Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7732779 | Journal of Power Sources | 2015 | 7 Pages |
Abstract
A kind of nitrogen- and oxygen-containing activated carbon nanotubes (ACNTs) has been prepared by carbonization and activation of polyaniline nanotubes obtained by rapidly mixed reaction. The ACNTs show oxygen content of 15.7% and nitrogen content of 2.97% (atomic ratio). The ACNTs perform high capacitance and good rate capability (327Â FÂ gâ1 at the current density of 10Â AÂ gâ1) when used as the electrode materials for supercapacitors. Hydrogen reduction has been further used to investigate the effects of surface functional groups on the electrochemical performance. The changes for both structural component and electrochemical performance reveal that the quinone oxygen, pyridinic nitrogen, and pyrrolic nitrogen of carbon have the most obvious influence on the capacitive property because of their pseudocapacitive contributions.
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Authors
Haiyan Liu, Huaihe Song, Xiaohong Chen, Su Zhang, Jisheng Zhou, Zhaokun Ma,