Journal
ELECTROCHEMISTRY COMMUNICATIONS
Volume 60, Issue -, Pages 216-220Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.elecom.2015.09.014
Keywords
Enzymatic H-2/O-2 fuel cell; Wireless transmission; Hydrogenase; Bilirubin oxidase; Direct electron transfer
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Funding
- ANR BioMe CAROUCELL
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We report the first example of an H-2/O-2 enzymatic fuel cell able to power a wireless transmission system. Oxygen-tolerant hydrogenase from Aquifex aeolicus and bilirubin oxidase from Myrothecium verrucaria were incorporated from diluted solutions in carbon felt-based material, allowing mediatorless catalytic currents more than 1 mA to be reached. The enzymatic fuel cell open circuit voltage was 1.12 V, and short circuit current was 767 mu A. It delivered a maximum power of 410 mu W, sufficient to power the electronic device that measured in real time the anodic/cathodic compartments and room temperatures, the voltage of the capacitor and voltage output of the enzymatic fuel cell itself. Notably, data were sent every 25 s during 7 hours of continuous operation which constitute the highest performances ever reported for a realistic environmental application fully powered with an enzymatic fuel cell. (C) 2015 Elsevier B.V. All rights reserved.
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