Mechanochemical synthesis and intercalation of Ca(II)Fe(III)-layered double hydroxides

Summary, in English

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.

• Författare: Zs Ferencz; M. Szabados; G. Varga; Z. Csendes; Kukovecz; Z. Kónya; S. Carlson; P. Sipos; I. Pálinkó
• Avdelning/ar: MAX IV-laboratoriet
• Publiceringsår: 2016-01-01
• Språk: Engelska
• Sidor: 236-243
• Publikation/Tidskrift/Serie: Journal of Solid State Chemistry
• Volym: 233
• Länkar: http://dx.doi.org/10.1016/j.jssc.2015.10.038
• Dokumenttyp: Artikel i tidskrift
• Förlag: Elsevier
• Nyckelord: Ca(II)Fe(III)-LDHs; Intercalation; Milling; Nanocomposites with the anions of cystine and tyrosine
• Status: Published
• ISBN/ISSN/Övrigt: ISSN: 0022-4596