| Revista: | Quimica nova |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000198169 |
| ISSN: | 0100-4042 |
| Autores: | Nunes, Liliane M1 Airoldi, Claudio2 |
| Instituciones: | 1Universidade Federal da Paraiba, Departamento de Quimica, Joao Pessoa, Paraiba. Brasil 2Universidade Estadual de Campinas, Instituto de Quimica, Campinas, Sao Paulo. Brasil |
| Año: | 2001 |
| Periodo: | Nov-Dic |
| Volumen: | 24 |
| Número: | 6 |
| Paginación: | 799-807 |
| País: | Brasil |
| Idioma: | Portugués |
| Tipo de documento: | Revisión bibliográfica |
| Enfoque: | Teórico, descriptivo |
| Resumen en inglés | The development associated with the research field involving crystalline inorganic lamellar titanium hydrogenphosphate, Ti(HPO4).H2O, synthesized as alpha or gamma forms, is directly linked to the huge number of reactions, that occur inside the free interlamellar space. Two distinguishable well-characterized features such as ion-exchange and intercalation reactions are explored here. From the interactive point of view, the acidic OH centres distributed on the lamella can interact with cations or with basic polar molecules to exchange or to intercalate them. These chemical reactions are normally followed by an expansion of the interlamellar space, proportional to the amount intercalated, reflecting in ion radii or organic molecule size lengths used in ion-exchange or insertion processes, respectively. The effectiveness of the exchange increased when the original matrix has the proton of OH group previously ion-exchanged by an alkaline or an alkylammonium cations. Monoalkyl-, dialkyl- and heterocyclic amines are focused in this revision as clear and elucidative examples of acid-base interactive processes, that come out inside of the well-formed infinite sequence of inorganic lamellar structure |
| Disciplinas: | Química |
| Palabras clave: | Química inorgánica, Titanio, Intercambio iónico, Hidrogenofosfato de titanio, Síntesis, Estructura laminar, Intercalacion |
| Keyword: | Chemistry, Inorganic chemistry, Titanium, Ion exchange, Titanium hydrogenphosphate, Synthesis, Lamellar structure, Intercalation |
| Texto completo: | Texto completo (Ver HTML) |
