Accessibility of the Fe-species in Fe/ZSM-5 prepared via FeCl3 sublimation

被引：9

作者：

Bitter, JH ^{[1
]}

Battiston, AA ^{[1
]}

van Donk, S ^{[1
]}

de Jong, KP ^{[1
]}

Koningsberger, DC ^{[1
]}

机构：

[1] Univ Utrecht, Debye Inst, Dept Inorgan Chem & Catalysis, NL-3508 TB Utrecht, Netherlands

来源：

MICROPOROUS AND MESOPOROUS MATERIALS | 2003年 / 64卷 / 1-3期

关键词：

Fe/ZSM-5; TEOM; accessibility; pore blocking; DeNox;

D O I：

10.1016/S1387-1811(03)00465-7

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Microscopic characterization by TEM, EELS and EXAFS, in combination with adsorption studies on a macroscopic scale using a tapered element oscillating microbalance, revealed that the accessibility of the micropores in over-exchanged Fe/ZSM-5 prepared via FeCl3 sublimation is retarded by pore blocking caused by iron species in the zeolite pores. As a result, the potentially active sites which are located deeply inside the zeolite do not contribute significantly to the activity of the catalyst towards the selective catalytic reduction of NO by isobutane. (C) 2003 Elsevier Inc. All rights reserved.

引用

页码：175 / 184

页数：10

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