期刊
JOURNAL OF MATERIALS CHEMISTRY
卷 19, 期 37, 页码 6773-6779出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/b907703k
关键词
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资金
- Scientific Research Foundation for the Returned Overseas Chinese Scholars
- Ministry of Education, Special Project for Nanotechnology of Shanghai [0752nm011]
- Special Project for Shanghai R & D Public Service Platform [07DZ22944]
Graphene has been synthesized by the modified Hummers method and used as electrosorptive electrodes for capacitive deionization. Batch-mode experiments in NaCl solutions at low voltage (<= 2 V) are conducted in a continuously recycling system to investigate the electrosorption performance of graphene. The results show that the graphene exhibits a high electrosorption capacity of 1.85 mg/g. The ion sorption follows a Freundlich isotherm, indicating monolayer adsorption. And the electrosorption of NaCl onto graphene electrodes is driven by a physisorption process by taking into account the thermodynamic parameters.
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