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Facile synthesis of nitrogen-doped hierarchical porous lamellar carbon for high-performance supercapacitors
| Content Provider | Semantic Scholar |
|---|---|
| Author | Yang, Wang Du, Zhiling Ma, Zhipeng Wang, Guiling Bai, Heping Shao, Guangjie |
| Copyright Year | 2016 |
| Abstract | Three-dimensional (3D) interconnected N-enriched hierarchical porous lamellar carbon (NPLC) with a multilevel pore structure has been fabricated by a wet impregnation method using waste nitrogen-containing mantis shrimp shell as a carbon precursor and KOH as an impregnation solution. The synthesized NPLC-2 shows a large surface area of 1222.961 m2 g−1 calculated by the BET method, a hierarchical porous structure analyzed by the density functional theory (DFT) model, and a high nitrogen content of 1.78% quantified by X-ray photoelectron spectroscopy (XPS). Moreover, the NPLC-2 sample exhibits an ultra-high specific capacitance of 312.62 F g−1 at 0.3 A g−1, excellent rate capability with a specific capacitance of 272.56 F g−1 at 20.0 A g−1 and outstanding cycling stability with around 96.26% capacitance retention after 10 000 cycles at a high current density of 20.0 A g−1. In addition, NPLC-2 presents a high energy density of 15.05 W h kg−1 at 270 W kg−1, and up to 10.12 W h kg−1 even at a large power density of 14 580 W kg−1. Therefore, the prepared material can be applied in high energy density and high power density demanding fields. |
| Starting Page | 3942 |
| Ending Page | 3950 |
| Page Count | 9 |
| File Format | PDF HTM / HTML |
| DOI | 10.1039/C5RA21431A |
| Volume Number | 6 |
| Alternate Webpage(s) | http://www.rsc.org/suppdata/c5/ra/c5ra21431a/c5ra21431a1.pdf |
| Alternate Webpage(s) | https://pubs.rsc.org/en/content/getauthorversionpdf/C5RA21431A |
| Alternate Webpage(s) | https://doi.org/10.1039/C5RA21431A |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
