Formation of graphitic tubules from ordered mesoporous carbon and their effect on supercapacitive energy storage

Li, Jiansheng, Fiset, Erika, Yang, Jie, Yuan, Pei, Ling, Xiaofeng, Hulicova-Jurcakova, Denisa, Yu, Chengzhong and Wang, Lianjun (2012) Formation of graphitic tubules from ordered mesoporous carbon and their effect on supercapacitive energy storage. Journal of Materials Chemistry, 22 40: 21472-21480. doi:10.1039/c2jm33889k


Author Li, Jiansheng
Fiset, Erika
Yang, Jie
Yuan, Pei
Ling, Xiaofeng
Hulicova-Jurcakova, Denisa
Yu, Chengzhong
Wang, Lianjun
Title Formation of graphitic tubules from ordered mesoporous carbon and their effect on supercapacitive energy storage
Journal name Journal of Materials Chemistry   Check publisher's open access policy
ISSN 0959-9428
1364-5501
Publication date 2012-10
Sub-type Article (original research)
DOI 10.1039/c2jm33889k
Open Access Status Not Open Access
Volume 22
Issue 40
Start page 21472
End page 21480
Total pages 9
Place of publication Cambridge, United Kingdom
Publisher Royal Society of Chemistry
Collection year 2013
Language eng
Formatted abstract
Mesoporous carbon materials with controlled pore and wall structures have promising applications in energy storage. In this work, we prepare a series of ordered mesoporous carbons (OMCs) by adjusting the pyrolysis temperature via a soft templating and catalytic graphitization approach. The structure of graphitic tubules formed in the pyrolysis process from the hexagonally ordered OMCs is investigated using electron tomography. It is observed that the long axis of the tubules is parallel to the mesochannels, i.e. along the [001] direction. The structural parameters and electrochemical properties of the OMCs are comprehensively characterized. From our systematic study it is concluded that in order to prepare OMCs with high capacitance, good retention and excellent cyclability, an optimised synthesis condition is adjusted at which graphitisation is maximised while the formation of graphitic tubules is inhibited. OMC synthesized at an optimum temperature of 800 °C provided a high specific gravimetric capacitance of 182 F g -1 at the current load of 0.025 A g -1 in 1 M H 2SO 4 and retained 74% capacitance at a high current load of 5 A g -1, whilst also providing a stable cycling performance up to 10000 cycles at this strenuous load. Our work has shed new light on the designed synthesis of OMCs with improved performance as supercapacitors for energy storage applications
Keyword Double Layer Capacitance
Electrochemical Capacitance
Electron Tomography
Activated Carbons
Catalytic Graphitization
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2013 Collection
Australian Institute for Bioengineering and Nanotechnology Publications
 
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