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Determination of the oxidation states of bismuth and copper in superconductor Bi-Ca-Sr-Cu-O by oxidation-reduction titration

Bestimmung der Oxidationsstufen von Bismut und Kupfer im Supraleiter Bi-Ca-Sr-Cu-O durch Redoxtitration

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Summary

The oxidation state of the superconductor Bi-Ca-Sr-Cu-O was determined by two procedures. One was ferrous-chromate titration after dissolution of the sample in manganous nitrate solution. The other was the titration after dissolution in ferrous ion solution. The former procedure gives the concentration of a state like pentavalent bismuth and the latter gives the sum of concentrations of a state like pentavalent bismuth and a state like trivalent copper or peroxide. The result of the titration shows that the superconductor oxide has the state like pentavalent bismuth but not like that of trivalent copper. This is a striking contrast to YBa2Cu3O7−y having a high concentration of the latter state. Although the result was compared with X-ray photoelectron spectra, a clear relationship between them was not obtained.

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References

  1. Blank DHA, Flokstra J, Gerritsma GJ, Van De Klunder LJM, Velders GJM (1987) Physica 145B:222

    Google Scholar 

  2. Zhang Y-C, Liu J-H, Dwight K, Rieger PH, Wold A (1987) Solid State Commun 63:765

    Article  CAS  Google Scholar 

  3. Eickenbusch H, Paulus W, Schollhorn R, Schlogl R (1987) Mat Res Bull 22:1505

    Article  CAS  Google Scholar 

  4. Bazarotti A, De Crescenzi A, Giovannelia C, Messi R, Motta N, Patelia F, Sgarlata A (1987) Phys Rev B 36:8285

    Article  Google Scholar 

  5. Lytle FW, Greegor RB (1988) Phys Rev B 37:1550

    Article  Google Scholar 

  6. Bianconi A, Castellano AC, De Santis A, Delogu P, Gargano A, Giogi R (1987) Solid State Commun 63:1135

    Article  CAS  Google Scholar 

  7. Bianconi A, Bundnick J, Fontaine AM, Lagarde P, Marcelli A, Tolentino A, Chamberland B, Michel C, Raveau B, Demazeau G (1988) Phys Lett A 127:285

    Article  CAS  Google Scholar 

  8. Kachel T, Sen P, Dauth B, Campagna M (1988) Z Phys B-Condens Matt 70:137

    Article  CAS  Google Scholar 

  9. Fujimori A, Takayama-Muromachi E, Uchida Y (1987) Solid State Commun 63:857

    Article  CAS  Google Scholar 

  10. Yamoff JA, Clatke DR, Drube W, Karlsson UO, Taleb-Ibrajimi A, Himpsel FJ (1987) Phys Rev B 36:3967

    Article  Google Scholar 

  11. De Bethune, Loud NAS “Standard Aqueous Electrode Potentials and Temperature Coefficients at 25” Clifford A Hampel, III (1964)

  12. Charlot G (1957) L'analyse quantitative et les reactions en solution. Masson, Paris

    Google Scholar 

  13. Tarascon JM, McKinnon WR, Barboux P, Hwang DM, Bagley BG, Greene LH, Hull GW, LePage Y, Stoffel N, Giroud M (1988) Phys Rev B36:8885

    Article  Google Scholar 

  14. Oku M, Kimura J, Hosoya M, Takada K, Hirokawa K (1988) Fresenius Z Anal Chem 332:237

    Article  CAS  Google Scholar 

  15. Shafer MW, De Groot RA, Plechaty MM, Scilla GJ (1988) Phys Script C 153–155:836

    Google Scholar 

  16. Kohiki S, Wada T, Kawashima S, Takagi H, Uchida S, Tanaka S (1988) Phys Rev B 38:7051

    Article  CAS  Google Scholar 

  17. Hüfner S, Wertheim GK (1975) Phys Rev B11:678; Phys Rev B11:5197; Phys Rev Lett 35:53

    Article  Google Scholar 

Download references

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Authors and Affiliations

  1. The Institute for Materials Research, Tohoku University, Sendai, Japan

    Masaoki Oku, Jin Kimura, Mamoru Omori & Kichinosuke Hirokawa

Authors
  1. Masaoki Oku
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  2. Jin Kimura
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  3. Mamoru Omori
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  4. Kichinosuke Hirokawa
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Oku, M., Kimura, J., Omori, M. et al. Determination of the oxidation states of bismuth and copper in superconductor Bi-Ca-Sr-Cu-O by oxidation-reduction titration. Z. Anal. Chem. 335, 382–385 (1989). https://doi.org/10.1007/BF00482103

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  • DOI: https://doi.org/10.1007/BF00482103

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