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Sugar-Powered Fuel Cells. Andrew Karman, 2011 Surf-it fellow Gobind Bisht , graduate student Dr. Marc Madou , Faculty Mentor Dr. LAWRENCE KULINSKY, Faculty Mentor . Background. Biological MicroElectroMechanical Systems Implantable electrically-operated devices: Pacemakers

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Sugar powered fuel cells

Sugar-Powered Fuel Cells

Andrew Karman, 2011 Surf-it fellow

GobindBisht, graduate student Dr. Marc Madou, Faculty Mentor

Dr. LAWRENCE KULINSKY, Faculty Mentor


Background
Background

  • Biological MicroElectroMechanical Systems

    • Implantable electrically-operated devices:

      • Pacemakers

      • Defibrillators

      • Insulin pumps

      • Drug delivery systems

    • Power supplies:

      • Primary (non-rechargeable) batteries

      • Secondary batteries

        • Serious drawbacks in terms of safety, reliability, and scalability


Objective
Objective

  • Development of biofuel cell:

    • Device to mimic nature’s method of energy generation

      • Conversion of biochemical energy into electrical energy

    • Anodic/Cathodic enzyme

      • Glucose oxidase / Laccase (0.78V)


Cmems architecture
CMEMS Architecture

  • Attractive features of carbon in electrochemical application

    • Wide electrochemical potential window

    • Good electrical conductivity

    • Chemical and mechanical stability

    • Low cost




Challenges future outlook
Challenges & Future Outlook

  • Problems to Overcome:

    • 1) Low cell voltages & power densities

    • 2) Adsorption of interfering species

    • 3) Electrical contact between redox enzymes & electrode

  • Prototype in Development:

    • Preliminary results appear promising!



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