Highly porous graphitic carbon and Ni2P2O7 for a high performance aqueous hybrid supercapacitor
Cited 1 times inCited 0 times in
- Highly porous graphitic carbon and Ni2P2O7 for a high performance aqueous hybrid supercapacitor
- Senthilkumar, Baskar; Khan, Ziyauddin; Park, Seungyoung; Kim, Kyoungho; Ko, Hyunhyub; Kim, Youngsik
- Issue Date
- ROYAL SOC CHEMISTRYROYAL SOC CHEMISTRY
- JOURNAL OF MATERIALS CHEMISTRY A, v.3, no.43, pp.21553 - 21561
- An aqueous Na-ion based hybrid capacitor has been successfully developed by using highly porous graphitic carbon (HPGC) derived from waste writing paper and a new electrode material as a negative and positive electrode, respectively. HPGC was prepared via hydrothermal carbonization and subsequent KOH activation of waste writing paper which showed a highly porous stacked sheet-like morphology with an exceptionally high BET specific surface area (1254 m(2) g(-1)). HPGC exhibited typical electrical double layer capacitor (EDLC) behavior with a high specific capacitance of 384 F g(-1) and good negative working potential (-1.0 V) in an aqueous electrolyte. On the other hand, Ni2P2O7 was synthesized by a simple co-precipitation technique and tested as a cathode material which delivered a maximum specific capacitance of 1893 F g(-1) at 2 A g(-1) current density. The fabricated HPGCMi(2)P(2)O(7) hybrid device displayed excellent cyclic stability up to 2000 cycles and delivered a maximum energy density of 65 W h kg-1 at 800 W kg(-1) power density in a Na-ion based aqueous electrolyte.
- Appears in Collections:
- ECHE_Journal Papers
- Files in This Item:
- There are no files associated with this item.
can give you direct access to the published full text of this article. (UNISTARs only)
Show full item record
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.