期刊
RSC ADVANCES
卷 7, 期 8, 页码 4297-4305出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6ra27127h
关键词
-
资金
- National Natural Science Foundation of China [U1462110]
Micro/mesoporous carbon sheets with high specific surface area (up to 2360 m(2) g(-1)) were successfully prepared by using watermelon peel as a carbon source through a simple activation method and were originally developed as highly efficient electrodes for flow-through deionization capacitors to remove NaCl from saltwater solutions. The carbon source is low-cost and the approach is very simple, effective and environmentally-friendly. Owing to the micro/mesoporous structure and high specific area, the obtained electrode presents a superior wettability and good electrochemical performance. In the deionization experiments, the electrodes show a high deionization capacity of 17.38 mg g(-1) at 1.2 V in a 500 mg L-1 NaCl solution. Besides, the electrodes possess a high deionization rate at 0.8-1.4 V in 100-500 mg L-1 NaCl solutions. The electrodes also present a good regeneration behavior. The good performance makes the electrodes promising candidates for flow-through deionization capacitors. We also hope that the micro/mesoporous carbon sheets can be applied to other areas.
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