In-situ Mg-Al LDH infused lignin-derived laser scribed graphene for facilitated ion transport in flexible supercapacitor application

Remesh, Sathaniswarman and Vasudevan, Mugashini and Sivakumar, Mineesha and Perumal, Veeradasan and Ovinis, Mark and Karuppanan, Saravanan and Edison, Thomas Nesakumar Jebakumar Immanuel and Raja, Pandian Bothi and Ibrahim, Mohamad Nasir Mohamad and Latip, Ahmad Faiz Bin Abdul and Arumugam, Natarajan and Kumar, Raju Suresh (2023) In-situ Mg-Al LDH infused lignin-derived laser scribed graphene for facilitated ion transport in flexible supercapacitor application. Journal of the Taiwan Institute of Chemical Engineers, 153. p. 105247. ISSN 1876-1070

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In-situ_Mg-Al_Delaminated_Layered_Double_Hydroxide_Infused_Lignin-Derived_Laser_Scribed_Graphene_for_Facilitated_Ion_Transport_in_Flexible_Supercapacitor_Application_.pdf - Accepted Version
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Innovations in the synthesis of hybrid materials have led to technology advancement of the microsupercapacitor. Delaminated layered double hydroxide (LDH) reduces self-agglomeration and increases energy density in graphene-based supercapacitors. The incorporation of delaminated LDH with oil palm lignin derived laser scribed graphene in neutral PAAS/K2SO4 gel electrolyte for flexible microsupercapacitor applications was investigated.

Various concentrations of positively charged sucrose-delaminated Mg-Al LDH nanosheets produced through the coprecipitation method were hybridised with negatively charged oil palm lignin-derived laser scribed graphene (L-LSG) through electrostatic interaction.

Significant Findings
Hybrid laser scribed graphene developed from delaminated Mg-Al LDH at a concentration of 10 gL−1 (L-LSG/D-MgAl-10) had the largest surface area of 49.335 m2g−1. The incorporation of Mg-Al LDH nanosheets on l-LSG were further validated by FESEM, TEM, XRD, Zeta potential and other characterizations. It also had the highest areal capacitance and energy density, measuring 40 mFcm−2 and 0.00296 mWhcm−2, respectively, at a current density of 0.08 mAcm−2. The fabricated microsupercapacitor has exceptional bending capabilities and capacitance retention of 89.2% after 5000 cycles. In summary, by inducing additional pseudocapacitance, delaminated Mg-Al LDH improved the overall effectiveness of the oil

Item Type: Article
Identification Number:
17 November 2023Accepted
22 November 2023Published Online
Uncontrolled Keywords: Delaminated layered double hydroxide, Oil palm lignin, Laser scribed graphene, Flexible 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 15:38
Last Modified: 02 Jul 2024 15:38

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