Preparation of capacitor’s electrode from cassava peel waste

Ismanto, Adrian Evan, Wang, Steven, Soetaredjo, Felycia Edi and Ismadji, Suryadi (2010) Preparation of capacitor’s electrode from cassava peel waste. Bioresource Technology, 101 (10). 3534 -3540. ISSN 0960-8524

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Official URL: http://www.sciencedirect.com/science/article/pii/S...

Abstract

Cassava peel was used as the precursor for activated carbon-based electrodes which were then prepared by a combination of chemical and physical activation. The surface of the activated carbon was treated with the oxidative chemical agents, 98 wt.% H2 SO4 , 65 wt.% HNO3, and 30 wt.% H2 O2 solutions. The surface modification had no significant effect on the specific surface area, but greatly influenced the surface chemistry of the carbons. The presence of oxygen-containing groups increased the polarity and hydrophi-licity of activated carbon, and thus improved the performance of the activated carbon-based electrode. As a result, the specific capacitance of the HNO3 modified AC-electrode reached 264.08 F/g, an increase of 72.6% compared to the original one. The results indicate that cassava peel waste can potentially be applied as a raw material for the production of low cost-high performance activated carbon electrode materials for Electric Double Layer Capacitors (EDLCs).

Item Type:	Article
Uncontrolled Keywords:	Activated carbon Electric Double Layer Capacitor Cassava peel Surface modification Electrode material
Subjects:	Engineering > Chemical Engineering
Divisions:	Faculty of Engineering > Chemical Engineering Study Program
Depositing User:	Felycia Edi Soetaredjo
Date Deposited:	17 Jul 2017 06:46
Last Modified:	22 May 2018 07:40
URI:	http://repository.ukwms.ac.id/id/eprint/11158

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