The nature of active centers during sorption of cyanide complexes of noble metals on carbon sorbents
| Autor: | Yu. S. Syrykh, V. I. Dudarev, O. I. Randin, N. Yu. Moskaeva, T. Yu. Afonina |
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| Rok vydání: | 2008 |
| Předmět: |
Chemistry
Cyanide Inorganic chemistry Metals and Alloys chemistry.chemical_element Sorption complex mixtures Surfaces Coatings and Films law.invention Paramagnetism chemistry.chemical_compound Delocalized electron Unpaired electron Mechanics of Materials law Cannel coal Electron paramagnetic resonance Carbon |
| Zdroj: | Russian Journal of Non-Ferrous Metals. 49:237-240 |
| ISSN: | 1934-970X 1067-8212 |
| DOI: | 10.3103/s1067821208040044 |
| Popis: | Carbon sorbents obtained from cannel coal of the Leninsk-Kuznetskii coal field are investigated by EPR spectroscopy. It is established that the sorption capacity of activated carbons by silver increases as the concentration of paramagnetic centers increases, and both parameters are peaked at the activation temperature of ∼900°C. As the sorption surface, the polyconjugated aromatic system with a delocalized unpaired electron is suggested. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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