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- Title
Study of carbon aerogel-activated carbon composite electrodes for capacitive deionization application.
- Authors
Kohli, D. K.; Singh, Rashmi; Singh, M. K.; Singh, Ashish; Khardekar, R. K.; Sankar, P. Ram; Tiwari, Pragya; Gupta, P. K.
- Abstract
Electrodes synthesized using mesoporous carbon aerogel (CA), microporous-activated carbon (AC), and different combinations of the two were evaluated for capacitive deionization application. Composite electrodes with CA and AC in the ratio of 75:25 provided the highest specific capacitance value (90 F/g at scan rate of 2mV/s). Further, it was observed that on increasing the scan rates to up to 10mV/s, the reduction in specific capacitance values for the electrodes with 75:25 CA/AC composition was only 5%, whereas the reduction for pure CA and pure AC electrodes were 23 and 52%, respectively. The test cell made using 75:25 CA/AC composite electrodes (size 10 cm 10 cm with material loading of 15mg/cm²) showed fast adsorption and desorption cycle of ~15min and salt removal efficiency of 51% was obtained.
- Subjects
ELECTRODES; DEIONIZATION of water; AEROGELS; CARBON; ACTIVATED carbon; ELECTRIC capacity; ADSORPTION (Chemistry)
- Publication
Desalination & Water Treatment, 2012, Vol 49, Issue 1-3, p130
- ISSN
1944-3994
- Publication type
Article
- DOI
10.1080/19443994.2012.708210