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Determination of the prevailing n-butenes dimerization mechanism over nickel containing Al-MCM-41/ZSM-5 mixed-phase catalysts

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Abstract

Nickel modified mixed-phase catalysts containing both mesoporous Al-MCM-41 and microporous ZSM-5 phases were synthesized via a one-pot synthesis. By varying the composition of the catalysts, optimum values regarding Si/Al ratio and nickel content for a highly selective dimerization of n-butenes were identified. An interaction of nickel sites with vicinal aluminum or acid sites can be assumed, since a correlation between Ni/(Al + Ni) ratio, catalytic activity and selectivity was found. Novel approaches to evaluate the contribution of the cationic or coordinative reaction mechanism to the overall reaction course are proposed.

Graphical abstract: Determination of the prevailing n-butenes dimerization mechanism over nickel containing Al-MCM-41/ZSM-5 mixed-phase catalysts

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Publication details

The article was received on 09 Jan 2019, accepted on 27 Mar 2019 and first published on 09 Apr 2019


Article type: Paper
DOI: 10.1039/C9CY00055K
Citation: Catal. Sci. Technol., 2019, Advance Article

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    Determination of the prevailing n-butenes dimerization mechanism over nickel containing Al-MCM-41/ZSM-5 mixed-phase catalysts

    F. Alscher, F. Nadolny, H. Frenzel, J. Knossalla, S. Peitz, E. Borovinskaya, C. Breitkopf, R. Franke and W. Reschetilowski, Catal. Sci. Technol., 2019, Advance Article , DOI: 10.1039/C9CY00055K

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