Speaker
Ms
Belinda Moyo
(University of Pretoria)
Description
In this study, a detailed analysis of the electrochemical performance of activated carbon/Nickel-Aluminium layered double hydroxide (AC/NiAl-LDH) composites were investigated as potential electrode materials for electrochemical capacitors. The activated carbon (AC) was prepared via optimization of the carbonization temperature and activating agent (potassium hydroxide) from a tree-bark biomass raw material. Subsequently, porous NiAl-LDH was also obtained using a solvothermal technique by varying the syntheses times. The optimized activated carbon sample was then added to the NiAl-LDH sample in different masses to produce an AC/NiAl-LDH composite material. The morphology revealed an interconnected framework of both the AC and LDH structures. The specific surface area (SSA) of the AC/NiAl-LDH composite was seen to improve with an increase in the amount of AC added to the NiAl-LDH material. This increase in SSA enabled a better charge transfer propagation and charge storage within the composite when adopted as electrodes for supercapacitor. A specific capacity of 18.90 mAh/g was obtained for the AC/NiAl-LDH composite material. The results obtained demonstrate the potential of this composite material as electrodes for energy storage devices.
Level for award<br> (Hons, MSc, <br> PhD, N/A)?
Msc
Would you like to <br> submit a short paper <br> for the Conference <br> Proceedings (Yes / No)?
No
Main supervisor (name and email)<br>and his / her institution
Professor Ncholu Manyala
Ncholu.Manyala@up.ac.za
University of Pretoria
Apply to be<br> considered for a student <br> award (Yes / No)?
Yes
Primary author
Ms
Belinda Moyo
(University of Pretoria)
Co-authors
Dr
Abdulhakeem Bello
(Department of Physics University of Pretoria)
Dr
Damilola Momodu
(UNIVERSITY OF PRETORIA)
Dr
Ncholu Manyala
(University of Pretoria)
