Mediator-Free Bioelectrocatalytic Oxidation of Ethanol on an Electrode from Thermally Expanded Graphite Modified byGluconobacter oxydansMembrane Fractions

Autor:	Vladimir Kolesov, Anna E. Kitova, Alexander I. Yaropolov, Anatoly N. Reshetilov
Rok vydání:	2015
Předmět:	Electrocatalyst Electron transport chain Analytical Chemistry Chitosan chemistry.chemical_compound Membrane chemistry Chemical engineering Desorption Electrode Electrochemistry Organic chemistry Graphite Gluconobacter oxydans
Zdroj:	Electroanalysis. 27:1443-1448
ISSN:	1040-0397
DOI:	10.1002/elan.201400610
Popis:	We studied bioelectrocatalytic oxidation of ethanol with membrane fractions of Gluconobacter oxydans VKM B-1280 bacterial cells participating as an electrocatalyst. Material of the electrode was graphene-like thermally expanded graphite of a high surface area and low resistivity. Membrane fractions were immobilized on the electrode surface by application in chitosan gel to prevent desorption of the biocatalyst. The bioelectrode characteristics were studied by the voltammetric and chronopotentiometric methods. It was shown that electrooxidation of ethanol on the bioanode could proceed both in the mode of direct mediator-free electrocatalysis and by the mediator mechanism.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::0b1c0ccf5ae273613a0e97183cfdddaf https://doi.org/10.1002/elan.201400610 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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