Methods and apparatus for increasing biofilm formation and power output in microbial fuel cells
First Claim
1. An anode material in a microbial fuel cell having an electrode compartment, wherein the anode material comprises a microbial biofilm grown on a three-dimensional ordered open-cellular microstructure;
- wherein the three-dimensional ordered open-cellular microstructure comprises;
a plurality of first truss elements defined by a plurality of first self-propagating polymer waveguides and extending along a first direction;
a plurality of second truss elements defined by a plurality of second self-propagating polymer waveguides and extending along a second direction; and
a plurality of third truss elements defined by a plurality of third self-propagating polymer waveguides and extending along a third direction, wherein the first, second, and third ordered truss elements interpenetrate each other at a plurality of nodes to form a continuous material.
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Abstract
A method and an apparatus is provided for increasing biofilm formation and power output in microbial fuel cells. An anode material in a microbial fuel cell has a three-dimensional and ordered structure. The anode material fills an entire anode compartment, and it is arranged to allow fluid flow within the anode compartment. The power output of microbial fuel cells is enhanced, primarily by increasing the formation and viability of electrogenic biofilms on the anodes of the microbial fuel cells. The anode material in a microbial fuel cell allows for the growth of a microbial biofilm to its natural thickness. In the instance of members of the Geobacteraceae family, the biofilm is able grow to a depth of about 40 microns.
21 Citations
6 Claims
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1. An anode material in a microbial fuel cell having an electrode compartment, wherein the anode material comprises a microbial biofilm grown on a three-dimensional ordered open-cellular microstructure;
- wherein the three-dimensional ordered open-cellular microstructure comprises;
a plurality of first truss elements defined by a plurality of first self-propagating polymer waveguides and extending along a first direction;
a plurality of second truss elements defined by a plurality of second self-propagating polymer waveguides and extending along a second direction; and
a plurality of third truss elements defined by a plurality of third self-propagating polymer waveguides and extending along a third direction, wherein the first, second, and third ordered truss elements interpenetrate each other at a plurality of nodes to form a continuous material. - View Dependent Claims (2, 3, 4, 5, 6)
- wherein the three-dimensional ordered open-cellular microstructure comprises;
Specification