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Molybdenum-Dependent Formate Dehydrogenase for Formate Bioelectrocatalysis in a Formate/O-2 Enzymatic Fuel Cell

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dc.creator Sahin, Selmihan
dc.creator CAI, Rong
dc.creator Milton, Ross D.
dc.creator ABDELLAOUI, Sofiene
dc.creator Macazo, Florika C.
dc.creator Minteer, Shelley D.
dc.date 2017-12-31T21:00:00Z
dc.date.accessioned 2020-10-06T09:18:00Z
dc.date.available 2020-10-06T09:18:00Z
dc.identifier 0361e397-9574-45a9-9938-01cbdeb3701c
dc.identifier 10.1149/2.0431803jes
dc.identifier https://avesis.sdu.edu.tr/publication/details/0361e397-9574-45a9-9938-01cbdeb3701c/oai
dc.identifier.uri http://acikerisim.sdu.edu.tr/xmlui/handle/123456789/52177
dc.description Formate/formic acid has been an intriguing fuel for fuel cells and biofuel cells over the last two decades. The common challenge with formate/formic acid biofuel cells has been the use of NAD-dependent formate dehydrogenase, which requires a diffusive cofactor and problematic cofactor regeneration systems. In this paper, we explore the bioelectro-oxidation of formate using Mo-containing formate dehydrogenase from E. coli (Mo-FDH) for development of a new HCOO-/O-2 enzymatic fuel cell (EFC). Mo-FDH was coupled with a benzylpropylviologen-based linear polyethylenimine (BPV-LPEI) redox polymer to fabricate a formate bioanode and laccase incorporated with anthracene-modified multi-walled carbon nanotubes (Ac-MWCNTs) to promote direct electron transfer was used for the O-2 biocathode. The resulting Mo-FDH/laccase EFC has an open-circuit potential of 1.28 +/- 0.05 V, with corresponding maximum current and power densities of 17 +/- 7 mu A cm(-2) and 18 +/- 6 mu W cm(-2), respectively. These results correspond to the highest open circuit potential for a HCOO-/O-2 EFC. (C) The Author(s) 2018. Published by ECS.
dc.language eng
dc.rights info:eu-repo/semantics/closedAccess
dc.title Molybdenum-Dependent Formate Dehydrogenase for Formate Bioelectrocatalysis in a Formate/O-2 Enzymatic Fuel Cell
dc.type info:eu-repo/semantics/article


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