THERMAL-STABILITY OF SOL-GEL HYDROTALCITES

Authors
RAMOS E LOPEZ T BOSCH P ASOMOZA M GOMEZ R
Citation
E. Ramos et al., THERMAL-STABILITY OF SOL-GEL HYDROTALCITES, JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY, 8(1-3), 1997, pp. 437-442
Citations number
9
Categorie Soggetti
Material Science
Journal title
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY → ACNP
ISSN journal
09280707
Volume
8
Issue
1-3
Year of publication
1997
Pages
437 - 442
Database
ISI
SICI code
0928-0707(1997)8:1-3<437:TOSH>2.0.ZU;2-6
Abstract
Sol-Gel Hydrotalcites were synthesized using magnesium ethoxide and va riable 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 d epends on the aluminum precursor used. The crystallinity was found in the order aluminum acetylcetonate > aluminum chloride > aluminum nitra te > aluminum sulfate. The precursor determines the sintering behavior as well.