Grafting sulfated zirconia on mesoporous silica

Yong Wang, Kwan Young Lee, Saemin Choi, Jun Liu, Li Qiong Wang, Charles H F Peden

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

Recently, sulfated zirconia has received considerable attention as a potential solid acid catalyst to replace problematic homogeneous acid catalysts. In this paper, the preparation and properties of acid catalysts obtained by grafting ziconia with atomic precision on MCM-41 mesoporous silica were studied. TEM and potential titration characterizations revealed that ZrO 2/MCM-41 with monolayer coverage can be obtained using this grafting technique. Sulfated ZrO2/MCM-41 exhibits improved thermal stability than that of bulk sulfated zirconia, as evidenced by temperature programmed characterizations and XRD analysis. Temperature programmed reaction of isopropanol was used to evaluate the acidity of sulfated ZrO2/MCM-41. It was found that the acid strength of sulfated ZrO2/MCM-41 with monolayer coverage is weaker than bulk sulfated zirconia but stronger than SiO2-Al2O3, a common strong acid catalyst.

Original languageEnglish
Pages (from-to)540-544
Number of pages5
JournalGreen Chemistry
Volume9
Issue number6
DOIs
Publication statusPublished - 2007 Jun 13
Externally publishedYes

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Multicarrier modulation
Silicon Dioxide
Zirconia
silica
Silica
Acids
catalyst
acid
Catalysts
Monolayers
2-Propanol
Titration
Acidity
acidity
transmission electron microscopy
Thermodynamic stability
temperature
X-ray diffraction
MCM-41
zirconium oxide

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

Wang, Y., Lee, K. Y., Choi, S., Liu, J., Wang, L. Q., & Peden, C. H. F. (2007). Grafting sulfated zirconia on mesoporous silica. Green Chemistry, 9(6), 540-544. https://doi.org/10.1039/b614928f

Grafting sulfated zirconia on mesoporous silica. / Wang, Yong; Lee, Kwan Young; Choi, Saemin; Liu, Jun; Wang, Li Qiong; Peden, Charles H F.

In: Green Chemistry, Vol. 9, No. 6, 13.06.2007, p. 540-544.

Research output: Contribution to journalArticle

Wang, Y, Lee, KY, Choi, S, Liu, J, Wang, LQ & Peden, CHF 2007, 'Grafting sulfated zirconia on mesoporous silica', Green Chemistry, vol. 9, no. 6, pp. 540-544. https://doi.org/10.1039/b614928f
Wang Y, Lee KY, Choi S, Liu J, Wang LQ, Peden CHF. Grafting sulfated zirconia on mesoporous silica. Green Chemistry. 2007 Jun 13;9(6):540-544. https://doi.org/10.1039/b614928f
Wang, Yong ; Lee, Kwan Young ; Choi, Saemin ; Liu, Jun ; Wang, Li Qiong ; Peden, Charles H F. / Grafting sulfated zirconia on mesoporous silica. In: Green Chemistry. 2007 ; Vol. 9, No. 6. pp. 540-544.
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