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231224s2012 xx |||||o 00| ||eng c |
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|a 10.1021/la301469u
|2 doi
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|a pubmed24n0727.xml
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|a (NLM)22646229
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|a DE-627
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|e rakwb
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|a eng
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1 |
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|a Kuila, Tapas
|e verfasserin
|4 aut
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|a Facile method for the preparation of water dispersible graphene using sulfonated poly(ether-ether-ketone) and its application as energy storage materials
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|c 2012
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Completed 31.10.2012
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|a Date Revised 26.06.2012
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a A simple and effective method for the preparation of water dispersible graphene using sulfonated poly(ether-ether-ketone) (SPEEK) has been described. The SPEEK macromolecules are noncovalently adsorbed on the surface of graphene through π-π interactions. The SPEEK-modified graphene (SPG) forms an aqueous dispersion that is stable for more than six months. An analysis of the ultraviolet-visible spectra shows that the aqueous dispersion of SPG obeys Beer's law and the molar extinction coefficient has been found to be 149.03 mL mg(-1) cm(-1). Fourier transform infrared, Raman, and X-ray photoelectron spectroscopy analyses confirm successful reduction and surface modification of graphene. An atomic force microscopy (AFM) analysis reveals the formation of a single layer of functionalized graphene. Transmission electron microscopy results are also in good agreement with the AFM analysis and support the formation of single-layer graphene. SPG shows good electrochemical cyclic stability during cyclic voltammetry and charge/discharge process when used as a supercapacitor electrode. A specific capacitance of 476 F g(-1) at a current density of 6.6 A g(-1) is observed for SPG materials
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|a Journal Article
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|a Mishra, Ananta Kumar
|e verfasserin
|4 aut
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|a Khanra, Partha
|e verfasserin
|4 aut
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|a Kim, Nam Hoon
|e verfasserin
|4 aut
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|a Uddin, Md Elias
|e verfasserin
|4 aut
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|a Lee, Joong Hee
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 28(2012), 25 vom: 26. Juni, Seite 9825-33
|w (DE-627)NLM098181009
|x 1520-5827
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| 773 |
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|g volume:28
|g year:2012
|g number:25
|g day:26
|g month:06
|g pages:9825-33
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|u http://dx.doi.org/10.1021/la301469u
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