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Hydrogen production at high Faradaic efficiency by a bio-electrode based on TiO2 adsorption of a new [FeFe]-hydrogenase from Clostridium perfringens

Morra, Simone; Valetti, Francesca; Sarasso, Veronica; Castrignanò, Silvia; Sadeghi, Sheila J.; Gilardi, Gianfranco

Hydrogen production at high Faradaic efficiency by a bio-electrode based on TiO2 adsorption of a new [FeFe]-hydrogenase from Clostridium perfringens Thumbnail


Authors

Profile image of SIMONE MORRA

Dr SIMONE MORRA SIMONE.MORRA@NOTTINGHAM.AC.UK
ASSISTANT PROFESSOR IN CHEMICAL &ENVIRONMENTAL ENGINEERING

Francesca Valetti

Veronica Sarasso

Silvia Castrignanò

Sheila J. Sadeghi

Gianfranco Gilardi



Abstract

© 2015 Elsevier B.V. The [FeFe]-hydrogenase CpHydA from Clostridium perfringens was immobilized by adsorption on anatase TiO2 electrodes for clean hydrogen production. The immobilized enzyme proved to perform direct electron transfer to and from the electrode surface and catalyses both H2 oxidation (H2 uptake) and H2 production (H2 evolution) with a current density for H2 evolution of about 2mAcm-1. The TiO2/CpHydA bioelectrode remained active for several days upon storage and when a reducing potential was set, H2 evolution occurred with a mean Faradaic efficiency of 98%. The high turnover frequency of H2 production and the tight coupling of electron transfer, resulting in a Faradaic efficiency close to 100%, support the exploitation of the novel TiO2/CpHydA stationary electrode as a powerful device for H2 production.

Citation

Morra, S., Valetti, F., Sarasso, V., Castrignanò, S., Sadeghi, S. J., & Gilardi, G. (2015). Hydrogen production at high Faradaic efficiency by a bio-electrode based on TiO2 adsorption of a new [FeFe]-hydrogenase from Clostridium perfringens. Bioelectrochemistry, 106, 258-262. https://doi.org/10.1016/j.bioelechem.2015.08.001

Journal Article Type Article
Acceptance Date Aug 7, 2015
Online Publication Date Aug 11, 2015
Publication Date 2015-12
Deposit Date Jan 31, 2020
Publicly Available Date Feb 11, 2020
Journal Bioelectrochemistry
Print ISSN 1567-5394
Electronic ISSN 1878-562X
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 106
Pages 258-262
DOI https://doi.org/10.1016/j.bioelechem.2015.08.001
Public URL https://nottingham-repository.worktribe.com/output/3841456
Publisher URL https://www.sciencedirect.com/science/article/abs/pii/S1567539415300177?via%3Dihub
Additional Information This article is maintained by: Elsevier; Article Title: Hydrogen production at high Faradaic efficiency by a bio-electrode based on TiO2 adsorption of a new [FeFe]-hydrogenase from Clostridium perfringens; Journal Title: Bioelectrochemistry; CrossRef DOI link to publisher maintained version: https://doi.org/10.1016/j.bioelechem.2015.08.001; Content Type: article; Copyright: Copyright © 2015 Elsevier B.V. All rights reserved.

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