Performance Enhancement Of Mems-Based Microbial Fuel Cells (μMFC) For Microscale Power Generation

16th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications

物理学;能源学

Doan, Begüm Sen^1 ; Erkal, Nilüfer Afar^3 ; Özgür, Ebru^3 ; Zorlu, Özge^3 ; Külah, Haluk^1,2,4

Department of Micro and Nanotechnology, Middle East Technical University, Ankara

06800, Turkey^1

Department of Electrical and Electronics Engineering, Middle East Technical University, Ankara

06800, Turkey^2

Mikro Biyosistemler Inc., Ankara

06530, Turkey^3

METU-MEMS Research and Application Center, Ankara

06800, Turkey^4

关键词: Internal resistance;    Load resistances;    Microscale power generation;    Open circuits;    Performance enhancements;    Portable power sources;    Shewanella oneidensis MR-1;    Silicon MEMS;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/773/1/012018/pdf
DOI  :  10.1088/1742-6596/773/1/012018

来源: IOP

【 摘 要 】

This paper reports the design, fabrication, and testing of a microliter scale Microbial Fuel Cell (μMFC) based on silicon MEMS fabrication technology. μMFC systems are operated under different loads or open circuit to compare the effect of different acclimatization conditions on start-up time. Shewanella oneidensis MR-1 is preferred to be the biocatalyst. The internal resistance is calculated as 20 kΩ under these conditions. Acclimatization of μMFC under a finite load resulted in shorter start-up time (30 hours) when compared to the open load case. Power and current densities normalized to anode area are 2 μW/cm2and 12 μA/cm2respectively. When the load resistance value is closer to the internal resistance of the μMFC, higher power and current densities are achieved as expected, and it resulted in a shorter start-up time. Further studies focusing on the different acclimatization techniques for μMFC could pave the way to use μMFCs as fast and efficient portable power sources.