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.% H(2)SO(4), 65 wt.% HNO(3), and 30 wt.% H(2)O(2) 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 hydrophilicity of activated carbon, and thus improved the performance of the activated carbon-based electrode. As a result, the specific capacitance of the HNO(3) modified AC-electrode reached 264.08F/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).
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Ismanto AE,Wang S,Soetaredjo FE,Ismadji Sdoi
10.1016/j.biortech.2009.12.123subject
Has Abstractpub_date
2010-05-01 00:00:00pages
3534-40issue
10eissn
0960-8524issn
1873-2976pii
S0960-8524(09)01821-5journal_volume
101pub_type
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