Study on current collector and electrolyte design/electrochemical behaviour of an in-plane lignin derived laser scribed graphene for microsupercapacitor application
Remesh, Sathaniswarman and Vasudevan, Mugashini and Perumal, Veeradasan and Edison, Thomas Nesakumar Jebakumar Immanuel and Raja, Pandian Bothi and Ibrahim, Mohamad Nasir Mohamad and Karuppanan, Saravanan and Ovinis, Mark and Arumugam, Natarajan and Kumar, Raju Suresh (2024) Study on current collector and electrolyte design/electrochemical behaviour of an in-plane lignin derived laser scribed graphene for microsupercapacitor application. Ain Shams Engineering Journal. p. 102889. ISSN 2090-4479
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Study_on_Current_Collector_and_Electrolyte_Design_Electrochemical_Behaviour_of_an_In-Plane_Lignin_derived_Laser_Scribed_Graphene_for_Microsupercapacitor_Application.pdf - Accepted Version Available under License Creative Commons Attribution Non-commercial No Derivatives. Download (846kB) |
Abstract
Current collectors and electrolyte pairs are frequently overlooked in the development of supercapacitors. In electrode design and sealed packaging, the mechanical and chemical properties of the electrolyte must be retained while maintaining the integrity of microelectrodes and current collectors of the microsupercapacitors. In this research, the physical and electrochemical response of copper (Cu) and 316 stainless steel current collector (SS) for lignin-derived laser scribed graphene (L-LSG) microsupercapacitor with K2SO4 (K+) and H2SO4 (H+) as an electrolyte medium was studied. XPS results confirmed a passivation layer on a copper electrode before and after the electrochemical reaction involving H2SO4 as the electrolyte medium of the highly porous L-LSG structure with six pairs of microelectrodes and graphene current collectors. Analysis of the CV and GCD curves shows that the SS/K+ pair is the most suited for an L-LSG microsupercapacitor, with an areal capacitance and energy density of 22.22 mFcm−2 and 0.00153 mWhcm−2, respectively at 0.08 mAcm−2.
| Item Type: | Article | ||||||
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| Identification Number: | https://doi.org/10.1016/j.asej.2024.102889 | ||||||
| Dates: |
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| Uncontrolled Keywords: | Laser scribed graphene, Lignin, Stainless steel, Microsupercapacitor | ||||||
| Subjects: | CAH10 - engineering and technology > CAH10-01 - engineering > CAH10-01-02 - mechanical engineering | ||||||
| Divisions: | Faculty of Computing, Engineering and the Built Environment > College of Engineering | ||||||
| Depositing User: | Gemma Tonks | ||||||
| Date Deposited: | 02 Jul 2024 14:09 | ||||||
| Last Modified: | 02 Jul 2024 14:09 | ||||||
| URI: | https://www.open-access.bcu.ac.uk/id/eprint/15631 |
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