Thermal stability of sol-gel hydrotalcites

被引：1
|
作者：
Ramos, E [1 ]
Lopez, T [1 ]
Bosch, P [1 ]
Asomoza, M [1 ]
Gomez, R [1 ]
机构：
[1] UNIV AUTONOMA METROPOLITANA IZTAPALAPA,DEPT CHEM,MEXICO CITY 09340,DF,MEXICO
来源：
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY | 1997年 / 8卷 / 1-3期
关键词：
sol-gel hydrotalcites; X-ray diffraction; aluminum precursors; hydrotalcites Mg/Al ratio; mixed metal hydroxides;
D O I：
10.1007/BF02436879
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Sol-Gel Hydrotalcites were synthesized using magnesium ethoxide and variable aluminum sources: aluminum acetilacetonate, aluminum chloride, aluminum nitrate and aluminum sulfate; in all cases, the gelation was done at pH 10. X-ray diffraction studies show that the crystallinity depends on the aluminum precursor used. The crystallinity was found in the order aluminum acetylcetonate > aluminum chloride > aluminum nitrate > aluminum sulfate. The precursor determines the sintering behavior as well.
引用
收藏
页码：437 / 442
页数：6
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