New catalytic characteristics of Cs-substituted heteropolyacids

Research output: Contribution to conferencePaper

Abstract

Since Cs2.5H0.5PW12O40 (which will be abbreviated as Cs2.5PW12) showed extremely high activities for various acid catalytic reactions, catalytic characteristics of Cs-substituted heteropolyacids have been of great interest. The surface area and surface acidity are controlled by the amount of Cs substitution. The size of the micropores is not only nearly uniform but also can be controlled at the sub - nm level, which leads to shape selective catalysis. Furthermore, CsnPMo11V (n≥3) has recently been reported to show the characteristics of the base catalyst. Also, novel synthesis techniques have been developed to prepare a highly dispersed heteropoly catalysts, Cs-substituted tungstophosphoric acid/salts on mesoporous MCM-41 materials. In this talk, the details of the base catalytic properties and the novel grafting preparation technique will be presented and discussed.

Original languageEnglish
Pages240-241
Number of pages2
Publication statusPublished - 2001
EventProceedings of the Fourth International Conference on Materials Engineering for Resources - Akita, Japan
Duration: 2001 Oct 112001 Oct 13

Other

OtherProceedings of the Fourth International Conference on Materials Engineering for Resources
CountryJapan
CityAkita
Period01/10/1101/10/13

Keywords

  • Acid catalyst
  • Base catalyst
  • Cs substitution
  • Heteropolyacids
  • MCM-41

ASJC Scopus subject areas

  • Engineering(all)

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  • Cite this

    Lee, K. Y. (2001). New catalytic characteristics of Cs-substituted heteropolyacids. 240-241. Paper presented at Proceedings of the Fourth International Conference on Materials Engineering for Resources, Akita, Japan.