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Thermal evolution of Mg-Al and Ni-Al layered double hydroxides: the structure of the dehydrated phase.

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Titel: Thermal evolution of Mg-Al and Ni-Al layered double hydroxides: the structure of the dehydrated phase.
Autoren: Cherepanova S; Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russian Federation., Leont'eva N; Institute of Hydrocarbon Processing, Siberian Branch of the Russian Academy of Sciences, Omsk, Russian Federation., Drozdov V; Institute of Hydrocarbon Processing, Siberian Branch of the Russian Academy of Sciences, Omsk, Russian Federation., Doronin V; Institute of Hydrocarbon Processing, Siberian Branch of the Russian Academy of Sciences, Omsk, Russian Federation.
Quelle: Acta crystallographica. Section A, Foundations and advances [Acta Crystallogr A Found Adv] 2016 Nov 01; Vol. 72 (Pt 6), pp. 651-659. Date of Electronic Publication: 2016 Oct 31.
Publikationsart: Journal Article; Research Support, Non-U.S. Gov't
Sprache: English
Info zur Zeitschrift: Publisher: John Wiley & Sons Ltd Country of Publication: United States NLM ID: 101620182 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 2053-2733 (Electronic) Linking ISSN: 20532733 NLM ISO Abbreviation: Acta Crystallogr A Found Adv Subsets: PubMed not MEDLINE
Imprint Name(s): Original Publication: Malden, MA : John Wiley & Sons Ltd, [2014]-
Abstract: Simulation of X-ray diffraction patterns on the basis of the models of one-dimensional disordered crystals was used to investigate the structure of the dehydrated phase produced by dehydration of Mg-Al and Ni-Al layered double hydroxides at a temperature of ∼473-498 K. It was found that the removal of water molecules transforms the initial structure, which is a mixture of 3R 1 and 2H 1 polytypes, into a structure that comprises preferentially fragments of 3R 2 and 1H polytypes and has some turbostratic disorder.
Contributed Indexing: Keywords: diffraction-pattern simulation; hydrotalcite structure; layered double hydroxides; turbostratic disorder
Entry Date(s): Date Created: 20161104 Date Completed: 20170526 Latest Revision: 20170526
Update Code: 20250114
DOI: 10.1107/S2053273316014868
PMID: 27809204
Datenbank: MEDLINE
Beschreibung
Abstract:Simulation of X-ray diffraction patterns on the basis of the models of one-dimensional disordered crystals was used to investigate the structure of the dehydrated phase produced by dehydration of Mg-Al and Ni-Al layered double hydroxides at a temperature of ∼473-498 K. It was found that the removal of water molecules transforms the initial structure, which is a mixture of 3R <subscript>1</subscript> and 2H <subscript>1</subscript> polytypes, into a structure that comprises preferentially fragments of 3R <subscript>2</subscript> and 1H polytypes and has some turbostratic disorder.
ISSN:2053-2733
DOI:10.1107/S2053273316014868