Study of catalysts comprising zirconium sulfate supported on a mesoporous molecular sieve HMS for esterification of fatty acids under solvent-free condition

Joon Ching Juan, Jingchang Zhang, Mohd. Ambar Yarmo

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

New solid acid catalysts consisting of zirconium sulfate (ZS) supported on a pure hexagonal mesoporous material (HMS) have been prepared and characterized. ZS is intact on the HMS surface and form finely dispersed species. No ZS crystal phase was developed even at ZS loadings as high as 40 wt%. The interaction of ZS with the HMS material enhances the acidity and the catalytic activity of this reaction. The effects of ZS loading on structure, acidity and catalytic activity were closely monitored. The HMS-supported ZS catalyst exhibits higher catalytic activity than bulk ZS and various solid acid catalysts in liquid-phase esterification of oleic acid with n-butanol under solvent-free conditions. It is assumed that the reaction occurred mainly inside the mesopores of HMS. The reaction was found to obey Eley-Rideal (ER) mechanisms. The HMS-supported ZS is a promising solid acid catalyst for acid-type reactions, which involve large organic molecules such as fatty acids.

Original languageEnglish
Pages (from-to)133-141
Number of pages9
JournalApplied Catalysis A: General
Volume347
Issue number2
DOIs
Publication statusPublished - 15 Sep 2008

Fingerprint

Mesoporous materials
Molecular sieves
Esterification
Fatty acids
Zirconium
Sulfates
Fatty Acids
Catalysts
Catalyst activity
Acids
Acidity
1-Butanol
Oleic acid
Oleic Acid
Butenes
Crystals
Molecules

Keywords

  • Esterification
  • Hexagonal mesoporous silica
  • Oleic acid
  • Zirconium sulfate

ASJC Scopus subject areas

  • Catalysis
  • Process Chemistry and Technology

Cite this

Study of catalysts comprising zirconium sulfate supported on a mesoporous molecular sieve HMS for esterification of fatty acids under solvent-free condition. / Juan, Joon Ching; Zhang, Jingchang; Yarmo, Mohd. Ambar.

In: Applied Catalysis A: General, Vol. 347, No. 2, 15.09.2008, p. 133-141.

Research output: Contribution to journalArticle

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AB - New solid acid catalysts consisting of zirconium sulfate (ZS) supported on a pure hexagonal mesoporous material (HMS) have been prepared and characterized. ZS is intact on the HMS surface and form finely dispersed species. No ZS crystal phase was developed even at ZS loadings as high as 40 wt%. The interaction of ZS with the HMS material enhances the acidity and the catalytic activity of this reaction. The effects of ZS loading on structure, acidity and catalytic activity were closely monitored. The HMS-supported ZS catalyst exhibits higher catalytic activity than bulk ZS and various solid acid catalysts in liquid-phase esterification of oleic acid with n-butanol under solvent-free conditions. It is assumed that the reaction occurred mainly inside the mesopores of HMS. The reaction was found to obey Eley-Rideal (ER) mechanisms. The HMS-supported ZS is a promising solid acid catalyst for acid-type reactions, which involve large organic molecules such as fatty acids.

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