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Cu4Energy SIGNED

Biomimetic Copper Complexes for Energy Conversion Reactions

Total Cost €

EC-Contrib. €

Partnership

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Outcomes and
results

Cu4Energy project word cloud

Explore the words cloud of the Cu4Energy project. It provides you a very rough idea of what is the project "Cu4Energy" about.

force limiting significantly functional perform proton laccase biased cycle concerted electron equilibria combined accessible fundamental wo scission close natural model water catalysts solar envisioned oxygen driving enzymatic coupled experiments designed oxidation copper fast small fuels operates linked surface energy shuttles molecular catalytic overpotential electrochemical rates enzyme bond active artificial principles reactions catalyst computational thermodynamic transfer enhanced improvements structure consume redox ideal reaction cleavage rate

Project "Cu4Energy" data sheet

The following table provides information about the project.

Coordinator	UNIVERSITEIT LEIDEN Organization address address: RAPENBURG 70 city: LEIDEN postcode: 2311 EZ website: www.universiteitleiden.nl 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	Netherlands [NL]
Total cost	1˙500˙000 €
EC max contribution	1˙500˙000 € (100%)
Programme	1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
Code Call	ERC-2014-STG
Funding Scheme	ERC-STG
Starting year	2015
Duration (year-month-day)	from 2015-05-01 to 2020-04-30

Partnership

Take a look of project's partnership.

#	participants	country	role	EC contrib. [€]
1	UNIVERSITEIT LEIDEN UNIVERSITEIT LEIDEN Organization address address: RAPENBURG 70 city: LEIDEN postcode: 2311 EZ website: www.universiteitleiden.nl contact info title: n.a. name: n.a. surname: n.a. function: n.a. email: n.a. telephone: n.a. fax: n.a.	NL (LEIDEN)	coordinator	1˙500˙000.00

Map

Project objective

Water oxidation (WO) and oxygen reduction (OR) are crucial reactions to produce and to consume solar fuels. It is important that WO and OR occur with very high catalytic rates with only a very small thermodynamic driving force (i.e. a small overpotential). In these terms, natural catalysts perform significantly better than the artificial systems. Especially the copper enzyme Laccase operates fast at a low overpotential. In principle one could use the same design principles used in the enzymatic systems to produce artificial catalysts for OR and WO. It is envisioned that for the most ideal OR and WO catalysts:

1. All redox reactions within the catalytic cycle should occur as close as possible to the thermodynamic potential where OR and WO become accessible.

2. Equilibria that are not coupled to redox reactions need to be biased for product formation.

3. Proton shuttles are necessary to manage proton transfer concerted with electron-transfer and electron-transfer coupled to O–O bond cleavage or O–O bond formation.

In this proposal molecular copper catalysts for OR and WO are studied by means of a combined electrochemical and computational approach, taking in account the design principles above. Experiments will be carried out wherein the structure of the catalyst is linked to the observed catalytic activity and the potential energy surface of the catalytic cycle. The proposal is in particular focused on the rate-determining step of the catalytic reaction, as improvements here will directly lead to enhanced catalytic rates. A functional model system of Laccase will be designed to study the rate limiting proton-and-electron-coupled O–O bond scission reaction, which is the rate limiting step in OR by Laccase. The aim of the proposal is to significantly increase of fundamental understanding of the design principles for molecular OR and WO catalysts and to deliver new and very active molecular copper catalysts for OR and WO at the end of the project.

Publications

List of publications.
year	authors and title	journal	last update
2019	Michiel Langerman, Dennis G. H. Hetterscheid Fast Oxygen Reduction Catalyzed by a Copper(II) Tris(2-pyridylmethyl)amine Complex through a Stepwise Mechanism published pages: 12974-12978, ISSN: 1433-7851, DOI: 10.1002/anie.201904075	Angewandte Chemie International Edition 58/37	2020-01-28
2018	Bas van Dijk, Jan P. Hofmann, Dennis G. H. Hetterscheid Pinpointing the active species of the Cu(DAT) catalyzed oxygen reduction reaction published pages: 19625-19634, ISSN: 1463-9076, DOI: 10.1039/c8cp03419b	Physical Chemistry Chemical Physics 20/29	2019-12-16
2017	Dennis G. H. Hetterscheid In operando studies on the electrochemical oxidation of water mediated by molecular catalysts published pages: 10622-10631, ISSN: 1359-7345, DOI: 10.1039/C7CC04944G	Chemical Communications 53/77	2019-05-28

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