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

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F13%3A39896225" target="_blank" >RIV/00216275:25310/13:39896225 - isvavai.cz</a>

Alternative codes found

RIV/61989100:27640/13:86087557

Result on the web

<a href="http://www.sciencedirect.com/science/article/pii/S187220671260672X" target="_blank" >http://www.sciencedirect.com/science/article/pii/S187220671260672X</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/S1872-2067(12)60672-X" target="_blank" >10.1016/S1872-2067(12)60672-X</a>

Result language

angličtina

Original language name

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

Original language 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 NiOparticles (22-32 nm) over Ni/Al2O3 catalysts decreased the selectivity for ethene.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

CF - Physical chemistry and theoretical chemistry

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2013

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Chinese Journal of Catalysis

ISSN

0253-9837

e-ISSN

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Volume of the periodical

34

Issue of the periodical within the volume

10

Country of publishing house

CN - CHINA

Number of pages

9

Pages from-to

1905-1913

UT code for WoS article

000325601000016

EID of the result in the Scopus database

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