Theoretical Graetz-Damkohler modeling of an air-breathing microfluidic fuel cell

Jin Xuan*, Huizhi Wang, Dennis Y. C. Leung, Michael K. H. Leung, Hong Xu, Li Zhang, Yang Shen

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

20 Citations (Scopus)


This paper reports the first theoretical modeling study of air-breathing microfluidic fuel cells (MFCs). The model is based on a semi-empirical Graetz-Damkohler (Gz-Da) analysis. The theoretical formulas derived clearly demonstrate the effects of the MFC design and operational parameters on the electrochemical activities of MFCs in quantitative detail. The modeling analysis shows that the electrode kinetics have significant effects on the trade-off relationship between the fuel utilization and current density. Moreover, the analysis reveals that the co-laminar flow of MFCs limits the fuel utilization considerably. (C) 2012 Elsevier B.V. All rights reserved.

Original languageEnglish
Pages (from-to)1-5
Number of pages5
JournalJournal of Power Sources
Early online date31 Dec 2012
Publication statusPublished - Jun 2013


  • Microfluidic fuel cell
  • Analytical model
  • Fuel utilization
  • Damkohler number
  • Graetz number


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