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Phys Chem Chem Phys. 2011 Apr 7;13(13):5831-9. doi: 10.1039/c0cp02254c. Epub 2011 Feb 15.

Fabrication and characterization of buckypaper-based nanostructured electrodes as a novel material for biofuel cell applications.

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  • 1Freiburg Materials Research Centre (FMF), University of Freiburg, Freiburg, Germany.


The fabrication process of buckypapers (BPs) made from stable suspensions of as-received or functionalized multi-walled carbon nanotubes (MWCNTs) with high purity (97.5 wt%, Baytubes), their characterization and their utilization towards novel biofuel cell electrode applications are reported. The BPs can vary in thickness between 1 μm and 200 μm, are mechanically robust, flexible, stable in solvents, possess high meso-porosities as well as high apparent electrical conductivities of up to 2500 S m(-1). Potentiodynamic measurements of biocathodes based on bilirubin oxidase (BOD)-decorated BPs for the oxygen reduction reaction (ORR) in neutral media (phosphate buffer solution) containing glucose indicate that BP electrodes based on functionalized MWCNTs (fBPs) perform better than BP electrodes of as-received MWCNTs and have high potential as an effective electrode material in biofuel cells and biosensors.

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