Skip to main content
SpringerLink
Log in

Magnetic Methods in a Study of the Effect of the Pore Structure of Silica Gels on the Particle Size of Cobalt in Catalysts for the Fischer-Tropsch Synthesis

  • Published:
Kinetics and Catalysis Aims and scope Submit manuscript

Abstract

A magnetic method was proposed for evaluating the average particle size of cobalt metal in supported cobalt catalysts for the Fischer-Tropsch synthesis. This method includes a set of techniques such as in situ temperature-programmed reduction and in situ temperature-programmed oxidation with simultaneous magnetization measurements and the dependence of magnetization on magnetic field intensity (the field dependence method). It was found that cobalt supported on silica gel with a bimodal pore-size distribution exhibited a special behavior in topochemical processes: the majority of cobalt particles occurred in a superparamagnetic state, while a portion occurred in a multidomain state.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

REFERENCES

  1. Fu, L. and Bartholomew, C.H., J. Catal., 1985, vol. 92, p. 376.

    Article  CAS  Google Scholar 

  2. Jglesia, E., Reyes, S.C., Madon, R.J., and Soled, S.L., Adv. Catal., 1993, vol. 39, p. 221.

    Google Scholar 

  3. Khodakov, A.Y., Grihoval-Constant, A., Behara, R., and Zholobenko, V.L., J. Catal., 2002, vol. 206, p. 230.

    Article  CAS  Google Scholar 

  4. Lapidus, A. and Krylova, A., Appl. Catal., 1992, vol. 80, p. 1.

    CAS  Google Scholar 

  5. Noritatsu Tsubaki, Yi Zhang, Shouli Sun, Hisashi Mori, Yoshiharu Yoneyama, Xiaohong Li, and Kaoru Fujimoto, Catal. Commun., 2001, vol. 2, p. 311.

    CAS  Google Scholar 

  6. Pankina, G.V., Chernavskii, P.A., and Lunin, V.V., Vestn. Mosk. Univ., Ser. 2: Khim., 2003, vol. 44, no.6, p. 372.

    CAS  Google Scholar 

  7. Gregg, S.J. and Sing, K.S.W., Adsorption, Surface Area, and Porosity, New York: Academic, 1982.

    Google Scholar 

  8. Chernavskii, P.A., Pankina, G.V., Lermontov, A.S., Torbin, S.N., and Lunin, V.V., Kinet. Katal., 2002, vol. 43, no.2, p. 292.

    Google Scholar 

  9. Chernavskii, P.A., Pankina, G.V., Lermontov, A.S., and Lunin, V.V., Kinet. Katal., 2003, vol. 44, no.5, p. 718.

    Google Scholar 

  10. Chernavskii, P.A. and Lunin, V.V., Kinet. Katal., 1999, vol. 40, no.3, p. 417.

    Google Scholar 

  11. Jacobs, G., Das, T.K., Zhang, Y., Li, J., Recoillet, G., and Davis, B.H., Appl. Catal., A, 2003, vol. 233, p. 263.

    Google Scholar 

  12. Khodakov, A.Yu., Bechara, R., and Griboval-Constant, A., Appl. Catal., 2002, vol. 254, p. 273.

    Google Scholar 

  13. Petrov, Yu.I., Fizika malykh chastits (Physics of Small Particles), Moscow: Nauka, 1982.

    Google Scholar 

  14. Pankina, G.V., Chernavskii, P.A., and Lunin, V.V., Zh. Fiz. Khim. (in press).

  15. Weil, L., J. Chem. Phys., 1954, vol. 51, p. 715.

    CAS  Google Scholar 

  16. Broto, J.M. and Rakoto, H., Phys. Rev. B., 1998, vol. 57, p. 2925.

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Moscow State University, Moscow, 119899, Russia

    G. V. Pankina, P. A. Chernavskii & V. V. Lunin

Authors
  1. G. V. Pankina
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. P. A. Chernavskii
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. V. V. Lunin
    View author publications

    You can also search for this author in PubMed Google Scholar

Additional information

__________

Translated from Kinetika i Kataliz, Vol. 46, No. 5, 2005, pp. 764–768.

Original Russian Text Copyright © 2005 by Pankina, Chernavskii, Lunin.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Pankina, G.V., Chernavskii, P.A. & Lunin, V.V. Magnetic Methods in a Study of the Effect of the Pore Structure of Silica Gels on the Particle Size of Cobalt in Catalysts for the Fischer-Tropsch Synthesis. Kinet Catal 46, 719–723 (2005). https://doi.org/10.1007/s10975-005-0127-3

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10975-005-0127-3

Keywords

Search

Navigation