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Thermal stability of wüstite structure modified with calcium cations

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Abstract

Wüstite modified with calcium cations was prepared by high temperature fusion. Mössbauer spectroscopy and X-ray diffraction were employed to identify wüstite phases before and after thermal treatment at elevated temperatures in vacuum with a base pressure of 1.33 Pa for 60 h. Experimental results demonstrated that the location of calcium cations inside the wüstite structure could prevent disproportionation into magnetite and α-iron.

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REFERENCES

  1. R.M. Hazen, R. Jeanloz: Rev. Geophys. Space Phys., 22, 37 (1984).

    CAS  Google Scholar 

  2. L.S. Darken, R.W. Gurry: J. Am. Chem. Soc., 67, 1398 (1945).

    CAS  Google Scholar 

  3. L.S. Darken, R.W. Gurry: J. Am. Chem. Soc., 68, 798 (1946).

    Article  CAS  Google Scholar 

  4. S. Stolen, R. Glockner, F. Gronvold: Thermochim. Acta., 256, 91 (1995).

    Article  CAS  Google Scholar 

  5. D.I. Ryzonkov, S.B. Sorin: Solid State Ionics, 117, 145 (1999).

    Article  Google Scholar 

  6. T. Kodama, K. Tominaga, M. Tabata, T. Yoshida, Y. Tamaura: J. Am. Ceram. Soc., 75, 1287 (1992).

    Article  CAS  Google Scholar 

  7. C.L. Zhang, S. Li, T.H. Wu, S.Y. Peng: Mater. Chem. Phys., 58, 139 (1999).

    Article  CAS  Google Scholar 

  8. A. Pattek-Janczyk, J.C. Grenier, B. Miczko: Solid State Ionics, 117, 95 (1999).

    Article  CAS  Google Scholar 

  9. H.Z. Liu, R.Y. Xu, Z.R. Jiang, Z.N. Hu, Y.Y. Li, X.N. Li: Fe 1-x O-based catalyst for ammonia synthesis, U.S. Pat., 5846507 (1998).

  10. T. Sano, M. Tsuji, Y. Tamaura: Solid State Ionics, 104, 311 (1997).

    Article  CAS  Google Scholar 

  11. A. Tazi, R. Gerardin, F.J.O. Evrard: Mat. Res. Bull., 30, 829 (1995).

    Article  CAS  Google Scholar 

  12. C. McCammon: Science, 259, 66 (1993).

    CAS  Google Scholar 

  13. N.N. Greenwood, T.C. Gibb: Mössbauer Spectroscopy, p. 249. Chapman and Hall, London 1971.

    Google Scholar 

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Correspondence to Xiaonian Li.

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Li, X., Cen, Y., Liu, H. et al. Thermal stability of wüstite structure modified with calcium cations. Reaction Kinetics and Catalysis Letters 81, 313–320 (2004). https://doi.org/10.1023/B:REAC.0000019438.14134.3c

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  • DOI: https://doi.org/10.1023/B:REAC.0000019438.14134.3c

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