Journal
DIAMOND AND RELATED MATERIALS
Volume 88, Issue -, Pages 18-22Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.diamond.2018.06.018
Keywords
Activated carbon; Corn stalk core; Electrochemistry; Supercapacitor
Categories
Funding
- National Science Foundation of China [51275203]
- Project of Education Department of Jilin Province [JJKH20180130KJ]
- Key Scientific and Technological Project of Jilin Province [20140204052GX, 20180201074GX]
- China Postdoctoral Science Foundation [2017M611321]
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The activated carbon materials from the corn stalk core raw materials were prepared through the carbonization and activation process and applied as electrode in supercapacitor. The biomass carbon materials activated under different temperatures were tested by cyclic voltammetry, electrochemical impedance spectroscopy and galvanostatic charge-discharge cycling method. The corn stalk core-derived material activated at 700 degrees C with the highest specific surface area (2349.89 m(2) g(-1)) has exhibited the maximum specific capacitance of 140 F g(-1) Further detailed characterization and theoretical analysis have demonstrated that the corn stalk core derived activated carbon anode material can not only enhance the capacity of supercapacitor but also realize the comprehensive utilization of corn stalks.
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