Взаємодія 1-метилпіперазину з поверхнею нанокремнеземних матриць
The processes of adsorption and thermal transformations of the 1-methylpiperazine on the surfaces of the fumed silica, Al2O3/SiO2 and TiO2/SiO2 were investigated by means of infrared spectroscopy and temperature programmed desorption mass spectrometry. Experimentally established constants of adsorpt...
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| Datum: | 2016 |
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| Hauptverfasser: | , , , , |
| Format: | Artikel |
| Sprache: | Ukrainisch |
| Veröffentlicht: |
Chuiko Institute of Surface Chemistry National Academy of Sciences of Ukraine
2016
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| Online Zugang: | https://surfacezbir.com.ua/index.php/surface/article/view/610 |
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| Назва журналу: | Surface |
| Завантажити файл: |  |
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Surface| Zusammenfassung: | The processes of adsorption and thermal transformations of the 1-methylpiperazine on the surfaces of the fumed silica, Al2O3/SiO2 and TiO2/SiO2 were investigated by means of infrared spectroscopy and temperature programmed desorption mass spectrometry. Experimentally established constants of adsorption equilibrium and limiting adsorption values have shown that the capacity of oxides to adsorb of 1-methylpiperazine increases in the series: SiO2 < TiO2/SiO2 < Al2O3/SiO2. The analysis of the processes of desorption/decomposition of 1-methylpiperazine surface complexes showed that on the silica and alumina-silica surfaces exist one type of acid sites and on the titania-silica surface exist two types of acid sites. |
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| DOI: | 10.15407/Surface.2016.08.104 |