Effect of nitrogen addition on the performance of microbial fuel cell anodes

Tomonori Saito, Maha Mehanna, Xin Wang, Roland D. Cusick, Yujie Feng, Michael A. Hickner, Bruce E. Logan

Research output: Contribution to journalArticle

Abstract

Carbon cloth anodes were modified with 4(N,N-dimethylamino)benzene diazonium tetrafluoroborate to increase nitrogen-containing functional groups at the anode surface in order to test whether the performance of microbial fuel cells (MFCs) could be improved by controllably modifying the anode surface chemistry. Anodes with the lowest extent of functionalization, based on a nitrogen/carbon ratio of 0.7 as measured by XPS, achieved the highest power density of 938mW/m2. This power density was 24% greater than an untreated anode, and similar to that obtained with an ammonia gas treatment previously shown to increase power. Increasing the nitrogen/carbon ratio to 3.8, however, decreased the power density to 707mW/m2. These results demonstrate that a small amount of nitrogen functionalization on the carbon cloth material is sufficient to enhance MFC performance, likely as a result of promoting bacterial adhesion to the surface without adversely affecting microbial viability or electron transfer to the surface.

LanguageEnglish (US)
Pages395-398
Number of pages4
JournalBioresource Technology
Volume102
Issue number1
DOIs
StatePublished - Jan 1 2011

Fingerprint

Microbial fuel cells
fuel cell
Anodes
Nitrogen
Carbon
nitrogen
carbon
adhesion
X-ray spectroscopy
functional group
benzene
Benzene
viability
Surface chemistry
Ammonia
ammonia
Functional groups
electron
Adhesion
X ray photoelectron spectroscopy

Keywords

  • Anode treatment
  • Bacterial adhesion
  • Diazonium functionalization
  • Microbial fuel cell

ASJC Scopus subject areas

  • Bioengineering
  • Environmental Engineering
  • Waste Management and Disposal

Cite this

Saito, T., Mehanna, M., Wang, X., Cusick, R. D., Feng, Y., Hickner, M. A., & Logan, B. E. (2011). Effect of nitrogen addition on the performance of microbial fuel cell anodes. DOI: 10.1016/j.biortech.2010.05.063

Effect of nitrogen addition on the performance of microbial fuel cell anodes. / Saito, Tomonori; Mehanna, Maha; Wang, Xin; Cusick, Roland D.; Feng, Yujie; Hickner, Michael A.; Logan, Bruce E.

In: Bioresource Technology, Vol. 102, No. 1, 01.01.2011, p. 395-398.

Research output: Contribution to journalArticle

Saito, T, Mehanna, M, Wang, X, Cusick, RD, Feng, Y, Hickner, MA & Logan, BE 2011, 'Effect of nitrogen addition on the performance of microbial fuel cell anodes' Bioresource Technology, vol. 102, no. 1, pp. 395-398. DOI: 10.1016/j.biortech.2010.05.063
Saito T, Mehanna M, Wang X, Cusick RD, Feng Y, Hickner MA et al. Effect of nitrogen addition on the performance of microbial fuel cell anodes. Bioresource Technology. 2011 Jan 1;102(1):395-398. Available from, DOI: 10.1016/j.biortech.2010.05.063
Saito, Tomonori ; Mehanna, Maha ; Wang, Xin ; Cusick, Roland D. ; Feng, Yujie ; Hickner, Michael A. ; Logan, Bruce E./ Effect of nitrogen addition on the performance of microbial fuel cell anodes. In: Bioresource Technology. 2011 ; Vol. 102, No. 1. pp. 395-398
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