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Type: Artigo de periódico
Title: A Nano-organized Ethylene Oligomerization Catalyst: Characterization And Reactivity Of The Ni(mecn)6(bf4)2/[al]-mcm-41/alet 3 System
Author: de Souza M.O.
Rodrigues L.R.
Pastore H.O.
Ruiz J.A.C.
Gengembre L.
Gauvin R.M.
de Souza R.F.
Abstract: The complex Ni(MeCN)6(BF4)2 has been immobilized on [Al]-MCM-41 (Ni/[Al]-MCM-41) and characterized by X-ray diffraction (XRD), N2 adsorption, transmission electron microscopy (TEM), diffuse reflectance infrared spectroscopy (DRIFTS) and X-ray photoelectron spectroscopy (XPS). The heterogeneized system retains the catalytic properties of its molecular precursor: the immobilized complex associated with AlEt3 is active in heterogeneous phase ethylene oligomerization under mild reaction conditions. The AlEt3/nickel molar ratio Al/Ni has shown to be a fundamental parameter to control the selectivity of the system into 1-butene. Under typical reaction conditions, 313 K and 0.98 MPa of ethylene and Al/Ni molar ratio of 15, selectivities of ca. 84% in 1-butene have been obtained. © 2006 Elsevier Inc. All rights reserved.
Rights: fechado
Identifier DOI: 10.1016/j.micromeso.2006.06.023
Date Issue: 2006
Appears in Collections:Unicamp - Artigos e Outros Documentos

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