Побудова моделей, що описують протолітичні рівноваги на поверхні аміноксерогелю
On the base of probing the aminoxerogel surface by H+ ions the models have been constructed for interpretation of peculiarities of reactions occurring on the surface. The model of energetic heterogeneity postulates the presence of stoichiometrically identical sorption centers having different affini...
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| Date: | 2012 |
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| Main Authors: | , , , , , |
| Format: | Article |
| Language: | Russian |
| Published: |
Chuiko Institute of Surface Chemistry National Academy of Sciences of Ukraine
2012
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| Online Access: | https://www.cpts.com.ua/index.php/cpts/article/view/144 |
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| Journal Title: | Chemistry, Physics and Technology of Surface |
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Chemistry, Physics and Technology of Surface| Summary: | On the base of probing the aminoxerogel surface by H+ ions the models have been constructed for interpretation of peculiarities of reactions occurring on the surface. The model of energetic heterogeneity postulates the presence of stoichiometrically identical sorption centers having different affinity to Н+ ions. The model of polydentate binding assumes that affinity of sorption centers to the probe is dependent on the degree of occupation of sorption centers. The model of chemical reactions describes the non-ideal nature of binding Н+ ions in terms of reactions supplementing the protonation of basic sorption centers. All tested models describe the experimental data properly, the model of polydentate binding provides the most meaningful information about features of protonation equilibria. |
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