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Investigation of the graphite-H2SO4-gaseous oxidizer (Cl-2, O-3, SO3) systemстатья
Информация о цитировании статьи получена из
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Web of Science
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
- Авторы: Avdeev V.V., Martynov I.U., Nikolskaya I.V., Monyakina L.A., Sorokina N.E.
- Журнал: Journal of Physics and Chemistry of Solids
- Том: 57
- Номер: 6-8
- Год издания: 1996
- Издательство: Pergamon Press Ltd.
- Местоположение издательства: United Kingdom
- Первая страница: 837
- Последняя страница: 840
- DOI: 10.1016/0022-3697(96)00359-9
- Аннотация: The intercalation of H2SO4 into graphite during chemical oxidiation by gaseous oxidizers (Cl-2, O-3, SO3) was investigated by X-ray and potentiometric methods. It is shown that stage 2 (oxidizer, Cl-2) and stage 1 (oxidizer, O-3) are formed in 94% H2SO4. It was established that the rate of the stage 2 GHS formation depends on the Cl-2 ultraviolet radiation, high pressure Cl-2 (P = 40-70 atm) and temperature. As expected the rate of the stage 1 GHS formation (oxidizer, O-3) was increased with content of O-3 in a O-3-O-2 gaseous mixture. The graphite-oleum system was investigated in a wide range of oleum concentrations (5-57% of free SO3) by potentiometric and calorimetric methods. It was established that the potentials of GIC formation with oleum are different from potentials of GHS formation when salt-like, Cl-2 or O-3 are used as oxidizers. In addition, the heat how curves have a monotonous behaviour. These factors were explained by the co-intercalation of SO3 with anions of sulphuric acid into graphite.
- Добавил в систему: Сорокина Наталья Евгеньевна