TY - GEN
T1 - A micro-scale microbial fule cell (MFC) having ultramicroelectrode (UME) anode
AU - Ren, Hao
AU - Rangaswami, Sriram
AU - Lee, Hyung Sool
AU - Chae, Junseok
PY - 2013
Y1 - 2013
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=84875454826&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84875454826&partnerID=8YFLogxK
U2 - 10.1109/MEMSYS.2013.6474381
DO - 10.1109/MEMSYS.2013.6474381
M3 - Conference contribution
AN - SCOPUS:84875454826
SN - 9781467356558
T3 - Proceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS)
SP - 869
EP - 872
BT - IEEE 26th International Conference on Micro Electro Mechanical Systems, MEMS 2013
T2 - IEEE 26th International Conference on Micro Electro Mechanical Systems, MEMS 2013
Y2 - 20 January 2013 through 24 January 2013
ER -