Vertically grown multiwalled carbon nanotube anode and nickel silicide integrated high performance microsized (1.25 μl) microbial fuel cell

Justine E. Mink, Jhonathan Prieto Rojas, Bruce E. Logan, Muhammad Mustafa Hussain

Research output: Contribution to journalArticlepeer-review

126 Scopus citations

Abstract

Microbial fuel cells (MFCs) are an environmentally friendly method for water purification and self-sustained electricity generation using microorganisms. Microsized MFCs can also be a useful power source for lab-on-a-chip and similar integrated devices. We fabricated a 1.25 μL microsized MFC containing an anode of vertically aligned, forest type multiwalled carbon nanotubes (MWCNTs) with a nickel silicide (NiSi) contact area that produced 197 mA/m 2 of current density and 392 mW/m 3 of power density. The MWCNTs increased the anode surface-to-volume ratio, which improved the ability of the microorganisms to couple and transfer electrons to the anode. The use of nickel silicide also helped to boost the output current by providing a low resistance contact area to more efficiently shuttle electrons from the anode out of the device. © 2012 American Chemical Society.
Original languageEnglish (US)
Pages (from-to)791-795
Number of pages5
JournalNano Letters
Volume12
Issue number2
DOIs
StatePublished - Jan 27 2012

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: We thank Prof. Gary Amy, Director, Water Desalination and Reuse Center (KAUST) for useful technical discussion, Miss Kelly Rader for logistic support, Water Desalination and Reuse Center (WDRC, KAUST) for lab facility, and Global Collaborative Research (GCR) of King Abdullah University of Science and Technology for providing generous financial support.

ASJC Scopus subject areas

  • Bioengineering
  • General Materials Science
  • General Chemistry
  • Mechanical Engineering
  • Condensed Matter Physics

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