Infrared study of some synthetic saponites:: Effect of NH4/Al and H2O/(Si+Al) ratios during the crystallization

被引：11
作者：
Kloprogge, JT [1 ]
Hickey, L [1 ]
Frost, RL [1 ]
机构：
[1] Queensland Univ Technol, Ctr Instrumental & Dev Chem, Brisbane, Qld 4001, Australia
来源：
JOURNAL OF MATERIALS SCIENCE LETTERS | 1999年 / 18卷 / 17期
关键词：
D O I：
10.1023/A:1006615206037
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Ammonium-saponite samples of (NH4)0.6Mg3Si3.4Cu0.6O10(OH)2 compositions were synthesized at 280°C during 74 h at autogenous water pressure. X-ray diffraction of the resulting saponites showed trace amounts of artefact corundum and amorphous material were present. Cation Exchange Capacity (CEC) determination, chemical analyses and 2791 magic-angle solid-state nuclear magnetic resonance spectroscopy (MAS-NMR) showed that the interlayer contained only limited amounts of ammonium and mainly Al3+ as the interlayer cation.
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页码：1401 / 1403
页数：3
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