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A quasi-solid-state and self-powered biosupercapacitor based on flexible nanoporous gold electrodes
1Department of Chemical Sciences and Bernal Institute, University of Limerick, Limerick V94 T9PX, Ireland. Xinxin.xiao@ul.ie edmond.magner@ul.ie.
Chemical Communications (Cambridge, England)
|May 15, 2018
Summary
A flexible biofuel cell uses a sugar-fueled hydrogel electrolyte. This device acts as a self-powered biosupercapacitor, offering significantly enhanced power density and long-term stability for over 600 cycles.
Area of Science:
- Electrochemistry
- Materials Science
- Biotechnology
Background:
- Biofuel cells offer sustainable energy generation.
- Hydrogel electrolytes provide a quasi-solid-state platform for electrochemical devices.
- Biosupercapacitors combine energy storage and biofuel cell functionalities.
Purpose of the Study:
- To develop a flexible, quasi-solid-state biofuel cell.
- To integrate biosupercapacitor capabilities for enhanced performance.
- To evaluate the device's power density and cycling stability.
Main Methods:
- Fabrication of a flexible biofuel cell utilizing a hydrogel electrolyte.
- Preloading the hydrogel with sugar as the fuel source.
- Characterization of the device's electrochemical performance, including power density and cycle life.
Main Results:
- The device operates as a self-powered biosupercapacitor.
- Demonstrated stable pulse delivery for over 600 cycles.
- Achieved a power density more than 10 times greater than the biofuel cell alone.
Conclusions:
- The developed quasi-solid-state biofuel cell exhibits promising performance as a biosupercapacitor.
- The integrated design enhances power output and operational longevity.
- This technology presents a viable option for self-powered flexible electronic applications.
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