Laminar flow-based biofuel cells: Independent tailoring of the pH at the cathode and anode to enhance the activity and stability of both enzymes

P. J.A. Kenis, Eric R. Choban, Lajos Gancs, Ranga S. Jayashree, Michael Mitchell, Jacob S. Spendelow, Seong Kee Yoon

Research output: Contribution to journalConference article

Abstract

A major challenge in improving the performance of enzymatic biofuel cells has been the need to operate at a certain compromise pH that may be optimal for the activity and stability of one enzyme, but sub optimal for the other. Laminar flow-based fuel cells that enable independent tailoring of the conditions, e.g., pH at the cathode and anode, have been developed. Aqueous fuel and oxidant containing streams are brought together in a common microfluidic channel while flowing laminarly in parallel over electrodes that line opposing sidewalls of the microfluidic channel. A discussion on how these membraneless fuel cells allow for the respective biocatalyst to be exposed to a pH that optimizes their activity as well as stability, thereby improving overall performance and longevity of enzymatic biofuel cells is presented. This is an abstract of a paper presented at the 230th ACS National Meeting (Washington, DC 8/28/2005-9/1/2005).

Original languageEnglish (US)
JournalACS National Meeting Book of Abstracts
Volume230
StatePublished - Dec 1 2005
Event230th ACS National Meeting - Washington, DC, United States
Duration: Aug 28 2005Sep 1 2005

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

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