, C.S. Seo, E.H. Kim and H.S. Lee, Nucl. Eng. Technol., 40, 581 (2008); doi:10.5516/NET.2008.40.7.581.
T. Nagai, A. Uehara, T. Fujii, O. Shirai, N. Sato and H. Yamana, J. Nucl. Sci. Technol., 42, 1025 (2005); doi:10.1080/18811248.2005.9711055.
D.H. Kim, S.E. Bae, J.Y. Kim, T.H. Park, Y.J. Park and K. Song, Asian J. Chem., 25, 7055 (2013); doi:10.14233/ajchem.2013.18.
J.Y. Kim, Y.S. Choi, S.E. Bae, I. Yum, D.H. Kim, J.W. Yeon and K. Song, Asian J. Chem., 25, 7028 (2013); doi:10.14233/ajchem.2013.10.
J.H. Lee, Y.H. Kang, S.C. Hwang, I.B. Shim, E.H. Kim and S.W. Park, Nucl. Technol., 162, 135 (2008).
Y.H. Kang, J.H. Lee, S.C. Hwang, J.B. Shim, E.H. Kim and S.W. Park, Carbon, 44, 3142 (2006); doi:10.1016/j.carbon.2006.05.026.
J.C. Gabriel, D. Vincent, J. Bouteillon, J.C. Poignet, V.A. Volkovich and T.R. Griffiths, Electrochim. Acta, 44, 4619 (1999); doi:10.1016/S0013-4686(99)00176-0.
S.-E. Bae, Y.J. Park, S.K. Min, Y.H. Cho and K. Song, Electrochim. Acta, 55, 3022 (2010); doi:10.1016/j.electacta.2009.12.075.
S.-E. Bae, Y.-H. Cho, Y.J. Park, H.J. Ahn and K. Song, Electrochem. Solid-State Lett., 13, F25 (2010); doi:10.1149/1.3465303.
M. Gibilaro, L. Massot, P. Chamelot and P. Taxil, J. Nucl. Mater., 382, 39 (2008); doi:10.1016/j.jnucmat.2008.09.004.
P. Allongue, C. Henry de Villeneuve, S. Morin, R. Boukherroub and D.D.M. Wayner, Electrochim. Acta, 45, 4591 (2000); doi:10.1016/S0013-4686(00)00610-1.