High activity, templated mesoporous SO4/ZrO2/HMS catalysts with controlled acid site density for α-pinene isomerisation

Muriel A. Ecormier, Adam F. Lee, Karen Wilson

Research output: Contribution to journalArticle

Abstract

Highly active mesoporous SO4/ZrO2/HMS (hexagonal mesoroporous silica) solid acid catalysts with tuneable sulphated zirconia (SZ) content have been prepared for the liquid phase isomerisation of α-pinene. The mesoporous HMS framework is preserved during the grafting process as evidenced by the X-ray diffraction (XRD) and porosimetry with all SO4/ZrO2/HMS materials possessing average pore-diameters ∼20 Å. XRD confirms the presence of a stabilized tetragonal phase of nanoparticulate ZrO2, with no evidence for zirconia phase separation or the formation of discrete crystallites, consistent with a uniform and highly dispersed SZ coating. The activity towards α-pinene isomerisation scales linearly with Zr loading, while the specific activities are an order of magnitude greater than attainable by conventional methodologies (∼1 versus 0.08 mol h−1 g Zr−1).
Original languageEnglish
Pages (from-to)301-310
Number of pages10
JournalMicroporous and Mesoporous Materials
Volume80
Issue number1-3
Early online date5 Feb 2005
DOIs
Publication statusPublished - May 2005

Fingerprint

Isomerization
zirconium oxides
Zirconia
isomerization
catalysts
acids
Catalysts
Acids
X ray diffraction
Crystallites
diffraction
Silicon Dioxide
Phase separation
crystallites
liquid phases
x rays
Silica
methodology
silicon dioxide
porosity

Keywords

  • green chemistry
  • solid acids
  • mesoporous materials
  • hexagonal mesoporous silica
  • sulphated zirconia
  • α-Pinene isomerisation
  • terpenes
  • SO4/ZrO2

Cite this

@article{bb1f888980fa4ba9adfbff9342dc2e9f,
title = "High activity, templated mesoporous SO4/ZrO2/HMS catalysts with controlled acid site density for α-pinene isomerisation",
abstract = "Highly active mesoporous SO4/ZrO2/HMS (hexagonal mesoroporous silica) solid acid catalysts with tuneable sulphated zirconia (SZ) content have been prepared for the liquid phase isomerisation of α-pinene. The mesoporous HMS framework is preserved during the grafting process as evidenced by the X-ray diffraction (XRD) and porosimetry with all SO4/ZrO2/HMS materials possessing average pore-diameters ∼20 {\AA}. XRD confirms the presence of a stabilized tetragonal phase of nanoparticulate ZrO2, with no evidence for zirconia phase separation or the formation of discrete crystallites, consistent with a uniform and highly dispersed SZ coating. The activity towards α-pinene isomerisation scales linearly with Zr loading, while the specific activities are an order of magnitude greater than attainable by conventional methodologies (∼1 versus 0.08 mol h−1 g Zr−1).",
keywords = "green chemistry, solid acids, mesoporous materials, hexagonal mesoporous silica, sulphated zirconia, α-Pinene isomerisation, terpenes, SO4/ZrO2",
author = "Ecormier, {Muriel A.} and Lee, {Adam F.} and Karen Wilson",
year = "2005",
month = "5",
doi = "10.1016/j.micromeso.2005.01.007",
language = "English",
volume = "80",
pages = "301--310",
journal = "Microporous and Mesoporous Materials",
issn = "1387-1811",
publisher = "Elsevier",
number = "1-3",

}

High activity, templated mesoporous SO4/ZrO2/HMS catalysts with controlled acid site density for α-pinene isomerisation. / Ecormier, Muriel A.; Lee, Adam F.; Wilson, Karen.

In: Microporous and Mesoporous Materials, Vol. 80, No. 1-3, 05.2005, p. 301-310.

Research output: Contribution to journalArticle

TY - JOUR

T1 - High activity, templated mesoporous SO4/ZrO2/HMS catalysts with controlled acid site density for α-pinene isomerisation

AU - Ecormier, Muriel A.

AU - Lee, Adam F.

AU - Wilson, Karen

PY - 2005/5

Y1 - 2005/5

N2 - Highly active mesoporous SO4/ZrO2/HMS (hexagonal mesoroporous silica) solid acid catalysts with tuneable sulphated zirconia (SZ) content have been prepared for the liquid phase isomerisation of α-pinene. The mesoporous HMS framework is preserved during the grafting process as evidenced by the X-ray diffraction (XRD) and porosimetry with all SO4/ZrO2/HMS materials possessing average pore-diameters ∼20 Å. XRD confirms the presence of a stabilized tetragonal phase of nanoparticulate ZrO2, with no evidence for zirconia phase separation or the formation of discrete crystallites, consistent with a uniform and highly dispersed SZ coating. The activity towards α-pinene isomerisation scales linearly with Zr loading, while the specific activities are an order of magnitude greater than attainable by conventional methodologies (∼1 versus 0.08 mol h−1 g Zr−1).

AB - Highly active mesoporous SO4/ZrO2/HMS (hexagonal mesoroporous silica) solid acid catalysts with tuneable sulphated zirconia (SZ) content have been prepared for the liquid phase isomerisation of α-pinene. The mesoporous HMS framework is preserved during the grafting process as evidenced by the X-ray diffraction (XRD) and porosimetry with all SO4/ZrO2/HMS materials possessing average pore-diameters ∼20 Å. XRD confirms the presence of a stabilized tetragonal phase of nanoparticulate ZrO2, with no evidence for zirconia phase separation or the formation of discrete crystallites, consistent with a uniform and highly dispersed SZ coating. The activity towards α-pinene isomerisation scales linearly with Zr loading, while the specific activities are an order of magnitude greater than attainable by conventional methodologies (∼1 versus 0.08 mol h−1 g Zr−1).

KW - green chemistry

KW - solid acids

KW - mesoporous materials

KW - hexagonal mesoporous silica

KW - sulphated zirconia

KW - α-Pinene isomerisation

KW - terpenes

KW - SO4/ZrO2

UR - http://www.scopus.com/inward/record.url?scp=18844422713&partnerID=8YFLogxK

U2 - 10.1016/j.micromeso.2005.01.007

DO - 10.1016/j.micromeso.2005.01.007

M3 - Article

AN - SCOPUS:18844422713

VL - 80

SP - 301

EP - 310

JO - Microporous and Mesoporous Materials

JF - Microporous and Mesoporous Materials

SN - 1387-1811

IS - 1-3

ER -