Effect of zeolite support on catalytic activity of Nio clusters |
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| Authors: | J. Pospí?il and E. Drahorádová |
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| Affiliation: | (1) J. Heyrovsky Institute of Physical Chemistry and Electrochemistry, Czechoslovak Academy of Sciences, 182 23 Prague, Czechoslovakia;(2) Present address: 1st Dept. of Medicine, Charles University, U. Nemocnice 2, 128 08 Prague 2, Czechoslovakia |
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| Abstract: | Zeolite Y, partially dealuminated under hydrothermal conditions, is used as a support for nickel clusters. The effect of the zeolite structure and of the means of applying the Ni2+ cations on the reactivity of dispersed nickel in CO methanation has been studied. The highest conversion was obtained on samples with developed secondary porosity, impregnated with the nickel ammine complex, [Ni(H2O)2 (NH3)4]Cl2. The data obtained are discussed from the point of view of the effect of secondary porosity and the means of introducing the parent Ni2+ ions on the localization and thermal stability of Nio clusters.
                            .  Ni2+ Nio CO.  , Ni, [Ni(H2O)2(NH3)4]Cl2.   , .
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