Electrocapacitive properties of nitrogen-containing porous carbon derived from cellulose
Article
Lu, Hao, Sun, Xiaoming, Gaddam, Rohit R., Kumar, Nanjundan A. and Zhao, X. S.. 2017. "Electrocapacitive properties of nitrogen-containing porous carbon derived from cellulose." Journal of Power Sources. 360, pp. 634-641. https://doi.org/10.1016/j.jpowsour.2017.05.109
Article Title | Electrocapacitive properties of nitrogen-containing porous carbon derived from cellulose |
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ERA Journal ID | 1470 |
Article Category | Article |
Authors | Lu, Hao, Sun, Xiaoming, Gaddam, Rohit R., Kumar, Nanjundan A. and Zhao, X. S. |
Journal Title | Journal of Power Sources |
Journal Citation | 360, pp. 634-641 |
Number of Pages | 8 |
Year | 2017 |
Publisher | Elsevier |
Place of Publication | Netherlands |
ISSN | 0378-7753 |
1873-2755 | |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.jpowsour.2017.05.109 |
Web Address (URL) | https://www.sciencedirect.com/science/article/pii/S0378775317307607 |
Abstract | A generalised approach to the preparation of nitrogen-containing porous carbon from cellulose for supercapacitor applications is demonstrated in this paper. A sample prepared at a carbonisation temperature of 600 °C with a specific surface area of 781 m2 g−1 and a pore volume of 0.68 cm3 g−1 displayed the best electrocapacitive performance. The well-developed porous structure coupled with the presence of nitrogen-containing functional groups along with nascent hydrogen enabled this sample to exhibit specific capacitances of 248 and 133 F g−1 at current densities of 0.1 and 10 A g−1, respectively, in a symmetric cell with 1 M aqueous H2SO4 solution as the electrolyte. With this electrode, about 89% of the initial capacitance is retained after 2000 cycles at a current density of 1 A g−1. A symmetric supercapacitor fabricated using this carbon in both electrodes exhibits an energy density of 14.6 Wh Kg−1 at a power density of 63.5 W Kg−1 and remains at 7.9 Wh Kg−1 at a power density of 6500 W Kg−1. |
Keywords | Cellulose; Porous carbon; Nitrogen-containing; Nascent hydrogen; Supercapacitor |
ANZSRC Field of Research 2020 | 400401. Carbon capture engineering (excl. sequestration) |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | University of Queensland |
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https://research.usq.edu.au/item/z2325/electrocapacitive-properties-of-nitrogen-containing-porous-carbon-derived-from-cellulose
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