Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4907589 | Journal of Electroanalytical Chemistry | 2017 | 23 Pages |
Abstract
Capacitive deionization (CDI) has been attracted great interest as an emerging desalination technology and the electrode materials play a critical role on improving CDI performance. In this work, nitrogen-enriched activated carbon fibers (AN-CFs) were prepared from the natural based silk cocoon through simple carbonization and CO2 activation. Their electrochemical and electrosorption behaviors were studied in NaCl solution. The results show that AN-CFs exhibit a fibri form porous structure with rich nitrogen element and CO2 activation enhances their specific surface area. Compared with unactivated nitrogen-enriched carbon fibers (196.05 F gâ 1 at 1 mV sâ 1, 12.02 mg gâ 1 in 1000 mg lâ 1 NaCl solution), AN-CFs exhibit more excellent capacitive (236.03 F gâ 1) and CDI (16.56 mg gâ 1) performances, showing that CO2 activation is proved to be an effective method to improve electrochemical and electrosorption performances and the AN-CFs should be a promising electrode material for CDI application.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Chemical Engineering (General)
Authors
Lu Zhang, Yong Liu, Ting Lu, Likun Pan,