1. Mechanochemical synthesis and intercalation of Ca(II)Fe(III)-layered double hydroxides
- Author
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Zoltán Kónya, Márton Szabados, Pál Sipos, Stefan Carlson, Zita Csendes, Ákos Kukovecz, Gábor Varga, Zs. Ferencz, and István Pálinkó
- Subjects
Thermogravimetric analysis ,Nanocomposite ,Chemistry ,Scanning electron microscope ,01.04. Kémiai tudományok ,Inorganic chemistry ,Intercalation (chemistry) ,Layered double hydroxides ,02 engineering and technology ,engineering.material ,010402 general chemistry ,021001 nanoscience & nanotechnology ,Condensed Matter Physics ,01 natural sciences ,0104 chemical sciences ,Electronic, Optical and Magnetic Materials ,Grinding ,Inorganic Chemistry ,Thermogravimetry ,Materials Chemistry ,Ceramics and Composites ,engineering ,Physical and Theoretical Chemistry ,Absorption (chemistry) ,0210 nano-technology - Abstract
A mechanochemical method (grinding the components without added water – dry grinding, followed by further grinding in the presence of minute amount of water or NaOH solution – wet grinding) was used in this work for the preparation and intercalation of CaFe-layered double hydroxides (LDHs). Both the pristine LDHs and the amino acid anion (cystinate and tyrosinate) intercalated varieties were prepared by the two-step grinding procedure in a mixer mill. By systematically changing the conditions of the preparation method, a set of parameters could be determined, which led to the formation of close to phase-pure LDH. The optimisation procedure was also applied for the intercalation processes of the amino acid anions. The resulting materials were structurally characterised by a range of methods (X-ray diffractometry, scanning electron microscopy, energy dispersive analysis, thermogravimetry, X-ray absorption and infra-red spectroscopies). It was proven that this simple mechanochemical procedure was able to produce complex organic–inorganic nanocomposites: LDHs intercalated with amino acid anions.
- Published
- 2016
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