Optimal aluminum-assisted mesoporosity development in MFI zeolites by desilication

被引：482
作者：
Groen, JC
Jansen, JC
Moulijn, JA
Pérez-Ramírez, J
机构：
[1] Delft Univ Technol, DelftChemTech, NL-2628 BL Delft, Netherlands
[2] Yara Technol Ctr Porsgrunn, N-3908 Porsgrunn, Norway
来源：
JOURNAL OF PHYSICAL CHEMISTRY B | 2004年 / 108卷 / 35期
关键词：
D O I：
10.1021/jp047194f
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：
Tetrahedrally coordinated aluminum in MFI zeolite frameworks controls the mechanism of intracrystalline mesopore formation by desilication in alkaline medium. The optimal molar Si/Al ratio in the range of 25-50 enables a controlled mesoporosity development with preserved crystalline and acidic properties, potentially leading to a more efficient zeolite utilization by improved diffusion characteristics.
引用
收藏
页码：13062 / 13065
页数：4
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