An array of microliter-sized microbial fuel cells generating 100 μw of power

Seokheun Choi; Junseok Chae

doi:10.1016/j.sna.2011.07.020

An array of microliter-sized microbial fuel cells generating 100 μw of power

Seokheun Choi, Junseok Chae

Research output: Contribution to journal › Article › peer-review

61 Scopus citations

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)
Pages (from-to)	10-15
Number of pages	6
Journal	Sensors and Actuators, A: Physical
Volume	177
DOIs	https://doi.org/10.1016/j.sna.2011.07.020
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

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10.1016/j.sna.2011.07.020

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AB - 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.

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KW - Power density

KW - Series connection

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An array of microliter-sized microbial fuel cells generating 100 μw of power

Abstract

Keywords

ASJC Scopus subject areas

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