Carbon nanotube based anodes in a miniaturized microbial fuel cell (MFC) towards high power density and efficiency

Hao Ren, Junseok Chae, Soonjae Pyo, Jae Ik Lee, Jongbaeg Kim, Forrest S. Gittleson, D. Andre

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

Abstract

Carbon nanotubes (CNTs) have unique physical / chemical properties including a high surface-area-to-volume ratio, high electrical/thermal conductivity, excellent electrochemical characteristics, and mechanical and chemical stability. This work utilizes CNTs in miniaturized microbial fuel cells (MFCs) to reduce the high internal resistance, one of the significant bottlenecks to improving the power density of the MFC. Three types of CNT electrodes, VACNT (Vertically Aligned Carbon Nano-Tube), RACNT (Randomly Aligned Carbon Nano-Tube), and LBL (Layer-By-Layer) CNT, were evaluated as anodes for miniaturized MFCs, demonstrating biocompatibility, high power density and efficiency. Areal and volumetric power densities of 113 μW/cm2 and 4.52 mW/cm3, respectively, are presented; the highest ever reported among all miniaturized MFCs with CNT anodes to date more than 11.5 times the previous record. Additionally, a coulombic efficiency (CE) of 60%-80% is achieved, significantly higher than existing miniaturized MFCs. High power density and CE may support the miniaturized MFC as a strong candidate in sub-100 μW applications.

Original languageEnglish (US)
Title of host publicationIEEE International Conference on Nano/Molecular Medicine and Engineering, NANOMED
Pages15-20
Number of pages6
DOIs
StatePublished - 2012
Event6th IEEE International Conference on Nano/Molecular Medicine and Engineering, NANOMED 2012 - Bangkok, Thailand
Duration: Nov 4 2012Nov 7 2012

Other

Other6th IEEE International Conference on Nano/Molecular Medicine and Engineering, NANOMED 2012
CountryThailand
CityBangkok
Period11/4/1211/7/12

Fingerprint

Bioelectric Energy Sources
Microbial fuel cells
Carbon Nanotubes
Carbon nanotubes
Anodes
Electrodes
Carbon
Thermal Conductivity
Electric Conductivity
Mechanical stability
Chemical stability
Biocompatibility
Chemical properties
Thermal conductivity

Keywords

  • Biocompatibility
  • Carbon nanotube (CNT)
  • Coulombic efficiency (CE)
  • Internal resistance
  • Miniaturized Microbial fuel cell (MFC)

ASJC Scopus subject areas

  • Molecular Medicine
  • Biomedical Engineering
  • Microbiology (medical)

Cite this

Ren, H., Chae, J., Pyo, S., Lee, J. I., Kim, J., Gittleson, F. S., & Andre, D. (2012). Carbon nanotube based anodes in a miniaturized microbial fuel cell (MFC) towards high power density and efficiency. In IEEE International Conference on Nano/Molecular Medicine and Engineering, NANOMED (pp. 15-20). [6509130] https://doi.org/10.1109/NANOMED.2012.6509130

Carbon nanotube based anodes in a miniaturized microbial fuel cell (MFC) towards high power density and efficiency. / Ren, Hao; Chae, Junseok; Pyo, Soonjae; Lee, Jae Ik; Kim, Jongbaeg; Gittleson, Forrest S.; Andre, D.

IEEE International Conference on Nano/Molecular Medicine and Engineering, NANOMED. 2012. p. 15-20 6509130.

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

Ren, H, Chae, J, Pyo, S, Lee, JI, Kim, J, Gittleson, FS & Andre, D 2012, Carbon nanotube based anodes in a miniaturized microbial fuel cell (MFC) towards high power density and efficiency. in IEEE International Conference on Nano/Molecular Medicine and Engineering, NANOMED., 6509130, pp. 15-20, 6th IEEE International Conference on Nano/Molecular Medicine and Engineering, NANOMED 2012, Bangkok, Thailand, 11/4/12. https://doi.org/10.1109/NANOMED.2012.6509130
Ren H, Chae J, Pyo S, Lee JI, Kim J, Gittleson FS et al. Carbon nanotube based anodes in a miniaturized microbial fuel cell (MFC) towards high power density and efficiency. In IEEE International Conference on Nano/Molecular Medicine and Engineering, NANOMED. 2012. p. 15-20. 6509130 https://doi.org/10.1109/NANOMED.2012.6509130
Ren, Hao ; Chae, Junseok ; Pyo, Soonjae ; Lee, Jae Ik ; Kim, Jongbaeg ; Gittleson, Forrest S. ; Andre, D. / Carbon nanotube based anodes in a miniaturized microbial fuel cell (MFC) towards high power density and efficiency. IEEE International Conference on Nano/Molecular Medicine and Engineering, NANOMED. 2012. pp. 15-20
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