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Membrane-Less Biofu...
Membrane-Less Biofuel Cell Based on Cellobiose Dehydrogenase (Anode)/Laccase (Cathode) Wired via Specific Os-Redox Polymers
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Stoica, L. (författare)
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Dimcheva, N. (författare)
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Ackermann, Y. (författare)
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Karnicka, K. (författare)
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Guschin, D. A. (författare)
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Kulesza, P. J. (författare)
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Rogalski, J. (författare)
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Haltrich, D. (författare)
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Ludwig, R. (författare)
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- Gorton, Lo (författare)
- Lund University,Lunds universitet,Centrum för analys och syntes,Kemiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Centre for Analysis and Synthesis,Department of Chemistry,Departments at LTH,Faculty of Engineering, LTH
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Schuhmann, W. (författare)
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(creator_code:org_t)
- Wiley, 2009
- 2009
- Engelska.
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Ingår i: Fuel Cells. - : Wiley. - 1615-6854 .- 1615-6846. ; 9:1, s. 53-62
- Relaterad länk:
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http://dx.doi.org/10...
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https://lup.lub.lu.s...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- A membrane-free biofuel cell (BFC) is reported based on enzymes wired to graphite electrodes by means of Os-complex modified redox polymers. For the anode cellobiose dehydrogenase (CDH) is used as a biocatalyst whereas for the cathode a laccase was applied. This laccase is a high-potential laccase and hence able to reduce O-2 to H2O at a formal potential higher than +500 mV versus Ag/AgCl. In order to establish efficient electrochemical contact between the enzymes and graphite electrodes electrodeposition polymers containing Os-complex with specifically designed monomer compositions and formal potentials of the coordinatively bound Os-complex were synthesised and used to wire the enzymes to the electrodes. The newly designed CDH/Os-redox polymer anode was characterised at different pH values and optimised with respect to the nature of the polymer and the enzyme-to-polymer ratio. The resulting BFC was evaluated running on beta-lactose as a fuel and air/O-2 as an oxidising agent. The power output, the maximum current density and the electromotor force (E-emf) were found to be affected by the pH value, resulting in a maximum power output of 1.9 mu W cm(-2) reached at pH 4.3, a maximum current density of about 13 mu A cm(-2) at pH 3.5, and the highest E-emf approaching 600 mV at pH 4.0.
Ämnesord
- NATURVETENSKAP -- Kemi -- Analytisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Analytical Chemistry (hsv//eng)
Nyckelord
- Os-Redox Polymer
- Lactose
- Laccase
- Cellobiose Dehydrogenase
- Biofuel Cell
- Cellobiose
- Oxygen Reduction Reaction
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
Hitta via bibliotek
Till lärosätets databas
- Av författaren/redakt...
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Stoica, L.
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Dimcheva, N.
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Ackermann, Y.
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Karnicka, K.
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Guschin, D. A.
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Kulesza, P. J.
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visa fler...
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Rogalski, J.
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Haltrich, D.
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Ludwig, R.
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Gorton, Lo
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Schuhmann, W.
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visa färre...
- Om ämnet
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- NATURVETENSKAP
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NATURVETENSKAP
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och Kemi
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och Analytisk kemi
- Artiklar i publikationen
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Fuel Cells
- Av lärosätet
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Lunds universitet