Solid-State Interactions in Li-Doped Ni/MgO Catalysts Full article
Journal |
Journal of the Chemical Society - Faraday Transactions (1990-1998, in 1999 become Physical Chemistry Chemical Physics)
ISSN: 0956-5000 |
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Output data | Year: 1998, Volume: 94, Number: 22, Pages: 3385-3391 Pages count : 7 DOI: 10.1039/a806033i | ||||||
Tags | SUPPORTED NICKEL-CATALYSTS; MAGNESIUM-OXIDE CATALYSTS; METHANE; STEAM; CALCINATION; REACTIVITY | ||||||
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Abstract:
The effects of the addition of Li (Liat:Niat ≈ 1:3) on the structure and reducibility of a 19% Ni/MgO catalyst, calcined at TC 400–800 °C, have been investigated by X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), temperature-programmed desorption and reduction (TPD and TPR) and transmission electron microscopy (TEM). Li causes melting of the MgO matrix, markedly altering the morphology of the Ni/MgO catalyst. Li enhances the diffusion of Ni ions into the MgO lattice and the consequent formation of an NixMg(1−x)O solid solution. Li also promotes the reduction of the Ni/MgO system, enabling easier extraction of Ni2+ ions located in the MgO lattice. Solid-state interactions accounting for marked changes in both the physico-chemical properties and the reactivity of the Li-doped Ni/MgO catalyst are highlighted.
Cite:
Arena F.
, Frusteri F.
, Plyasova L.
, Parmaliana A.
Solid-State Interactions in Li-Doped Ni/MgO Catalysts
Journal of the Chemical Society - Faraday Transactions (1990-1998, in 1999 become Physical Chemistry Chemical Physics). 1998. V.94. N22. P.3385-3391. DOI: 10.1039/a806033i WOS Scopus РИНЦ
Solid-State Interactions in Li-Doped Ni/MgO Catalysts
Journal of the Chemical Society - Faraday Transactions (1990-1998, in 1999 become Physical Chemistry Chemical Physics). 1998. V.94. N22. P.3385-3391. DOI: 10.1039/a806033i WOS Scopus РИНЦ
Dates:
Submitted: | Jul 31, 1998 |
Accepted: | Sep 14, 1998 |
Published print: | Nov 1, 1998 |
Identifiers:
Web of science | WOS:000077082700014 |
Scopus | 2-s2.0-33748617582 |
Elibrary | 13304077 |
Chemical Abstracts | 1998:718858 |
Chemical Abstracts (print) | 129:347664 |
OpenAlex | W2031718270 |