3 Citations (Scopus)

Abstract

We report a micro-scale microbial fuel cell (MFC), having an ultramicroelectrode (UME) as its anode, aiming for a miniaturized energy converter of carbon-neutral renewable energy. Micro-scale MFCs have been studied for many years, yet the power density of them is orders of magnitude lower than that of macro-scale counterparts. In order to address this limitation, this work utilizes a ring-shape UME, which aims to enhance the diffusion of ions at the vicinity of micro-organisms, forming their biofilm on the UME. Areal and volumetric power densities of 7.72 W/m2 and 3,658 W/m3 are obtained, respectively; both are the highest ever reported among all MFCs to date, regardless of their sizes. In addition to the power densities, coulombic efficiency (CE) of 70 % and energy efficiencies of 20 % are marked, which makes the micro-scale MFC an attractive alternative in existing energy conversion portfolio.

Original languageEnglish (US)
Title of host publicationProceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS)
Pages869-872
Number of pages4
DOIs
StatePublished - 2013
EventIEEE 26th International Conference on Micro Electro Mechanical Systems, MEMS 2013 - Taipei, Taiwan, Province of China
Duration: Jan 20 2013Jan 24 2013

Other

OtherIEEE 26th International Conference on Micro Electro Mechanical Systems, MEMS 2013
CountryTaiwan, Province of China
CityTaipei
Period1/20/131/24/13

Fingerprint

Microbial fuel cells
Biofilms
Energy conversion
Energy efficiency
Macros
Anodes
anodes
Carbon
Ions
radiant flux density
cells
direct power generators
biofilms
renewable energy
energy conversion
organisms
fuel cells
carbon
rings
ions

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Mechanical Engineering
  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

Cite this

Ren, H., Rangaswami, S., Lee, H. S., & Chae, J. (2013). A micro-scale microbial fule cell (MFC) having ultramicroelectrode (UME) anode. In Proceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS) (pp. 869-872). [6474381] https://doi.org/10.1109/MEMSYS.2013.6474381

A micro-scale microbial fule cell (MFC) having ultramicroelectrode (UME) anode. / Ren, Hao; Rangaswami, Sriram; Lee, Hyung Sool; Chae, Junseok.

Proceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS). 2013. p. 869-872 6474381.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Ren, H, Rangaswami, S, Lee, HS & Chae, J 2013, A micro-scale microbial fule cell (MFC) having ultramicroelectrode (UME) anode. in Proceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS)., 6474381, pp. 869-872, IEEE 26th International Conference on Micro Electro Mechanical Systems, MEMS 2013, Taipei, Taiwan, Province of China, 1/20/13. https://doi.org/10.1109/MEMSYS.2013.6474381
Ren H, Rangaswami S, Lee HS, Chae J. A micro-scale microbial fule cell (MFC) having ultramicroelectrode (UME) anode. In Proceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS). 2013. p. 869-872. 6474381 https://doi.org/10.1109/MEMSYS.2013.6474381
Ren, Hao ; Rangaswami, Sriram ; Lee, Hyung Sool ; Chae, Junseok. / A micro-scale microbial fule cell (MFC) having ultramicroelectrode (UME) anode. Proceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS). 2013. pp. 869-872
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