Syntheses, characterization and catalytic activities of CaAl-layered double hydroxide intercalated Fe(III)-amino acid complexes

Gábor Varga, Zita Timár, Szabolcs Muráth, Z. Kónya, Ákos Kukovecz, Stefan Carlson, P. Sipos, I. Pálinkó

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Synthesis of intercalated composites were carried out using CaAl-LDH (layered double hydroxide) as host and the anionic form of Fe(III)-amino acid complexes as guest materials. Intercalation was attempted with two methods either introducing the preformed complexes or constructing the complex among the layers of the LDH. After optimization of the synthesis parameters, structural characterization was performed by X-ray diffractometry, scanning electron microscopy as well as mid and far infrared spectroscopies. Quantitative data about the intercalated complexes were collected by chemical analysis and X-ray absorption spectroscopy investigating the near edge region as well as the extended fine structure. Structural models based on characterization measurements are also given. Catalytic activities, selectivities and recycling abilities of the substances were studied in the oxidation reactions of cyclohexene with peracetic acid and . in situ formed iodosylbenzene as oxidants in the liquid phase. The catalysts were active in the Ullmann-type etherification coupling reaction as well. The intercalated substances were found to be efficient and highly selective catalysts with very good recycling abilities.

Original languageEnglish
JournalCatalysis Today
DOIs
Publication statusAccepted/In press - Aug 26 2016

Fingerprint

Recycling
Amino acids
Catalyst activity
Peracetic Acid
Amino Acids
Catalysts
X ray absorption spectroscopy
Catalyst selectivity
Intercalation
Oxidants
X ray diffraction analysis
Infrared spectroscopy
Oxidation
Scanning electron microscopy
Acids
Composite materials
Liquids
Chemical analysis
hydroxide ion
iodosobenzene

Keywords

  • Catalytic properties
  • Fe(III)-amino acid complexes in CaAl-LDH
  • Oxidation reactions
  • Structural characterisation
  • Ullman-type etherification

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

Cite this

Syntheses, characterization and catalytic activities of CaAl-layered double hydroxide intercalated Fe(III)-amino acid complexes. / Varga, Gábor; Timár, Zita; Muráth, Szabolcs; Kónya, Z.; Kukovecz, Ákos; Carlson, Stefan; Sipos, P.; Pálinkó, I.

In: Catalysis Today, 26.08.2016.

Research output: Contribution to journalArticle

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AU - Kónya, Z.

AU - Kukovecz, Ákos

AU - Carlson, Stefan

AU - Sipos, P.

AU - Pálinkó, I.

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