Details

Autor(en) / Beteiligte

• Mumtaz, Muhammad Azhar
• Afzal, Amir Muhammad
• Iqbal, Muhammad Waqas
• Waris, Muhammad Hamza
• Hussain, Zahid
• Ishafaq, M. U. U.
• Usman, Muhammad
• Naz, Aleesha
• Wabaidur, Saikh Mohammad
• Al-Ammar, Essam A.
• Mumtaz, Sohail

Titel

Hydrothermally synthesised highly stable binary ZnNbS composite with carbon nanotubes to enhance the redox active sites in energy storage devices

Ist Teil von

• Applied physics. A, Materials science & processing, 2024, Vol.130 (1), Article 29

Ort / Verlag

Berlin/Heidelberg: Springer Berlin Heidelberg

Erscheinungsjahr

2024

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Energy storage devices have attained a lot of interest because of the large demand for energy in the present era. Carbon nanotubes have attained huge interest in energy applications because of their extraordinary conductivity, sensitivity, and storage capability. In this work, the zinc niobium sulfide (ZnNbS) is synthesized using the hydrothermal method. A remarkable value of the specific capacity ( C s ) of 1054.21 Cg −1 is obtained, which is comparatively better than the reference sample. Besides, the CNTs-doped ZnNbS and activated carbon (ZnNbS/CNT//AC) are utilised to design the hybrid supercapacitor. The hybrid device showed a high value of C s of 196.1 Cg −1 at 2 Ag −1 . Further, the hybrid supercapacitor exhibited an improved value of energy density (39.4 WhKg −1 ) and power density (2400 WKg −1 ), which is much improved compared to the previously reported values. To check the stability of the device, it is measured up to 5000 charging/discharging cycles. The device showed 95% of capacity retention. Our findings provide a new platform for designing high-performance supercapattery-type energy storage devices. The doping of CNT in sulfide-based materials opens new possibilities to design high performance energy storage devices.