Bulletin of the Korean Chemical Society

Korean Chemical Society (대한화학회)
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Influence of Ionic Liquid as a Template on Preparation of Porous η-Al2O3 to DME Synthesis from Methanol

  • Yoo, Kye-Sang (Department of Chemical Engineering, Seoul National University of Technology) ;
  • Lee, Se-Hee (Department of Chemical Engineering, Seoul National University of Technology)
  • Received : 2010.02.23
  • Accepted : 2010.04.23
  • Published : 2010.06.20
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Abstract

Porous ${\eta}-Al_2O_3$ was synthesized by modified sol-gel method using ionic liquid as a templating material. The addition of ionic liquid assisted to increase the surface area of alumina. However, the acidity of aluminas prepared with ionic liquids was hardly affected regardless the change of its structural properties. Among the ionic liquids used in this study, 1-butyl-3-methylimidazolium hexafluorophosphate ([Bmim][$PF_6$]) was the most effective ionic liquid to produce porous ${\eta}-Al_2O_3$ particles. The catalytic performance of these aluminas has been investigated in dehydration of methanol to produce dimethyl ether. The alumina prepared with [Bmim][$PF_6$] outperformed the other aluminas except ${\eta}-Al_2O_3$ without modification in this reaction.

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References

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