ORTHOPHOSPHORIC ACID INTERACTIONS WITH ULTRASTABLE ZEOLITE-Y - INFRARED AND NMR-STUDIES

被引：42
|
作者：
CORMA, A
FORNES, V
KOLODZIEJSKI, W
MARTINEZTRIGUERO, LJ
机构：
[1] Institute de Tecnologia Química, U.P.V.-C.S.I.C., Universidad Politécnica de Valencia, Valencia 46071, Camino Vera S/N
来源：
JOURNAL OF CATALYSIS | 1994年 / 145卷 / 01期
关键词：
D O I：
10.1006/jcat.1994.1004
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Interaction of H3PO4 with extraframework aluminum of ultra-stable zeolite (USY) leads to the formation of different types of aluminum phosphates, while there is no indication of the formation of SAPO zeotype structures. The total acidity of USY slightly decreases upon the H3PO4 treatment, while the maximum in the distribution of acid strength is shifted to milder acidities. Dealumination of the zeolite and creation of POH sites associated with AlPO4 are responsible for the modifications observed. © 1994 Academic Press, Inc.
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收藏
页码：27 / 36
页数：10
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