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Dive into the research topics where Wayne L. Gellett is active.

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Featured researches published by Wayne L. Gellett.


Journal of The Electrochemical Society | 2010

High Current Density Air-Breathing Laccase Biocathode

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

Process for accelerated capture of carbon dioxide

Wayne L. Gellett; Tracy L. Bucholz; Richard T. Zvosec; Joshua Schumacher; Robert A. Clayton; Robert P. Shirtum


Electroanalysis | 2010

Biofuel cells for portable power

Wayne L. Gellett; Mehmet Kesmez; Joshua Schumacher; Nick L. Akers; Shelley D. Minteer


Archive | 2007

BIOANODE AND BIOCATHODE STACK ASSEMBLIES

Niki L. Akers; Scott A. Nelson; Wayne L. Gellett; David Trentmann; Jacob Whited; Yimin Zhu; David Bao Le; Mehmet Kesmez; Joshua Schumacher


Archive | 2009

Direct alcohol anion fuel cell with biocathode

Wayne L. Gellett; Joshua Schumacher; Tracy L. Bucholz; David Bao Le; Douglas A. Busekrus; Shelley D. Minteer; David Trentmann


Archive | 2001

Coated metallic particles, methods and applications

Johna Leddy; Shelley D. Minteer; Wayne L. Gellett


Archive | 2003

Self-hydrating membrane electrode assemblies for fuel cells

Johna Leddy; Wayne L. Gellett; Drew Dunwoody


Archive | 2009

Direct alcohol fuel cell with biocathode

Wayne L. Gellett; Joshua Schumacher; Tracy L. Bucholz; David Bao Le; Douglas A. Busekrus; Shelley D. Minteer; David Trentmann


Electroanalysis | 2005

Magnet Incorporated Carbon Electrodes: Methods for Construction and Demonstration of Increased Electrochemical Flux

Drew Dunwoody; Murat Ünlü; Angela Wolf; Wayne L. Gellett; Johna Leddy


Archive | 2001

Magnetic materials, metallic particles and method of making same

Johna Leddy; Shelly D. Minteer; Wayne L. Gellett

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Johna Leddy

University of Texas at Austin

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Julie N. Renner

Case Western Reserve University

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