QUINOLINE AS A PROBE MOLECULE FOR DETERMINATION OF EXTERNAL BRONSTED AND LEWIS ACIDITY IN ZEOLITES

被引：41
|
作者：
CORMA, A [1 ]
FORNES, V [1 ]
REY, F [1 ]
机构：
[1] UNIV POLITECN VALENCIA,UPV CSIC,INST TECNOL QUIM,CAMINO VERA S-N,E-46071 VALENCIA,SPAIN
来源：
ZEOLITES | 1993年 / 13卷 / 01期
关键词：
EXTERNAL ACIDITY; INFRARED SPECTROSCOPY; PROBE MOLECULES; QUINOLINE;
D O I：
10.1016/0144-2449(93)90023-V
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：
Bronsted and Lewis acid sites in Y zeolites have been determined by using a large base molecule, such as quinoline, and monitoring the adsorption/desorption experiments by infrared spectroscopy. It has been pointed out that quinoline does not penetrate deep inside the channels of the Y zeolite, and, consequently, this molecule can be used mainly to determine external acidity of zeolites and related materials with pore diameter lower than 0.7 nm.
引用
收藏
页码：56 / 59
页数：4
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