About: Precursors of active Ni species in Ni/Al2O3 catalysts for oxidative dehydrogenation of ethane

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About: Precursors of active Ni species in Ni/Al2O3 catalysts for oxidative dehydrogenation of ethane Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://www.sciencedirect.com/science/article/pii/S187220671260672X
Description	Ni/Al2O3 catalysts for oxidative dehydrogenation (ODH) of ethane were prepared by impregnation of Al2O3 with nickel acetate or nickel nitrate, and by mechanical mixing of NiO and Al2O3. The Ni-based catalysts were characterized by N-2 adsorption-desorption, X-ray diffraction, diffuse reflectance UV-visible diffuse reflectance spectroscopy, and temperature-programmed reduction of hydrogen. The results showed that formation of crystalline NiO particles with a size of < 8 nm and/or non-stoichiometric NiO species in the Ni/Al2O3 catalysts led to more active species in ODH of ethane under the investigated reaction conditions. In contrast, tetrahedral Ni species present in the catalysts led to higher selectivity for ethene. Formation of large crystalline NiO particles (22-32 nm) over Ni/Al2O3 catalysts decreased the selectivity for ethene. Ni/Al2O3 catalysts for oxidative dehydrogenation (ODH) of ethane were prepared by impregnation of Al2O3 with nickel acetate or nickel nitrate, and by mechanical mixing of NiO and Al2O3. The Ni-based catalysts were characterized by N-2 adsorption-desorption, X-ray diffraction, diffuse reflectance UV-visible diffuse reflectance spectroscopy, and temperature-programmed reduction of hydrogen. The results showed that formation of crystalline NiO particles with a size of < 8 nm and/or non-stoichiometric NiO species in the Ni/Al2O3 catalysts led to more active species in ODH of ethane under the investigated reaction conditions. In contrast, tetrahedral Ni species present in the catalysts led to higher selectivity for ethene. Formation of large crystalline NiO particles (22-32 nm) over Ni/Al2O3 catalysts decreased the selectivity for ethene. (en)
Title	Precursors of active Ni species in Ni/Al2O3 catalysts for oxidative dehydrogenation of ethane Precursors of active Ni species in Ni/Al2O3 catalysts for oxidative dehydrogenation of ethane (en)
skos:prefLabel	Precursors of active Ni species in Ni/Al2O3 catalysts for oxidative dehydrogenation of ethane Precursors of active Ni species in Ni/Al2O3 catalysts for oxidative dehydrogenation of ethane (en)
skos:notation	RIV/61989100:27640/13:86087557!RIV14-MSM-27640___
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(EE2.3.30.0016), P(EE2.3.30.0058)
http://linked.open...iv/cisloPeriodika	10
http://linked.open...vai/riv/dodaniDat	2014
http://linked.open...aciTvurceVysledku	Matějová, Lenka
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Vysoká škola báňská - Technická univerzita Ostrava / Centrum nanotechnologií
http://linked.open...dnocenehoVysledku	98516
http://linked.open...ai/riv/idVysledku	RIV/61989100:27640/13:86087557
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	nickel species; oxidative dehydrogenation; ethane; alumina; nickel (en)
http://linked.open.../riv/klicoveSlovo	nickel ethane oxidative dehydrogenation nickel species alumina
http://linked.open...odStatuVydavatele	CN - Čínská lidová republika
http://linked.open...ontrolniKodProRIV	[E98B560F6528]
http://linked.open...i/riv/nazevZdroje	Chinese Journal of Catalysis
http://linked.open...in/vavai/riv/obor	CF
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	7 (xsd:int)
http://linked.open...vavai/riv/projekt	Opportunities for young researchers Development of Research Teams at the University of Pardubice
http://linked.open...UplatneniVysledku	2013
http://linked.open...v/svazekPeriodika	34
http://linked.open...iv/tvurceVysledku	Botková, Šárka Matějová, Lenka Smoláková, Lucie Čapek, Libor Priecel, Peter Kout, Martin Sołtysek, Agnieszka
http://linked.open...ain/vavai/riv/wos	000325601000016
issn	0253-9837
number of pages	9 (xsd:int)
http://bibframe.org/vocab/doi	10.1016/S1872-2067(12)60672-X
http://localhost/t...ganizacniJednotka	27640

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