Physicochemical characterization of porous materials: Spatially resolved accessibility of zeolite crystals

被引：43

作者：

van Donk, S

Bitter, JH

Verberckmoes, A

Versluijs-Helder, M

Broersma, A

de Jong, KP

机构：

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

[2] ExxonMobil Chem Europe Inc, European Technol Ctr, Machelen, Belgium

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2005年 / 44卷 / 09期

关键词：

diffusion; mesoporous materials; microporous materials; physisorption; zeolites;

D O I：

10.1002/anie.200460966

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Blocked pores: Hydrocarbon diffusion and coke profile measurements were used to study zeolite pore accessibility. For mordenite crystals the accessible length of the micropores (red bars in picture) is as low as 30% of the value expected from the crystal size. New analysis strategies are advocated for micro- and mesoporous materials, for which the performance in adsorption, separation, and catalysis is strongly affected by accessibility. © 2005 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.

引用

页码：1360 / 1363

页数：4

共 39 条

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