Aluminum Complexes as Models for Broensted Acid Sites in Zeolites: Structure and Energetics of [Al(OH) 4 ] - , [Al(H 2 O) 6 ] 3+ , and Intermediate Monomeric Species [Al(OH) x (H 2 O) n - x · m H 2 O] 3- x Obtained by Hydrolysis

Insights on the Structural Chemistry of

Insights on the Structural Chemistry of Hydrocalumite and Hydrotalcite-like Materials: Investigation of the Series Ca2M3+(OH)6Cl·2H2O (M3+: Al3+, Ga3+, Fe3+, and Sc3+) by X-Ray Powder Diffraction

✍ Isabelle Rousselot; Christine Taviot-Guého; Fabrice Leroux; Philippe Léone; Pier 📂 Article 📅 2002 🏛 Elsevier Science 🌐 English ⚖ 342 KB

Hydrotalcite and hydrocalumite are two close minerals belonging to the layered double hydroxide family. Both structures are based on positive brucite-like layers alternating with layers containing anions and water molecules. Most of synthetic ðLDHsÞ are hydrotalcite-like materials. On the other hand