Dehydration-rehydration behaviour of layered double hydroxides: A study by X-ray diffractometry and MAS NMR spectroscopy

A. Béres, I. Pálinkó, J. C. Bertrand, J. B. Nagy, I. Kiricsi

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Mg-Al and Zn-Al double hydroxides were synthesized and their dehydration-rehydration behaviour was studied by X-ray diffractometry and 27Al magic-angle spinning (MAS) NMR spectroscopy. On dehydration the layered structure collapsed, but treatment in water resulted in partial reconstitution of the original structure. On heat treatment part of the octahedrally coordinated aluminium, typical of layered double hydroxides, became tetrahedrally coordinated. On rehydration some of the tetrahedral aluminium became octahedrally coordinated again.

Original languageEnglish
Pages (from-to)13-16
Number of pages4
JournalJournal of Molecular Structure
Volume410-411
DOIs
Publication statusPublished - 1997

Fingerprint

Hydroxides
Magic angle spinning
Fluid Therapy
Aluminum
Dehydration
dehydration
X ray diffraction analysis
metal spinning
Nuclear magnetic resonance spectroscopy
hydroxides
Magnetic Resonance Spectroscopy
X-Rays
aluminum
nuclear magnetic resonance
Water Purification
spectroscopy
heat treatment
x rays
Hot Temperature
Heat treatment

Keywords

  • Al MAS NMR spectroscopy
  • Calcination
  • Mg-Al and Zn-Al layered double hydroxides
  • Rehydration
  • X-ray diffractometry

ASJC Scopus subject areas

  • Structural Biology
  • Organic Chemistry
  • Physical and Theoretical Chemistry
  • Spectroscopy
  • Atomic and Molecular Physics, and Optics

Cite this

Dehydration-rehydration behaviour of layered double hydroxides : A study by X-ray diffractometry and MAS NMR spectroscopy. / Béres, A.; Pálinkó, I.; Bertrand, J. C.; Nagy, J. B.; Kiricsi, I.

In: Journal of Molecular Structure, Vol. 410-411, 1997, p. 13-16.

Research output: Contribution to journalArticle

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AU - Nagy, J. B.

AU - Kiricsi, I.

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