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Distribution of cobalt ions in some promoted cobalt-molybdenum/alumina HDS catalysts

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Abstract

The magnetic and spectroscopic properties of some cobalt catalysts supported on Mg2+ and Zn2+ modified alumina have been studied. The results show the relevance of both the modifying divalent metal and the molibdate surface layer for the dispersity of Co2+ ions. The divalent metal decreases bulk-diffusion of cobalt ions, and the molybdate layer provides extra sites for accomodation of the cobalt ions.

Abstract

Исследовали магнитные и спектроскопические свойства некоторых кобальтовых катализаторов, нанесенных на окись алюминия, модифицированную Mg2+ и Zn2+. Показано, что оба модифицирующий двухвалентный металл и молибдат в повер-хностном слое итрают важную роль в дисперсии ионов Co2+. Двухвалентный ме-талл уменышает блочную диффузию ионов кобальта, а молибдатный слой обеспе-чивает добавочные места для заселения ионами кобальта.

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References

  1. P. C. H. Mitchell: in C. Kemball (ed.), Catalysis, p. 229: The Chemical Society, London, Vol. 1, 1977, C. Kemball, B. A. Dowden (eds.), ibid., Catalysis, p. 200, The Chemical Society, London, Vol. 4, 1981.

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  2. N. P. Martínez, P. C. H. Mitchell: Proceedings of the Climax Third International Conference on the Chemistry and Uses of Molybdenum (H. F. Barry, and P. C. H. Mitchell, eds.), p. 105. Climax Molibdenum Company, Ann Arbor, Michigan 1979.

    Google Scholar 

  3. C. Wivel, R. Candia, B. S. Clausen, S. Mørup, H. Topsøe: J. Catal., 68, 453 (1981).

    Google Scholar 

  4. F. S. Stone, R. D. J. Tilley: React. Solids, p. 262. Proc. Int. Symp., 7th., Bristol 1972.

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Author notes

  1. F. J. Lopez

    Present address: Escuela de Química, Facultad de Ingeniería, Universidad de Carabobo, Valencia, Venezuela

Authors and Affiliations

  1. Chemistry Department, the University, Whiteknights, RG6 2AD, Reading, U.K.

    F. J. Lopez & P. C. H. Mitchell

  2. Departmento de Investigación de Procesos, Intever, S. A., PO Box 76343, Caracas, Venezuela

    H. Medina & N. P. Martinez

Authors
  1. F. J. Lopez
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  2. H. Medina
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  3. N. P. Martinez
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  4. P. C. H. Mitchell
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Lopez, F.J., Medina, H., Martinez, N.P. et al. Distribution of cobalt ions in some promoted cobalt-molybdenum/alumina HDS catalysts. React Kinet Catal Lett 22, 253–258 (1983). https://doi.org/10.1007/BF02064842

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  • DOI: https://doi.org/10.1007/BF02064842

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