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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/AlEt3 system
Author: de Souza, MO
Rodrigues, LR
Pastore, HO
Ruiz, JAC
Gengembre, L
Gauvin, RM
de Souza, RF
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), N-2 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. (c) 2006 Elsevier Inc. All rights reserved.
Subject: nickel
Country: Holanda
Editor: Elsevier Science Bv
Citation: Microporous And Mesoporous Materials. Elsevier Science Bv, v. 96, n. 41699, n. 109, n. 114, 2006.
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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