A thermodynamically stable layered double hydroxide heterostructure
| Autor: | Gareth R. Williams, Anusha Ragavan, Dermot O'Hare |
|---|---|
| Rok vydání: | 2009 |
| Předmět: |
Ion exchange
biology Chemistry & allied sciences Intercalation (chemistry) Inorganic chemistry Heterojunction General Chemistry Reaction intermediate Chloride chemistry.chemical_compound Crystallography chemistry Materials Chemistry medicine biology.protein Hydroxide Powder diffraction medicine.drug Organic anion |
| Zdroj: | Journal of Materials Chemistry. 19:4211 |
| ISSN: | 1364-5501 0959-9428 |
| DOI: | 10.1039/b822390d |
| Popis: | A novel heterostructure was synthesised via the intercalation of 4-nitrophenolate (4-NP) into [LiAl2(OH)6]Cl·xH 2O ([Li-Al-Cl]). Its interlayer spaces are alternatively occupied by 4-NP and chloride ions. The intercalate is structurally analogous to staging intermediates reported previously. However, data obtained from time-resolved in situ energy-dispersive X-ray powder diffraction clearly differentiate it from a reaction intermediate. The [Li-Al-Cl-4-NP] heterostructure is formed as a thermodynamically stable product when [Li-Al-Cl] is treated with a small excess of 4-NP over an extended period of time at elevated temperatures (above 70 °C). The heterostructural compound exhibits selective anion exchange when reacted with a range of organic and inorganic anions. © 2009 The Royal Society of Chemistry. |
| Databáze: | OpenAIRE |
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