Electrocatalysis by Hydrogenases: Lessons for Building Bio-Inspired Devices

A number of redox enzymes function as excellent electrocatalysts when attached to electrodes or conductor/semi-conductor surfaces. A particular focus of this review is on hydrogenases, enzymes which use a di-iron or nickel-iron center to interconvert 2H+ and H2 at extremely high turnover frequencies...

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Main Authors: McPherson, I, Vincent, K
Format: Journal article
Language:English
Published: 2014
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author McPherson, I
Vincent, K
author_facet McPherson, I
Vincent, K
author_sort McPherson, I
collection OXFORD
description A number of redox enzymes function as excellent electrocatalysts when attached to electrodes or conductor/semi-conductor surfaces. A particular focus of this review is on hydrogenases, enzymes which use a di-iron or nickel-iron center to interconvert 2H+ and H2 at extremely high turnover frequencies, although the concepts we highlight apply to a wider range of redox enzymes. Taking hydrogenases as our main case study, we examine how a detailed electrochemical understanding of the electrocatalytic behaviour of an enzyme can inform the development of devices in which the enzyme exchanges electrons directly with a range of inorganic materials, including graphite electrodes and particles, semi-conductor electrodes and quantum dots. We review recent developments in composite enzyme-inorganic catalysts, some of the biological and materials challenges in building devices based on enzymes, and the future opportunities for devices based on biological catalysts, including fuel cells, light-driven fuel production and coupled catalysis for chemical synthesis. © 2014 Sociedade Brasileira de Quimica.
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spelling oxford-uuid:3b4284f3-2740-4676-83e4-0c383b0d9ae92022-03-26T14:06:30ZElectrocatalysis by Hydrogenases: Lessons for Building Bio-Inspired DevicesJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:3b4284f3-2740-4676-83e4-0c383b0d9ae9EnglishSymplectic Elements at Oxford2014McPherson, IVincent, KA number of redox enzymes function as excellent electrocatalysts when attached to electrodes or conductor/semi-conductor surfaces. A particular focus of this review is on hydrogenases, enzymes which use a di-iron or nickel-iron center to interconvert 2H+ and H2 at extremely high turnover frequencies, although the concepts we highlight apply to a wider range of redox enzymes. Taking hydrogenases as our main case study, we examine how a detailed electrochemical understanding of the electrocatalytic behaviour of an enzyme can inform the development of devices in which the enzyme exchanges electrons directly with a range of inorganic materials, including graphite electrodes and particles, semi-conductor electrodes and quantum dots. We review recent developments in composite enzyme-inorganic catalysts, some of the biological and materials challenges in building devices based on enzymes, and the future opportunities for devices based on biological catalysts, including fuel cells, light-driven fuel production and coupled catalysis for chemical synthesis. © 2014 Sociedade Brasileira de Quimica.
spellingShingle McPherson, I
Vincent, K
Electrocatalysis by Hydrogenases: Lessons for Building Bio-Inspired Devices
title Electrocatalysis by Hydrogenases: Lessons for Building Bio-Inspired Devices
title_full Electrocatalysis by Hydrogenases: Lessons for Building Bio-Inspired Devices
title_fullStr Electrocatalysis by Hydrogenases: Lessons for Building Bio-Inspired Devices
title_full_unstemmed Electrocatalysis by Hydrogenases: Lessons for Building Bio-Inspired Devices
title_short Electrocatalysis by Hydrogenases: Lessons for Building Bio-Inspired Devices
title_sort electrocatalysis by hydrogenases lessons for building bio inspired devices
work_keys_str_mv AT mcphersoni electrocatalysisbyhydrogenaseslessonsforbuildingbioinspireddevices
AT vincentk electrocatalysisbyhydrogenaseslessonsforbuildingbioinspireddevices