Wayne L. Gellett
University of Iowa
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Publication
Featured researches published by Wayne L. Gellett.
Journal of The Electrochemical Society | 2010
Wayne L. Gellett; Joshua Schumacher; Mehmet Kesmez; David Bao Le; Shelley D. Minteer
Although biofuel cell research has progressed over the past decade, there were still problems with employing enzymes at air-breathing cathodes, because enzymes need to remain hydrated and most enzyme reactions occur in solution and not in gas phase. This research details an approach to the development of an air-breathing biocathode employing direct electron transfer. This laccase biocathode is studied in two different fuel cell configurations: a proton exchange membrane hydrogen/air fuel cell and a direct methanol fuel cell (DMFC) with an anion exchange membrane. The laccase from the Rhus vernificera biocathode with an enzyme loading of 0.224 mg/cm 2 provides fuel crossover tolerance and provides a high operational current density of 50.0 mA/cm 2 and a maximum power density of 8.5 mW/cm 2 in a 40% methanol DMFC. The laccase biocathode shows a lifetime of 290 h in a DMFC. The hydrogen/air fuel cell provides a stable current for a total of 350 discontinuous hours when operated for 8 h daily.
Archive | 2009
Wayne L. Gellett; Tracy L. Bucholz; Richard T. Zvosec; Joshua Schumacher; Robert A. Clayton; Robert P. Shirtum
Electroanalysis | 2010
Wayne L. Gellett; Mehmet Kesmez; Joshua Schumacher; Nick L. Akers; Shelley D. Minteer
Archive | 2007
Niki L. Akers; Scott A. Nelson; Wayne L. Gellett; David Trentmann; Jacob Whited; Yimin Zhu; David Bao Le; Mehmet Kesmez; Joshua Schumacher
Archive | 2009
Wayne L. Gellett; Joshua Schumacher; Tracy L. Bucholz; David Bao Le; Douglas A. Busekrus; Shelley D. Minteer; David Trentmann
Archive | 2001
Johna Leddy; Shelley D. Minteer; Wayne L. Gellett
Archive | 2003
Johna Leddy; Wayne L. Gellett; Drew Dunwoody
Archive | 2009
Wayne L. Gellett; Joshua Schumacher; Tracy L. Bucholz; David Bao Le; Douglas A. Busekrus; Shelley D. Minteer; David Trentmann
Electroanalysis | 2005
Drew Dunwoody; Murat Ünlü; Angela Wolf; Wayne L. Gellett; Johna Leddy
Archive | 2001
Johna Leddy; Shelly D. Minteer; Wayne L. Gellett