The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Several types of carbon materials (activated carbon, carbon black, multiwalled carbon nanotubes) differing in porosity and surface chemistry were used to prepare powdered electrodes. Activated carbon (Norit R3-ex) was demineralized and modified by oxidation with conc. HNO 3 , heat treatment in NH 3 at 900°C or heat treatment in argon at 1800°C. Carbon black (Vulcan XC72) was flushed...
Granulated commercial activated carbon obtained from hardcoal was separated for fractions, by elutriation, in an air stream of constant flow-rate. Three samples of different fall down distances from the outlet tube were demineralized. Benzene adsorption isotherms were determined at 293 K and SAXS measurements were performed for each one. The Dubinin-Izotova and Dubinin-Stoeckli equations were used...
Commercial activated carbon Norit R3-ex was demineralized with concentrated HF and HCl acids and next heated in an Ar atmosphere at various temperatures (950, 1500, 1800 and 2100°C). For all samples adsorption–desorption isotherms of benzene vapor were determined and X-ray diffraction measurements were performed. On the basis of adsorption data porous structure characteristics were evaluated (by using...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.