Projects per year
Currently, more than 80 % of commercial supercapacitors utilize chemically synthesized carbon nanomaterials which are expensive and necessitates non-renewable resources. Employing renewable, environment friendly and naturally available biomass feedstock as precursor for producing carbon materials is a low-cost and sustainable way for designing the electrodes of supercapacitors. In the present study, high surface area hierarchical porous multilayered graphene-like carbon is obtained via room temperature sono-exfoliation of the activated carbon synthesized via simple and environmentally friendly hydrothermal carbonization and potassium bicarbonate activation of waste hazelnut shells as the precursor. The high surface area graphene-like carbon showed excellent electrochemical performance with specific capacitance of 320.9 F g-1 at 0.2 A g-1 current density and exceptional capacitance retention of 77.8 % at 2 A g-1 current density after 10000 cycles in 1 M Na2SO4 electrolyte. Moreover, flexible supercapacitors fabricated using sono-exfoliated graphene-like activated carbon coated stainless steel mesh electrodes and biopolymer gel electrolyte exhibits an outstanding energy density of 38.7 W h kg-1 and power density of 198.4 W kg-1. These results show that mechanically exfoliated graphene-like activated carbon derived from hazelnut shells exhibit superior electrochemical performance that can compete with other activated carbon materials used in energy storage devices for real time applications.
|Number of pages||26|
|Journal||International Journal of Energy Research|
|Early online date||5 Jul 2022|
|Publication status||Published - 10 Oct 2022|
- activated carbon
- bio-polymer electrolyte
- flexible supercapacitor
- hazelnut shell
FingerprintDive into the research topics of 'Sono-exfoliated graphene-like activated carbon from hazelnut shells for flexible supercapacitors'. Together they form a unique fingerprint.
- 2 Active
Centre for Interdisciplinary Sustainable Practices of Research in Energy (C-INSPRE) - Strathclyde CDT
Ivaturi, A., Robertson, S., Comerford, D. & Eisler, M.
1/07/19 → …
Project: Research Studentship Case - Internally allocated
Highly Efficient Elastic Perovskite Solar Cells
EPSRC (Engineering and Physical Sciences Research Council)
1/09/17 → 30/11/23
Project: Research Fellowship