Review of the synthesis of layered double hydroxides: a thermodynamic approach
AUTOR(ES)
Bravo-Suárez, Juan J., Páez-Mozo, Edgar A., Oyama, S. Ted
FONTE
Química Nova
DATA DE PUBLICAÇÃO
2004-08
RESUMO
The synthesis of layered double hydroxides (LDHs) by hydrothermal-LDH reconstruction and coprecipitation methods is reviewed using a thermodynamic approach. A mixture model was used for the estimation of the thermodynamics of formation of LDHs. The synthesis and solubility of LDHs are discussed in terms of standard molar Gibbs free energy change of reaction. Data for numerous divalent and trivalent metals as well as for some monovalent and tetravalent metals that may be part of the LDH structure have been compiled. Good agreement is found between theoretical and experimental data. Diagrams and tables for the prediction of possible new LDH materials are provided.
Documentos Relacionados
- Models for the estimation of thermodynamic properties of layered double hydroxides: application to the study of their anion exchange characteristics
- Synthesis, Characterization and Exchange Reactions of Layered Double Hydroxides of Copper and Aluminum, Intercalated with Sulfate
- Recent advances in layered double hydroxides applied to photoprotection
- Comparative study of the coprecipitation methods for the preparation of Layered Double Hydroxides
- Intercalation of Apocarotenoids from Annatto (Bixa orellana L.) into Layered Double Hydroxides
