Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
권호 표지
DOI QR코드

DOI QR Code

Redox Equilibrium of Antimony by Square Wave Voltammetry Method in CRT Display Glass Melts

  • Jung, Hyun-Su (Faculty of Materials Science add Nano-Chemical Engineering, Kunsan National University) ;
  • Kim, Ki-Dong (Faculty of Materials Science add Nano-Chemical Engineering, Kunsan National University) ;
  • Kim, Hyo-Kwang (Faculty of Materials Science add Nano-Chemical Engineering, Kunsan National University) ;
  • Kim, Young-Ho (Faculty of Materials Science add Nano-Chemical Engineering, Kunsan National University)
  • Published : 2007.01.31
Download PDF
⟨ Previous Next ⟩

Abstract

Fining and homogenization of melts during batch melting is closely related to the redox reaction of polyvalent element M (M: Sb, As etc), $M^{(x+n)+}+n/2O^{2-}{\rightarrow}M^{x+}+n/4O_2$. In this study, square wave voltammetry (SWV) measurements were performed to examine the redox behavior of an antimony ion in cathode ray tube (CRT) glass melts. According to results, well-separated two peaks are shown at low temperature while only one peak is shown at high temperature in voltammograms, which reveals that redox reaction of antimony consist of two steps: $Sb^{5+}/Sb^{3+}\;and\;Sb^{3+}/Sb^0$, depending on the temperature. Based on the peak potential shown in the voltammogram, the thermodynamic data and the redox ratio for two redox couple were determined.

Keywords

References

  1. C. Ruessel and C. E. Freude, 'Voltammetric Studies of the Redox Behavior of Various Multivalent Ions in Soda-Lime- Silica Glass Melts,' Phys. Chem. Glasses, 30 [2] 62-8 (1989)
  2. C. Ruessel and E. Freude, 'Voltammetric Studies in a Soda-Lime-Silica Glass Melt Containing Two Different Polyvalent Ions,' Glastech. Berichte, 63 [6] 149-153 (1990)
  3. C. Ruessel and G. Sprachmann, 'Electrochemical Methods for Investigations in Molten Glass, Illustrated at Iron- and Arsenic-Doped Soda-Lime-Silica Glass Melts,' J. Non-Crys. Solids, 127 197-206 (1991) https://doi.org/10.1016/0022-3093(91)90143-T
  4. S. Gerlach, O. Claussen, and C. Ruessel, 'A Voltammetric Study on the Thermodynamics of the $Fe_{3+}/Fe_{2+}$-Equilibrium in Alkali-Lime-Alumosilicate Melts,' J. Non-Crys. Solids, 248 92-98 (1992) https://doi.org/10.1016/S0022-3093(99)00103-9
  5. T. Hayashi and W. G. Dorfeld, 'Electrochemical Study of $As_{3+}/As_{5+}$ Equilibrium in a Barium Borosilicate Glass Melt,' J. Non-Cryst. Solid, 177 331-39 (1994) https://doi.org/10.1016/0022-3093(94)90547-9
  6. O. Claussen, C. Ruessel, and A. Matthai, 'Electrochemical Studies on the Fining of Glass,' June 9-12, pp. 57-64, Proceeding of IV ESG Conference on Glass Science and Technology, Vaexjoe, Sweden, 1997
  7. O. Claussen and C. Ruessel, 'Thermodynamics of Some Transition Metal Ions in a Borosilicate Glass Melt,' Phys. Chem. Glasses, 38 227-31 (1997)
  8. A. W. M. Wondergem-de Best, 'Redox Behavior and Fining of Molten Glass,' pp. 122-127, in Ph.D thesis at Technical University Eindhoven Netherlands, 1994
  9. T. Tran and M. P. Brungs, 'Application of Oxygen Electrodes in Glass Melts, Part 1. Oxygen Reference Electrode,' Phys. Chem. Glasses, 21 [4] 133-40 (1980)

Cited by

  1. Redox Reaction of Multivalent Ions in Glass Melts vol.52, pp.2, 2015, https://doi.org/10.4191/kcers.2015.52.2.83
  2. Nanocomposite Fibers Prepared by Electrospinning of Ti-PCS Mixed Solution vol.53, pp.3, 2015, https://doi.org/10.9713/kcer.2015.53.3.276
  3. Evaluation of voltammetric redox potential for Fe3+/Fe2+ in silicate liquids vol.117, pp.1372, 2009, https://doi.org/10.2109/jcersj2.117.1317