The Effect of the Reversed Micellar Systems on the Catalytic Activity of Monodisperse Catalysts I. The Liquid-Phase Hydrogenation of Styrene over the Nickel Boride Catalyst Prepared in the CTAB/1-Hexanol/Water Reversed Micellar Systems

Abstract

Monodisperse nickel boride catalysts are prepared from reversed micellar systems in situ and used directly as the catalysts of styrene hydrogenation. In order to investigate the influence of particle size and the effect of micellar components on the hydrogenating activity of nickel boride catalysts, the hydrogenation of styrene over nickel boride catalysts has been done, respectively, in ethanol solution, reversed micellar solution and various mixtures of reversed micellar solution with ethanol. The experimental results have shown that monodisperse nickel boride particles exhibit higher hydrogenation activity than those prepared in ethanol solution. On the other hand, the presence of a micellar system has an inhibiting effect on the hydrogenation activity of nickel boride particles, and the inhibiting effect is discussed in detail.

Key words:

• catalyst
• reversed micellar solution
• CTAB
• hydrogenation

Notes

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