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Synthesis of high-quality, well-characterized CaAlFe-layered triple hydroxide with the combination of dry-milling and ultrasonic irradiation in aqueous solution at elevated temperature

Författare

  • Márton Szabados
  • Krisztián Pásztor
  • Zita Csendes
  • Szabolcs Muráth
  • Zoltán Kónya
  • Ákos Kukovecz
  • Stefan Carlson
  • Pál Sipos
  • István Pálinkó

Summary, in English

The combination of mechanochemical and ultrasonic treatment was applied to synthesize CaAlFe-layered triple hydroxides with carbonate or chloride anions in the interlamellar space. The optimal parameters of the preparation were explored by altering the initial ratio of the metal ions and the temperature of ultrasonic irradiation. The resulting triple hydroxides were characterized by X-ray diffractometry, infrared and X-ray absorption spectroscopies, thermogravimetric analysis and scanning electron microscopy. The products were close-to-phase-pure CaAlFe-layered triple hydroxides. Elevation of the temperature transformed the CaAlFe-Cl--layered triple hydroxide to rare oxyhalides (Ca2FeO3Cl and Ca12Al14O32Cl2).

Publiceringsår

2016-09-01

Språk

Engelska

Sidor

173-180

Publikation/Tidskrift/Serie

Ultrasonics Sonochemistry

Volym

32

Dokumenttyp

Artikel i tidskrift

Förlag

Elsevier

Nyckelord

  • CaAlFe-layered triple hydroxides
  • IR
  • NEXAFS-EXAFS
  • Oxyhalides
  • Thermogravimetric analysis

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 1350-4177