New catalytic characteristics of Cs-substituted heteropolyacids

Kwan Young Lee

New catalytic characteristics of Cs-substituted heteropolyacids

Department of Chemical and Biological Engineering

Research output: Contribution to conference › Paper › peer-review

Abstract

Since Cs_2.5H_0.5PW₁₂O₄₀ (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, Cs_nPMo11V (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 language	English
Pages	240-241
Number of pages	2
Publication status	Published - 2001
Event	Proceedings of the Fourth International Conference on Materials Engineering for Resources - Akita, Japan Duration: 2001 Oct 11 → 2001 Oct 13

Other

Other	Proceedings of the Fourth International Conference on Materials Engineering for Resources
Country/Territory	Japan
City	Akita
Period	01/10/11 → 01/10/13

Keywords

Acid catalyst
Base catalyst
Cs substitution
Heteropolyacids
MCM-41

ASJC Scopus subject areas

General Engineering

Cite this

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title = "New catalytic characteristics of Cs-substituted heteropolyacids",

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.",

keywords = "Acid catalyst, Base catalyst, Cs substitution, Heteropolyacids, MCM-41",

author = "Lee, {Kwan Young}",

year = "2001",

language = "English",

pages = "240--241",

note = "Proceedings of the Fourth International Conference on Materials Engineering for Resources ; Conference date: 11-10-2001 Through 13-10-2001",

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TY - CONF

T1 - New catalytic characteristics of Cs-substituted heteropolyacids

AU - Lee, Kwan Young

PY - 2001

Y1 - 2001

N2 - 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.

AB - 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.

KW - Acid catalyst

KW - Base catalyst

KW - Cs substitution

KW - Heteropolyacids

KW - MCM-41

UR - http://www.scopus.com/inward/record.url?scp=0035790462&partnerID=8YFLogxK

M3 - Paper

AN - SCOPUS:0035790462

SP - 240

EP - 241

T2 - Proceedings of the Fourth International Conference on Materials Engineering for Resources

Y2 - 11 October 2001 through 13 October 2001

ER -

New catalytic characteristics of Cs-substituted heteropolyacids

Abstract

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Keywords

ASJC Scopus subject areas

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