Carbon Fiber Anode of Biofuel Cell with Immobilized Bacteria and Membrane Fractions

— Four types of carbon fiber materials (CFMs) obtained by electrospinning polyacrylonitrile solutions are considered. The CFMs intertwine with cells of Gluconobacter oxydans or with their membrane fractions (MFs). Bioelectrochemical characteristics of the electrodes (chrono- and voltamperometric, as...

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Bibliographic Details
Published in:Nanotechnologies in Russia 2018-09, Vol.13 (9-10), p.531-538
Main Authors: Plekhanova, Yu. V., Tarasov, S. E., Bykov, A. G., Prisyazhnaya, N. V., Tenchurin, T. Kh, Chvalun, S. N., Orekhov, A. S., Shepelev, A. D., Gotovtsev, P. M., Reshetilov, A. N.
Format: Article
Language:English
Subjects:
Anodes
Biochemical fuel cells
Biodiesel fuels
Biomass
Biosensors
Carbon fiber reinforced plastics
Carbon fibers
Charge transfer
Chemistry and Materials Science
Electrodes
Ethanol
Fuels
Industrial and Production Engineering
Machines
Manufacturing
Materials Science
Microorganisms
Nanobiology
Nanotechnology
Processes
Proteins
Substrates
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Summary:— Four types of carbon fiber materials (CFMs) obtained by electrospinning polyacrylonitrile solutions are considered. The CFMs intertwine with cells of Gluconobacter oxydans or with their membrane fractions (MFs). Bioelectrochemical characteristics of the electrodes (chrono- and voltamperometric, as well as impedance spectra) are studied. Electrodes are considered a model of the anode of the microbial biofuel cell (MFC). Ethyl alcohol is the oxidized substrate. MALDI-TOF MS demonstrates that MFs retain the protein structure of whole cells and therefore can be used as analogues of whole cells. It is shown that the MFC based on carbon fiber material obtained after 30-min treatment at 1000°C has the highest power and stability. When MFs are used as a biocatalyst, nonmediated charge transfer is observed for all studied CFMs. These results can be successfully used for the design of biosensors and MFCs.
ISSN:1995-0780
1995-0799
DOI:10.1134/S1995078018050117