Amino acid-pillared layered double hydroxide and montmorillonite. Thermal characteristics

Á Fudala, I. Pálinkó, B. Hrivnák, I. Kiricsi

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

Zn-Al hydrotalcite (HT) and Na-montmorillonite (Na-mont) were pillared by the deprotonated and the protonated forms of L-tyrosine, respectively. Pillaring was successful as the increased basal spacings due to intercalation attest. L-Tyr-HT proved to be thermally less stabile than HT, while that of L-Tyr-mont did not change compared to Na-mont. DTG curves showed more mass loss steps for the hosts than for the intercalated compounds. The extra steps belonged to the decomposition of the amino acid derivatives. FT-IR spectra of the samples pretreated in vacuum in the 293-773 K temperature range also showed that intercalation was successful and L-Tyr-HT is more temperature sensitive than L-Tyr-mont.

Original languageEnglish
Pages (from-to)317-322
Number of pages6
JournalJournal of Thermal Analysis and Calorimetry
Volume56
Issue number1
Publication statusPublished - 1999

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hydrotalcite
Bentonite
montmorillonite
Intercalation
Clay minerals
intercalation
hydroxides
amino acids
Amino acids
Amino Acids
tyrosine
spacing
Vacuum
Derivatives
Decomposition
decomposition
Temperature
vacuum
temperature
curves

ASJC Scopus subject areas

  • Chemical Engineering(all)

Cite this

Amino acid-pillared layered double hydroxide and montmorillonite. Thermal characteristics. / Fudala, Á; Pálinkó, I.; Hrivnák, B.; Kiricsi, I.

In: Journal of Thermal Analysis and Calorimetry, Vol. 56, No. 1, 1999, p. 317-322.

Research output: Contribution to journalArticle

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