Evaluation of Ti Distribution in Zeolite Framework Based on the Catalytic Activity for Alkene Epoxidation

A method for estimating the location of Ti atoms in zeolite framework has been developed based on the difference in catalytic activity for epoxidation of 1-hexene and 2-methyl-2-pentene. We have found that the Ti distribution in the MWW framework can be controlled by its preparation method; Ti atoms...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Chemistry letters 2019-09, Vol.48 (9), p.1130-1133
Hauptverfasser: Ji, Xinyi, Wang, Yunan, Fujii, Tsubasa, Otomo, Ryoichi, Kondo, Junko N., Yokoi, Toshiyuki
Format: Artikel
Sprache:eng
Schlagworte:
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:A method for estimating the location of Ti atoms in zeolite framework has been developed based on the difference in catalytic activity for epoxidation of 1-hexene and 2-methyl-2-pentene. We have found that the Ti distribution in the MWW framework can be controlled by its preparation method; Ti atoms introduced into the framework by the post-synthesized method were selectively located at narrow space, i.e., 10-membered ring (10MR) channels and the proportion of Ti atoms located in large space, i.e., supercages and 12MR side pockets on the crystal exterior was low.
ISSN:0366-7022
1348-0715
DOI:10.1246/cl.190387