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Facile synthesis of 2D nitrogen-containing porous carbon nanosheets induced by graphene oxide for high-performance supercapacitors
| Content Provider | Semantic Scholar |
|---|---|
| Author | Zhang, Xu Fan, Qiuyu Zhao, Yingyuan Meng, Yulan Xiao, Yonghou Lei, Xiaoting Yang, Juan |
| Copyright Year | 2018 |
| Abstract | Two-dimensional (2D) nitrogen-containing porous carbon nanosheets are prepared in the presence of graphene oxide (GO) as a structure-directing agent by a simple yet facile hydrothermal method. It is found that GO can effectively tune the morphologies of the hydrothermal carbonaceous products, resulting in the unique 2D structures. The as-obtained 2D nitrogen-containing porous carbon nanosheets as electrodes for supercapacitors exhibit a high specific capacitance of 301.6 F g−1 at a current density of 0.5 A g−1 and superior rate capability with a capacitance retention of 70.5% at a high current density of 20 A g−1. The 2D nitrogen-containing porous carbon nanosheet electrodes also exhibit good cycling performance, possessing a high capacitance retention of over 92.3% after 5000 charge–discharge cycles at a current density of 5 A g−1. Such superior electrochemical performance of the 2D nitrogen-containing porous carbon nanosheets could be attributed to the high pseudocapacitive effect of the nitrogen-containing species and the peculiar structural characteristics featuring a short ion transport distance and abundant porous channels. |
| Starting Page | 2494 |
| Ending Page | 2501 |
| Page Count | 8 |
| File Format | PDF HTM / HTML |
| DOI | 10.1039/C8SE00242H |
| Volume Number | 2 |
| Alternate Webpage(s) | http://www.rsc.org/suppdata/c8/se/c8se00242h/c8se00242h1.pdf |
| Alternate Webpage(s) | https://doi.org/10.1039/C8SE00242H |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
