Effect of COD and H2O2 concentration on DC-MFC
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Date
2015-05
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Elsevier
Abstract
The main challenges in constructing microbial fuel cells (MFCs) are the identification of materials and
architectures that maximize power generation and efficiency, also minimizing the cost of fabrication. In
some cases aqueous cathodes have been used to provide dissolved oxygen to the electrode. An attempt.
has been made to use hydrogen peroxide (H2O2) in different concentrations as substitute for ferricyanide
and permanganate as catholyte in DC-MFCs. It has been found that the power generation was not
significantly affected by the 20%e60% and 100% concentrations while 80% concentration exhibited higher
power generation. Power densities were virtually dependent on the chemical oxygen demands (CODs) as
observed to be 24.56 W/m2 for Balance substrate (7562 mg/L) against 80% H2O2. This confirms that H2O2
is a very powerful oxidizing agent between the concentrations of 70%e90%.
Description
This article is published by Elsevier 2015 and is also available at http://dx.doi.org/10.1016/j.renene.2015.04.046
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Renewable Energy 83 (2015) 1299e1304