Optimizing reduced graphene oxide aerogel for a supercapacitor

Poh Lee, Soon and Gomaa, A.M. Ali and H.H., Hegazy and Lim, Hong Ngee and Chong, Kwok Feng (2021) Optimizing reduced graphene oxide aerogel for a supercapacitor. Batteries & Energy, 35 (5). pp. 4559-4569. (Published)

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Abstract

Reduce graphene oxide (rGO) aerogels with different precursor graphene oxide sheet sizes are synthesized using L-ascorbic acid reduction followed by an ambient pressure drying method. The sheet sizes determine the oxygen functionality content during aerogel formation, which subsequently affect its structural properties. The optimized sheet size renders strong parallel sheet stacking to provide mechanical strength that withstands capillary action during aerogel formation with a high surface area (190.40 m2 g−1) and pore volume (0.261 cm3 g−1). Such surface properties enhance the electrochemical properties of rGO aerogel (182 F g−1 at 0.75 A g−1) and render it to be an excellent electrode material for a supercapacitor.

Item Type:	Article
Uncontrolled Keywords:	Capacitors,; two dimensional materials; electrical properties; oxygen; aerogels
Subjects:	T Technology > TP Chemical technology
Faculty/Division:	Faculty of Industrial Sciences And Technology Institute of Postgraduate Studies
Depositing User:	Miss. Ratna Wilis Haryati Mustapa
Date Deposited:	20 Sep 2021 15:30
Last Modified:	20 Sep 2021 15:30
URI:	http://umpir.ump.edu.my/id/eprint/30818
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