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Issue 37, 2009
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Electrosorption behavior of graphene in NaCl solutions

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Abstract

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.

Graphical abstract: Electrosorption behavior of graphene in NaCl solutions

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Publication details

The article was received on 16 Apr 2009, accepted on 18 Jun 2009 and first published on 21 Jul 2009


Article type: Paper
DOI: 10.1039/B907703K
Citation: J. Mater. Chem., 2009,19, 6773-6779
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    Electrosorption behavior of graphene in NaCl solutions

    H. Li, T. Lu, L. Pan, Y. Zhang and Z. Sun, J. Mater. Chem., 2009, 19, 6773
    DOI: 10.1039/B907703K

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