N-doped porous reduced graphene oxide as an efficient electrode material for high performance flexible solid-state supercapacitor
| Title | N-doped porous reduced graphene oxide as an efficient electrode material for high performance flexible solid-state supercapacitor |
| Publication Type | Journal Article |
| Year of Publication | 2017 |
| Authors | Singh, SK, Dhavale, VM, Boukherroub, R, Kurungot, S, Szunerits, S |
| Journal | Applied Materials Today |
| Volume | 8 |
| Pagination | 141-149 |
| Date Published | SEP |
| Type of Article | Article |
| Abstract | Supercapacitors (SCs) are energy storage devices with an immense potential to resolve energy related issues. Being a low cost, durable and multifunctional material, graphene and its derivatives are the most promising candidates for SCs. Here, we report the synthesis of N-doped porous reduced graphene (N-pGr) and its use for the fabrication of all-solid-state supercapacitor (ASSC) device. The N-pGr exhibited a specific capacitance of 230 F g(-1) at 1 A g(-1) current density and good capacitance retention up to 88% even after 10,000 galvanostatic charge-discharge cycles recorded at 5 A g(-1) fabricated in a solid-state supercapacitor. The synergistic effect of the porosity and N-doping is believed to be the underlying principle for the improved charge storage ability when compared to other reports. Significantly, the porous nature of N-pGr contributes in increasing the electroactive surface area for the formation of electrical double layer as well as facilitating the faster movement of electrolyte ions inside the electrode network. N-doping is believed to change the electrical properties of the electrode material and also to participate in the pseudo-capacitance which helped to boost the overall capacitance of the fabricated device. The good capacitance retention provides the room for making robust flexible solid-state supercapacitor (FSSC) with the N-pGr material. |
| DOI | 10.1016/j.apmt.2016.10.002 |
| Type of Journal (Indian or Foreign) | Foreign |
| Impact Factor (IF) | 1.691 |
Divison category:
Physical and Materials Chemistry
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