|
|||||
|
|
ADSORPTION ISOTHERMS AND POTENTIAL DISTRIBUTIONS OF NITROGEN ON VARIOUS ACTIVATED CARBONS |
|
| Authors: | LI Xiang LI Zhong LUO lingai |
| Institution: | 1. Chemistry Department of Zhaoqing University, Zhaoqing 526061, China 2. The Institute of Chemical Engineering South China University of Technology, Guangzhou 510640, China 3. Locie Esigec-Université de Savoie, Campus Scientifique, Savoie Technolac 73376 Le Bourget-Du-Lac cedex, France |
| Abstract: | The adsorption isotherms of four activated carbons (Norit RB1, Chemviron BPL, Monolit, and Ambersorb-572) have been examined by nitrogen adsorption at 77.5 K. A method for adsorption potential distribution calculation has been proposed based on the adsorption isotherms. This distribution provides information about possible changes in the Gibbs free energy caused by the energetic and geometrical heterogeneities of an activated carbon as well as by the adsorbate-related entropic effects. The general character of the adsorption potential distribution is clearly visible by its simple relation to the micropore and mesopore distribution. |
| Keywords: | Adsorption isotherms Adsorption potential distributions Micropore Structure Structural heterogeneity |
| 本文献已被 维普 万方数据 等数据库收录！ | |