Biological fuel cells (BFCs) are being widely researched
these days as a means to produce combustion-less electrical energy from organic
compounds present in waste water. BFCs are capable of oxidizing many complex and
simple organic compounds.
BFCs open up the possibility of producing electrical energy
directly from biomass feed stocks that are renewable and carbon-neutral fuels.
Currently, however, this technology is limited by the development of a pH
gradient across the anode/cathode compartments of the cell that results in
approximately a 20% loss in available energy output.
Researchers at the Biodesign Institute of Arizona State
University have discovered new methods and devices for reducing the pH gradient
between the cathode and anode compartments in fuel cells by supplying carbon
dioxide to the cathode compartment. The gas flow to the cathode is controlled
and maintained at a sufficient concentration to reduce the pH gradient and raise
the energy output efficiency.
The technology can improve the performance of BFCS and make
them a more viable source of renewable energy.
Potential Applications
- Alternative energy source
- Renewable energy source
Benefits and Advantages
- Improves biological fuel cell performance by increasing
power output
- Carbon dioxide produced in the anode chamber can be
recycled to the cathode chamber
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For more information about the inventor(s) and their
research, please see
Dr.
Rittmann's directory webpage
