Peculiarities of Nickel Oxide Structure Transformation upon CO Hydrogenation. I. Initial Period of Catalyst Activation Full article
Journal |
Journal of Catalysis
ISSN: 0021-9517 , E-ISSN: 1090-2694 |
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Output data | Year: 1993, Volume: 144, Number: 1, Pages: 50-59 Pages count : 10 DOI: 10.1006/jcat.1993.1313 | ||||
Tags | CARBON-MONOXIDE; SURFACES; LAYERS | ||||
Authors |
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Abstract:
A study has been made of the effect of nickel oxide morphology on the mechanisms of structural transformation during activation in a CO/H2 environment using in situ X-ray powder diffraction and transmission electron microscopy. It was found that in the initial reaction stage nickel oxide structure transforms in two ways: (i) reduction of NiO to Ni with the formation of Ni/NiO system; and (ii) carbidization of NiO with the development of Ni3C/NiO catalyst. The specific phase transition has been shown to depend on the structural similarity between the crystal lattices of the parent oxide and resulting product. The obtained data revealed that interaction of NiO with CO/H2 reaction mixture is a structure sensitive reaction. The role of carbon monoxide in both topochemical processes is also discussed.
Cite:
Morozova O.S.
, Kryukova G.N.
, Ziborov A.V.
, Plyasova L.M.
Peculiarities of Nickel Oxide Structure Transformation upon CO Hydrogenation. I. Initial Period of Catalyst Activation
Journal of Catalysis. 1993. V.144. N1. P.50-59. DOI: 10.1006/jcat.1993.1313 WOS Scopus РИНЦ
Peculiarities of Nickel Oxide Structure Transformation upon CO Hydrogenation. I. Initial Period of Catalyst Activation
Journal of Catalysis. 1993. V.144. N1. P.50-59. DOI: 10.1006/jcat.1993.1313 WOS Scopus РИНЦ
Dates:
Submitted: | Oct 19, 1992 |
Accepted: | Apr 22, 1993 |
Published print: | Nov 1, 1993 |
Published online: | May 25, 2002 |
Identifiers:
Web of science | WOS:A1993MC29700006 |
Scopus | 2-s2.0-0002015515 |
Elibrary | 30812436 |
Chemical Abstracts | 1994:163130 |
Chemical Abstracts (print) | 120:163130 |
OpenAlex | W2050920293 |