Abstract
We report an array of three microliter-sized microbial fuel cells (MFCs) connected in series. The three MFCs were integrated into a sandwich of two glass slides, incorporating two chambers of 50 μL volumetric capacity that were separated by a cation exchange membrane (CEM). Each anolyte/catholyte chamber was defined by 500-μm thick PTEE (polytetrafluoroethylene) gaskets. The MFCs contained a Geobacter-enriched mixed bacterial culture and ferricyanide, which were independently driven into anolyte/catholyte chambers, respectively. The MFC array produced 100 μW total power (33 μW/cm 2 or 667 μW/cm 3) and 1.8 V output voltage, which are approximately 10 times and 4.5 times higher, respectively, than the maximum values of previously reported microliter-sized MFCs.
Original language | English (US) |
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Pages (from-to) | 10-15 |
Number of pages | 6 |
Journal | Sensors and Actuators, A: Physical |
Volume | 177 |
DOIs | |
State | Published - Apr 1 2012 |
Keywords
- Microbial fuel cells
- Microliter-sized
- Power density
- Series connection
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Instrumentation
- Condensed Matter Physics
- Surfaces, Coatings and Films
- Metals and Alloys
- Electrical and Electronic Engineering