Intercalation of Anionic Oxalato Complexes into Layered Double Hydroxides

✍ Scribed by V. Prevot; C. Forano; J.P. Besse

• Publisher: Elsevier Science
• Year: 2000
• Tongue: English
• Weight: 354 KB
• Volume: 153
• Category: Article
• ISSN: 0022-4596
• DOI: 10.1006/jssc.2000.8769

✦ Synopsis

Intercalation compounds of layered double hydroxide (LDH), M II 1؊x M III x (OH) 2 A x/y ' nH 2 O (with M II ‫؍‬Zn, Cu and M III ‫؍‬Al, Cr, Ga), with oxalato complexes of aluminium, gallium, chromium, copper, and beryllium, were obtained via anion-exchange processes. Powder X-ray di4raction indicated that the intercalation reactions were successful. The basal spacings measured after intercalation are near 0.98 ؎ 0.02 nm, whatever the host matrix composition. Studies by FTIR spectroscopy con5rmed the intercalation of the oxalato complex, too. In order to study the thermal decomposition of the exchanged products, TGA-coupled mass spectrometry was performed.