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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Magner, Edmond
European Commission
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (7/7 displayed)
- 2021High Energy Ball Milling and Liquid Crystal Template Method: A Successful Combination for the Preparation of Magnetic Nano-Platformscitations
- 2019Use of Polymer Coatings to Enhance the Response of Redox-Polymer-Mediated Electrodescitations
- 2017A symmetric supercapacitor/biofuel cell hybrid device based on enzyme-modified nanoporous gold:An autonomous pulse generatorcitations
- 2017Immobilization of Redox Enzymes on Nanoporous Gold Electrodes: Applications in Biofuel Cellscitations
- 2017A symmetric supercapacitor/biofuel cell hybrid device based on enzyme-modified nanoporous goldcitations
- 2017Immobilization of Redox Enzymes on Nanoporous Gold Electrodescitations
- 2016Nanoporous Gold Electrodes with Tuneable Pore Sizes for Bioelectrochemical Applicationscitations
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article
A symmetric supercapacitor/biofuel cell hybrid device based on enzyme-modified nanoporous gold
Abstract
<p>The integration of supercapacitors with enzymatic biofuel cells (BFCs) can be used to prepare hybrid devices in order to harvest significantly higher power output. In this study, a supercapacitor/biofuel cell hybrid device was prepared by the immobilisation of redox enzymes with electrodeposited poly(3,4-ethylenedioxythiophene) (PEDOT) and the redox polymer [Os(2,2′-bipyridine)<sub>2</sub>(polyvinylimidazole)<sub>10</sub>Cl]<sup>+/2+</sup>(Os(bpy)<sub>2</sub>PVI) on dealloyed nanoporous gold. The thickness of the deposition layer can be easily controlled by tuning the deposition conditions. Once charged by the internal BFC, the device can be discharged as a supercapacitor at a current density of 2 mA cm<sup>−2</sup> providing a maximum power density of 608.8 μW cm<sup>−2</sup>, an increase of a factor of 468 when compared to the power output from the BFC itself. The hybrid device exhibited good operational stability for 50 charge/discharge cycles and ca. 7 h at a discharge current density of 0.2 mA cm<sup>−2</sup>. The device could be used as a pulse generator, mimicking a cardiac pacemaker delivering pulses of 10 μA for 0.5 ms at a frequency of 0.2 Hz.</p>