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REDOX SHIELDS SIGNED

Protection of Redox Catalysts for Cathodic Processes in Redox Matrices.

Total Cost €

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EC-Contrib. €

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Partnership

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 REDOX SHIELDS project word cloud

Explore the words cloud of the REDOX SHIELDS project. It provides you a very rough idea of what is the project "REDOX SHIELDS" about.

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Project "REDOX SHIELDS" data sheet

The following table provides information about the project.

Coordinator
RUHR-UNIVERSITAET BOCHUM 

Organization address
address: UNIVERSITAETSSTRASSE 150
city: BOCHUM
postcode: 44801
website: www.rub.de

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country Germany [DE]
 Total cost 1˙483˙092 €
 EC max contribution 1˙483˙092 € (100%)
 Programme 1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
 Code Call ERC-2016-STG
 Funding Scheme ERC-STG
 Starting year 2017
 Duration (year-month-day) from 2017-03-01   to  2022-02-28

 Partnership

Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    RUHR-UNIVERSITAET BOCHUM DE (BOCHUM) coordinator 1˙483˙092.00

Map

 Project objective

Biological or molecular catalysts built from Earth-abundant elements are envisioned as economically viable alternatives to the scarce noble metals that are currently used in renewable energy conversion. However, their fragility and O2 sensitivity have been obstacles to their adoption in industry. We have recently proposed O2 quenching matrices for protecting intrinsically O2-sensitive catalysts for use in anodic (oxidative) processes. We have demonstrated that even hydrogenases, the highly sensitive metalloenzymes that oxidize H2, can be used under the harsh conditions encountered in operating fuel cells. However, attempts to reverse the concept for the protection of cathodic (reductive) processes, such as H2 evolution, have been unsuccessful so far. In this case, the electrode generates the reducing agents in the form of electrons, which are needed for both H2 generation and reductive O2 quenching. The competition between the two reactions results in insufficient protection from O2 and deactivation of the catalyst. The objective is to design an alternative electron pathway that relies on H2 as a charge carrier to efficiently shuttle the reductive force to the matrix boundaries and quench the incoming O2. We will develop novel electron mediators with dual functionalities to enable the reversible H2/H interconversion and to achieve the complete reduction of O2 to water. We will focus on organic systems, as well as metal complexes based on Earth-abundant elements with tunable ligand spheres, to adjust their redox potentials for the desired direction of the electron flow and toward fast O2 reduction kinetics. The synthetic efforts will be supported by electrochemical modelling to predict the required properties of the redox matrix for efficient protection. After establishing the protection principle, we will demonstrate its practical use for implementing sensitive bio-catalysts for electrochemical H2 evolution under conditions relevant to energy conversion processes.

 Deliverables

List of deliverables.
Data Management Plan Open Research Data Pilot 2020-02-12 11:48:56

Take a look to the deliverables list in detail:  detailed list of REDOX SHIELDS deliverables.

 Publications

year authors and title journal last update
List of publications.
2017 Adrian Ruff, Julian Szczesny, Sónia Zacarias, Inês A. C. Pereira, Nicolas Plumeré, Wolfgang Schuhmann
Protection and Reactivation of the [NiFeSe] Hydrogenase from Desulfovibrio vulgaris Hildenborough under Oxidative Conditions
published pages: 964-968, ISSN: 2380-8195, DOI: 10.1021/acsenergylett.7b00167
ACS Energy Letters 2/5 2020-02-13
2019 Huaiguang Li, Darren Buesen, Sébastien Dementin, Christophe Léger, Vincent Fourmond, Nicolas Plumeré
Complete Protection of O 2 -Sensitive Catalysts in Thin Films
published pages: 16734-16742, ISSN: 0002-7863, DOI: 10.1021/jacs.9b06790
Journal of the American Chemical Society 141/42 2020-02-04
2018 Huaiguang Li, Darren Buesen, Rhodri Williams, Joerg Henig, Stefanie Stapf, Kallol Mukherjee, Erik Freier, Wolfgang Lubitz, Martin Winkler, Thomas Happe, Nicolas Plumeré
Preventing the coffee-ring effect and aggregate sedimentation by in situ gelation of monodisperse materials
published pages: 7596-7605, ISSN: 2041-6520, DOI: 10.1039/c8sc03302a
Chemical Science 9/39 2020-01-14
2019 D. Buesen, T. Hoefer, H. Zhang, N. Plumeré
A kinetic model for redox-active film based biophotoelectrodes
published pages: 39-53, ISSN: 1359-6640, DOI: 10.1039/c8fd00168e
Faraday Discussions 215 2020-01-14
2017 Adrian Ruff, Julian Szczesny, Sónia Zacarias, Inês A. C. Pereira, Nicolas Plumeré, Wolfgang Schuhmann
Protection and Reactivation of the [NiFeSe] Hydrogenase from Desulfovibrio vulgaris Hildenborough under Oxidative Conditions
published pages: 964-968, ISSN: 2380-8195, DOI: 10.1021/acsenergylett.7b00167
ACS Energy Letters 2/5 2019-06-13
2018 Alaa A. Oughli, Adrian Ruff, Nilusha Priyadarshani Boralugodage, Patricia Rodríguez-Maciá, Nicolas Plumeré, Wolfgang Lubitz, Wendy J. Shaw, Wolfgang Schuhmann, Olaf Rüdiger
Dual properties of a hydrogen oxidation Ni-catalyst entrapped within a polymer promote self-defense against oxygen
published pages: , ISSN: 2041-1723, DOI: 10.1038/s41467-018-03011-7
Nature Communications 9/1 2019-05-08

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