A comparative study of chemical treatment by FeCl3, MgCl2, and ZnCl2 on microstructure, surface chemistry, and double-layer capacitance of carbons from waste biomass

Rufford, Thomas E., Hulicova-Jurcakova, Denisa, Zhu, Zhonghua and Lu, Gao Qing (2010) A comparative study of chemical treatment by FeCl3, MgCl2, and ZnCl2 on microstructure, surface chemistry, and double-layer capacitance of carbons from waste biomass. Journal of Materials Research, 25 8: 1451-1459.

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Author Rufford, Thomas E.
Hulicova-Jurcakova, Denisa
Zhu, Zhonghua
Lu, Gao Qing
Title A comparative study of chemical treatment by FeCl3, MgCl2, and ZnCl2 on microstructure, surface chemistry, and double-layer capacitance of carbons from waste biomass
Formatted title A comparative study of chemical treatment by FeCl3, MgCl2, and ZnCl2 on microstructure, surface chemistry, and double-layer capacitance of carbons from waste biomass
Journal name Journal of Materials Research   Check publisher's open access policy
ISSN 0884-2914
Publication date 2010-08
Sub-type Article (original research)
DOI 10.1557/JMR.2010.0186
Volume 25
Issue 8
Start page 1451
End page 1459
Total pages 9
Place of publication Warrendale, Pa. USA
Publisher Materials Research Society
Collection year 2011
Language eng
Formatted abstract The effect of chemical treatment on the capacitance of carbon electrodes prepared from waste coffee grounds was investigated. Coffee grounds were impregnated with FeCl3 and MgCl2 and then treated at 900 °C. The resultant carbons were compared with activated coffee ground carbons prepared by ZnCl2 treatment. The carbon treatment processes of FeCl3 and MgCl2 were studied using thermal gravimetric analysis, Raman spectroscopy, x-ray photoelectron spectroscopy, and N2 and CO 2 adsorption were used to characterize the activated carbons. Activation with ZnCl2 and FeCl3 produced carbons with higher surface areas (977 and 846 m2/g, respectively) than treatment with MgCl2 (123 m2/g). Electrochemical double-layer capacitances of the carbons were evaluated in 1 M H2SO4 using two-electrode cells. The system with FeCl3-treated carbon electrodes provided a specific cell capacitance of 57 F/g. © 2010 Materials Research Society.
Keyword Activated Carbons
Pore Structure
Energy-storage
Porous Carbons
Supercapacitors
Decomposition
Performance
Fibers
Conductivity
Pyrolysis
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Chemical Engineering Publications
Official 2011 Collection
 
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