Characterization of cationic pillared layer clays

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Na-montmorillonite and its Al-, Ti-, Fe-, Cr-, Zr- and Sn-pillared derivatives (pillared layer clays) were prepared and characterized by instrumental methods and a chemical reaction. Structural characterization involved X-ray fluorescence (XRF) analysis, X-ray diffractometry (XRD), 29Si and 27Al MAS NMR spectroscopies, thermogravimetric (TG) and BET measurements. By the distinctly characteristic shapes of the d001 vs. temperature curves two groups could be distinguished, (i) Al-PILC, Ti-PILC, Cr-PILC, Zr-PILC and (ii) Fe-PILC, Sn-PILC, Na-montmorillonite. On montmorillonite isomerization of cyclopropane only occurred while oligomerization followed isomerization over Al-PILC. This latter reaction was attributed to Lewis and (the considerably smaller number of) Brönsted acid sites whose number, strength and accessibility increased due to pillaring.

Original languageEnglish
Pages (from-to)317-323
Number of pages7
JournalReaction Kinetics and Catalysis Letters
Volume64
Issue number2
Publication statusPublished - 1998

Fingerprint

Bentonite
montmorillonite
Clay minerals
clays
Clay
Isomerization
isomerization
Oligomerization
cyclopropane
X ray diffraction analysis
Nuclear magnetic resonance spectroscopy
Chemical reactions
chemical reactions
x rays
Fluorescence
Derivatives
X rays
fluorescence
nuclear magnetic resonance
acids

Keywords

  • Pillared layer clays
  • Surface acidity
  • Thermal characteristics

ASJC Scopus subject areas

  • Catalysis
  • Physical and Theoretical Chemistry

Cite this

Characterization of cationic pillared layer clays. / Pálinkó, I.; Kiricsi, I.; Hannus, I.

In: Reaction Kinetics and Catalysis Letters, Vol. 64, No. 2, 1998, p. 317-323.

Research output: Contribution to journalArticle

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