Promoted NiO Catalysts for the Oxidative Dehydrogenation of Ethane

被引：0
|
作者：
José M. López Nieto
Benjamín Solsona
Robert K. Grasselli
Patricia Concepción
机构：
[1] UPV-CSIC,Instituto de Tecnología Química
[2] Universitat de Valencia,Departamento de Ingeniería Química
[3] University of Delaware,Center for Catalytic Science and Technology
[4] Technische Universität München,Department of Chemistry
来源：
Topics in Catalysis | 2014年 / 57卷
关键词：
Nickel oxide; Ethane; Oxidative dehydrogenation; Valence; Promoters; Acidity and basicity;
D O I：
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中图分类号：
学科分类号：
摘要：
Metal oxide promoted NiO catalysts with a Ni/(Me + Ni) atomic ratio 0.92 have been investigated for the oxidative dehydrogenation of ethane. These materials have been characterized by several techniques (N2-adsorption, X-ray diffraction, X-ray photoelectron spectroscopy and Fourier transformed infrared spectroscopy of adsorbed CO and ethylene). The nature of surface sites is strongly influenced by the valence and the acid/base characteristics of the metal oxide promoters, which have a great impact on the selectivity to ethylene. Accordingly, a clear correlation between selectivity to ethylene and the valence of the promoter has been observed in the present work. Additionally, the acidity of the catalyst also enhances the selectivity to ethylene.
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页码：1248 / 1255
页数：7
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