Characterization and catalytic activity of Ni-Al and Zn-Cr mixed oxides obtained from layered double hydroxides

Attila Béres, I. Pálinkó, I. Kiricsi, Fujio Mizukami

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

In this work, the preparation of Ni-Al and Zn-Cr layered double hydroxides (LDHs) and their transformations upon calcination are described. The LDHs were prepared from their nitrate salts by pH controlled precipitation. They were characterized before and after calcination by scanning electron microscopy (SEM), X-ray diffractometry (XRD) and BET surface area measurements. The acid-base properties of the dehydrated materials were also investigated by temperature programmed CO2 desorption and the double-bond isomerization reaction of 1-butene. It was found that upon calcination mixed oxides with large surface areas were formed, which possessed mainly acidic sites of moderate strength.

Original languageEnglish
Pages (from-to)259-263
Number of pages5
JournalSolid State Ionics
Volume141-142
DOIs
Publication statusPublished - May 1 2001

Fingerprint

Hydroxides
mixed oxides
Calcination
roasting
Oxides
hydroxides
catalytic activity
Catalyst activity
butenes
Temperature programmed desorption
Isomerization
Butenes
Nitrates
X ray diffraction analysis
isomerization
nitrates
Salts
desorption
salts
preparation

Keywords

  • Acidic catalysts
  • Calcination
  • Characterization
  • Mixed oxides
  • Ni-Al and Zn-Cr layered double hydroxides

ASJC Scopus subject areas

  • Electrochemistry
  • Physical and Theoretical Chemistry
  • Energy Engineering and Power Technology
  • Materials Chemistry
  • Condensed Matter Physics

Cite this

Characterization and catalytic activity of Ni-Al and Zn-Cr mixed oxides obtained from layered double hydroxides. / Béres, Attila; Pálinkó, I.; Kiricsi, I.; Mizukami, Fujio.

In: Solid State Ionics, Vol. 141-142, 01.05.2001, p. 259-263.

Research output: Contribution to journalArticle

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