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Issue 21, 2017
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Design of nanocomposites with cobalt encapsulated in the zeolite micropores for selective synthesis of isoparaffins in Fischer–Tropsch reaction

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Abstract

A new strategy for the synthesis of metal–zeolite nanocomposite materials containing metal nanoparticles only in the zeolite pores is proposed. These materials were first prepared by zeolite impregnation with metal salts which resulted in metal species located both inside the zeolite pores and on the zeolite outer surface. Then, the metal oxide nanoparticles on the external zeolite surface were selectively extracted by larger heteropolyacid molecules which cannot enter the zeolite pores. The use of cobalt–zeolite nanocomposites with cobalt nanoparticles selectively encapsulated in the zeolite pores led to significantly higher selectivity to C5–C12 branched hydrocarbons in Fischer–Tropsch synthesis with the maximum ratio of isoparaffins to n-paraffins of 5.8.

Graphical abstract: Design of nanocomposites with cobalt encapsulated in the zeolite micropores for selective synthesis of isoparaffins in Fischer–Tropsch reaction

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Article information


Submitted
21 Sep 2017
Accepted
03 Oct 2017
First published
04 Oct 2017

Catal. Sci. Technol., 2017,7, 5019-5027
Article type
Paper

Design of nanocomposites with cobalt encapsulated in the zeolite micropores for selective synthesis of isoparaffins in Fischer–Tropsch reaction

A. Carvalho, M. Marinova, N. Batalha, N. R. Marcilio, A. Y. Khodakov and V. V. Ordomsky, Catal. Sci. Technol., 2017, 7, 5019
DOI: 10.1039/C7CY01945A

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