Renewable cold plasma exposed activated carbon-derived eucalyptus leaves (EL) as electrode in fabricating low-cost energy storage devices

ABSTRACT

The activated carbon made from Eucalyptus leaves was created using an environmentally friendly physical activation process, and it was then subjected with the low temperature plasma to increase its surface area and porosity, as shown by structural and morphological characteristics. The nanoparticles’ surface layers are altered by the plasma treatment, improving surface characteristics like wettability, adhesion, and surface area that were investigated using structural, morphological, and electrochemical studies. The air-plasma-treated KOH exhibits a specific capacitance of 1591 F/g for 1.5 mA, which can be utilized to prepare an electrode material for the energy storage application. The electrochemical investigation was conducted for the untreated and air, oxygen-plasma-treated carbon, demonstrating the better specific capacitance for the air plasma treatment, which can be used to prepare an electrode material for the low-cost fabrication of the devices.

GRAPHICAL ABSTRACT

KEYWORDS:

• Eucalyptus leaves (EL)
• activated carbon
• plasma treatment
• surface modification
• surface area
• specific capacitance

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Notes on contributors

Judith Fennila

Judith fennila is a reasearch scholar doing reserach in the field of plasma physics for nearly 3 years- First Author writing original draft.

K A Vijayalakshmi

Dr. K A Vijayalakashmi is a Associate professor in the field of plasma physics, nearly 30 years of experience, she produces 14 Ph.d scholars & 24 M. Phil scholars and published 85 articles in the repurted journal -Corresponding Author and supervision.