The hierarchical synthesis of tungsten disulfide coated vertically aligned boron carbon nitride nanotubes composite electrodes for supercapacitors
JOURNAL OF ENERGY STORAGE, cilt.52, 2022 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 52
- Basım Tarihi: 2022
- Doi Numarası: 10.1016/j.est.2022.104964
- Dergi Adı: JOURNAL OF ENERGY STORAGE
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Compendex, INSPEC
- Anahtar Kelimeler: Graphene, Boron carbon nitride nanotubes, WS 2, FCCVD, Specific capacitance, DOPED POROUS CARBON, GRAPHENE MATERIALS, OXIDE COMPOSITE, BCN NANOTUBES, PERFORMANCE, FOAM, FABRICATION
- Atatürk Üniversitesi Adresli: Evet
Özet
This study investigated the specific capacitance, energy density and cyclic stability parameters of a WS2 coated vertically aligned BCN nanotubes (VA-BCN-NTs) composite electrode structure. The specific capacitance of VABCN-NTs was found to be 364 Fg- 1 at a current density of 0.5 Ag- 1. This electrode had 97% of their initial specific capacitance after 10,000 cycles at a current density of 20 Ag- 1, exhibiting excellent cyclic stability. In the three-electrode cell, the specific capacitance of the VA-BCN-NT@WS2 electrode at a current density of 0.5 Ag- 1 was calculated to be 690 Fg- 1. After 5000 cycles at a current density of 20 Ag- 1, the electrode structure had a capacitance value of 74%, showing good stability. In the two-electrode cell, the specific capacitance of the VA-BCN-NT@WS2 symmetrical supercapacitor at a current density of 1 Ag- 1 was found to be 170 Fg- 1. It was observed to have retained 85% of its capacitance after 10,000 cycles over a 1 V potential range. While the energy density of this structure was 23.6 Whkg- 1, the power density was 4250 W kg-1.