SOLID-STATE NMR-STUDY OF ORDERED MESOPOROUS ALUMINOSILICATE MCM-41 SYNTHESIZED ON A LIQUID-CRYSTAL TEMPLATE

被引：129

作者：

KOLODZIEJSKI, W ^{[1
]}

CORMA, A ^{[1
]}

NAVARRO, MT ^{[1
]}

PEREZPARIENTE, J ^{[1
]}

机构：

[1] UNIV POLITECN VALENCIA,CSIC,INST TECHNOL QUIM,CAMINO VERA S-N,E-46071 VALENCIA,SPAIN

来源：

SOLID STATE NUCLEAR MAGNETIC RESONANCE | 1993年 / 2卷 / 05期

关键词：

SOLID-STATE NMR; MOLECULAR SIEVE; ALUMINOSILICATE; MESOPORES; LIQUID CRYSTAL;

D O I：

10.1016/0926-2040(93)90005-8

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：

A novel mesoporous aluminosilicate MCM-41, synthesized in a liquid-crystal system, was characterized by magic angle spinning NMR. Conventional Bloch decay and cross-polarization spectra were compared. The Al-27 spectra showed that the calcined material was highly siliceous, while Si-29 NMR proved that it was rich in single and geminal silanol groups. Two kinds of the silanol groups were detected: exchanging and non-exchanging protons with water on the timescale of the H-1 experiment. The C-13 spectra of the uncalcined material were consistent with the concept of the micellar arrangement of the cetyltrimethylammonium template inside MCM-41.

引用

页码：253 / 259

页数：7

共 12 条

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