Delaminating and restacking MgAl-layered double hydroxide monitored and characterized by a range of instrumental methods

Szabolcs Muráth, Zoltán Somosi, Ildikó Y. Tóth, Etelka Tombácz, P. Sipos, I. Pálinkó

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

The delamination-restacking properties of MgAl-layered double hydroxide (MgAl-LDH) were studied in various solvents. The LDH samples were successfully delaminated in polar amides (formamide, . N-methylformamide, N-methylacetamide). Usually, delamination was finalized by ultrasonic treatment. As rehydrating solutions, numerous Na-salts with single-, double- and triple-charged anions were used. Reconstruction was accomplished with anions of one or two negative charges, but triple-charged ones generally disrupted the rebuilding process, likely, because their salts with the metals of the LDH are very stable, and the thin layers can more readily transform to salts than the ordered materials. Samples and delamination-restacking processes were characterized by X-ray diffractometry (XRD), infrared spectroscopy (IR), dynamic light scattering (DLS), scanning electron microscopy (SEM) and energy-dispersive X-ray analysis (EDX).

Original languageEnglish
JournalJournal of Molecular Structure
DOIs
Publication statusAccepted/In press - Sep 3 2016

Fingerprint

Delamination
Salts
methylformamide
Anions
Energy dispersive X ray analysis
Dynamic light scattering
Amides
X ray diffraction analysis
Infrared spectroscopy
Ultrasonics
Metals
Scanning electron microscopy
hydroxide ion

Keywords

  • Delamination
  • MgAl-layered double hydroxide
  • Restacking
  • Structural characterization

ASJC Scopus subject areas

  • Analytical Chemistry
  • Spectroscopy
  • Organic Chemistry
  • Inorganic Chemistry

Cite this

Delaminating and restacking MgAl-layered double hydroxide monitored and characterized by a range of instrumental methods. / Muráth, Szabolcs; Somosi, Zoltán; Tóth, Ildikó Y.; Tombácz, Etelka; Sipos, P.; Pálinkó, I.

In: Journal of Molecular Structure, 03.09.2016.

Research output: Contribution to journalArticle

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AU - Sipos, P.

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