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Electrochemical Reduction of Carbon Dioxide to Methanol by Direct Injection of Electrons into Immobilized Enzymes on a Modified Electrode

We present results for direct bio‐electrocatalytic reduction of CO(2) to C(1) products using electrodes with immobilized enzymes. Enzymatic reduction reactions are well known from biological systems where CO(2) is selectively reduced to formate, formaldehyde, or methanol at room temperature and ambi...

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Autores principales: Schlager, Stefanie, Dumitru, Liviu Mihai, Haberbauer, Marianne, Fuchsbauer, Anita, Neugebauer, Helmut, Hiemetsberger, Daniela, Wagner, Annika, Portenkirchner, Engelbert, Sariciftci, Niyazi Serdar
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5067720/
https://www.ncbi.nlm.nih.gov/pubmed/26890322
http://dx.doi.org/10.1002/cssc.201501496
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author Schlager, Stefanie
Dumitru, Liviu Mihai
Haberbauer, Marianne
Fuchsbauer, Anita
Neugebauer, Helmut
Hiemetsberger, Daniela
Wagner, Annika
Portenkirchner, Engelbert
Sariciftci, Niyazi Serdar
author_facet Schlager, Stefanie
Dumitru, Liviu Mihai
Haberbauer, Marianne
Fuchsbauer, Anita
Neugebauer, Helmut
Hiemetsberger, Daniela
Wagner, Annika
Portenkirchner, Engelbert
Sariciftci, Niyazi Serdar
author_sort Schlager, Stefanie
collection PubMed
description We present results for direct bio‐electrocatalytic reduction of CO(2) to C(1) products using electrodes with immobilized enzymes. Enzymatic reduction reactions are well known from biological systems where CO(2) is selectively reduced to formate, formaldehyde, or methanol at room temperature and ambient pressure. In the past, the use of such enzymatic reductions for CO(2) was limited due to the necessity of a sacrificial co‐enzyme, such as nicotinamide adenine dinucleotide (NADH), to supply electrons and the hydrogen equivalent. The method reported here in this paper operates without the co‐enzyme NADH by directly injecting electrons from electrodes into immobilized enzymes. We demonstrate the immobilization of formate, formaldehyde, and alcohol dehydrogenases on one‐and‐the‐same electrode for direct CO(2) reduction. Carbon felt is used as working electrode material. An alginate–silicate hybrid gel matrix is used for the immobilization of the enzymes on the electrode. Generation of methanol is observed for the six‐electron reduction with Faradaic efficiencies of around 10 %. This method of immobilization of enzymes on electrodes offers the opportunity for electrochemical application of enzymatic electrodes to many reactions in which a substitution of the expensive sacrificial co‐enzyme NADH is desired.
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spelling pubmed-50677202016-11-01 Electrochemical Reduction of Carbon Dioxide to Methanol by Direct Injection of Electrons into Immobilized Enzymes on a Modified Electrode Schlager, Stefanie Dumitru, Liviu Mihai Haberbauer, Marianne Fuchsbauer, Anita Neugebauer, Helmut Hiemetsberger, Daniela Wagner, Annika Portenkirchner, Engelbert Sariciftci, Niyazi Serdar ChemSusChem Full Papers We present results for direct bio‐electrocatalytic reduction of CO(2) to C(1) products using electrodes with immobilized enzymes. Enzymatic reduction reactions are well known from biological systems where CO(2) is selectively reduced to formate, formaldehyde, or methanol at room temperature and ambient pressure. In the past, the use of such enzymatic reductions for CO(2) was limited due to the necessity of a sacrificial co‐enzyme, such as nicotinamide adenine dinucleotide (NADH), to supply electrons and the hydrogen equivalent. The method reported here in this paper operates without the co‐enzyme NADH by directly injecting electrons from electrodes into immobilized enzymes. We demonstrate the immobilization of formate, formaldehyde, and alcohol dehydrogenases on one‐and‐the‐same electrode for direct CO(2) reduction. Carbon felt is used as working electrode material. An alginate–silicate hybrid gel matrix is used for the immobilization of the enzymes on the electrode. Generation of methanol is observed for the six‐electron reduction with Faradaic efficiencies of around 10 %. This method of immobilization of enzymes on electrodes offers the opportunity for electrochemical application of enzymatic electrodes to many reactions in which a substitution of the expensive sacrificial co‐enzyme NADH is desired. John Wiley and Sons Inc. 2016-02-17 2016-03-21 /pmc/articles/PMC5067720/ /pubmed/26890322 http://dx.doi.org/10.1002/cssc.201501496 Text en CC-BY-NC-ND © 2016 The Authors. Published by Wiley-VCH Verlag GmbH & Co. KGaA. This is an open access article under the terms of the Creative Commons Attribution‐NonCommercial‐NoDerivs (http://creativecommons.org/licenses/by-nc-nd/4.0/) License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non‐commercial and no modifications or adaptations are made.
spellingShingle Full Papers
Schlager, Stefanie
Dumitru, Liviu Mihai
Haberbauer, Marianne
Fuchsbauer, Anita
Neugebauer, Helmut
Hiemetsberger, Daniela
Wagner, Annika
Portenkirchner, Engelbert
Sariciftci, Niyazi Serdar
Electrochemical Reduction of Carbon Dioxide to Methanol by Direct Injection of Electrons into Immobilized Enzymes on a Modified Electrode
title Electrochemical Reduction of Carbon Dioxide to Methanol by Direct Injection of Electrons into Immobilized Enzymes on a Modified Electrode
title_full Electrochemical Reduction of Carbon Dioxide to Methanol by Direct Injection of Electrons into Immobilized Enzymes on a Modified Electrode
title_fullStr Electrochemical Reduction of Carbon Dioxide to Methanol by Direct Injection of Electrons into Immobilized Enzymes on a Modified Electrode
title_full_unstemmed Electrochemical Reduction of Carbon Dioxide to Methanol by Direct Injection of Electrons into Immobilized Enzymes on a Modified Electrode
title_short Electrochemical Reduction of Carbon Dioxide to Methanol by Direct Injection of Electrons into Immobilized Enzymes on a Modified Electrode
title_sort electrochemical reduction of carbon dioxide to methanol by direct injection of electrons into immobilized enzymes on a modified electrode
topic Full Papers
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5067720/
https://www.ncbi.nlm.nih.gov/pubmed/26890322
http://dx.doi.org/10.1002/cssc.201501496
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