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| Type: | Artigo de periódico |
| Title: | The ion-exchange capacity of Ti and Zr lamellar hydrogenphosphates - TG measurements |
| Author: | de Farias, RF Nunes, LM Airoldi, C |
| Abstract: | Thermogravimetric data were used to calculate the number of acidic Bronsted sites in lamellar alpha-titanium (alpha-TiP), gamma-titanium (gamma-TiP), alpha-zirconium (alpha-ZrP) and gamma-zirconium (gamma-ZrP) hydrogenphosphates. The numbers of acidic sites calculated for these lamellar compounds were 7.81, 5.67, 6.33 and 5.56 for alpha-TiP, gamma-TiP, alpha-ZrP and gamma-ZrP, respectively. These values are in good agreement with those found through potentiometric titration. The data obtained prove that thermogravimetric measurements can be used as a reliable analytical tool to follow the ion-exchange capacity of this kind of crystalline lamellar compounds. |
| Subject: | ion exchange lamellar compounds thermogravimetry titanium phosphate zirconium phosphate |
| Country: | Holanda |
| Editor: | Kluwer Academic Publ |
| Citation: | Journal Of Thermal Analysis And Calorimetry. Kluwer Academic Publ, v. 60, n. 2, n. 517, n. 521, 2000. |
| Rights: | fechado |
| Identifier DOI: | 10.1023/A:1010186719282 |
| Date Issue: | 2000 |
| Appears in Collections: | Unicamp - Artigos e Outros Documentos |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| WOS000087069600019.pdf | 79.93 kB | Adobe PDF | View/Open |
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