Biofuel cell based on arylated carbon nanotubes

Krzysztof Stolarczyk 1Dominika Łyp 1Kamila Żelechowska 2Jan F. Biernat 3Jerzy Rogalski 4Renata Bilewicz 1

1. Warsaw University, Faculty of Chemistry, Pasteura 1, Warszawa 02-093, Poland
2. Gdansk University of Technology, Faculty of Applied Physics and Mathematics, Narutowicza St. 11-12, Gdańsk 80-233, Poland
3. Gdańsk University of Technology, Faculty of Chemistry, Narutowicza 11/12, Gdańsk 80-952, Poland
4. Maria Curie Sklodowska University, Department of Biochemistry, Pl. Sklodowskiej 3, Lublin 20-031, Poland

Abstract

Construction of an efficient electrode for a biofuel cell and hybrid devices powered by external fuel is the aim of our study. We focus on the development of an efficient cathode for the electroreduction of dioxygen using laccase and modified carbon nanotubes1,2. In our study, single-walled carbon nanotubes (SWCNTs) were covalently modified with arylated group (anthraquinone, anthracene, aniline, terphenyl, naphthalene) and used for the construction of cathodes for biocatalytic reduction of dioxygen. The nanotubes with aromatic groups casted onto the electrode increased the working surface of the electrode and enabled efficient direct electron transfer (DET) between the enzyme and the electrode. The catalytic current density, potential and stability in time were compared for all of these electrodes, and the electrode showing the best properties was tested in a hybrid cell with Zn anode and in an enzymatic fuel cell with glucose dehydrogenase based anode.

 

References

1. K. Stolarczyk, E. Nazaruk, J. Rogalski, R. Bilewicz, Electrochim. Acta  53 (2008) 3983.

2. K. Sadowska, K. Stolarczyk, J.F. Biernat, K.P. Roberts, J. Rogalski, R. Bilewicz, Bioelectrochem. 80 (2010) 73.

 

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Presentation: Poster at SMCBS'2011 International Workshop, by Krzysztof Stolarczyk
See On-line Journal of SMCBS'2011 International Workshop

Submitted: 2011-08-30 10:45
Revised:   2011-08-30 10:45