Copper(II) defect-cubane water oxidation electrocatalysts: from molecular tetramers to oxidic nanostructures

Devi Prasad Adiyeri Saseendran; Jörg W. A. Fischer; Lea Müller; Daniel F. Abbott; Victor Mougel; Gunnar Jeschke; Carlos A. Triana; Greta R. Patzke

doi:10.1039/D3CC01005H

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Copper(ii) defect-cubane water oxidation electrocatalysts: from molecular tetramers to oxidic nanostructures†

Devi Prasad Adiyeri Saseendran,

^a Jörg W. A. Fischer,

^b Lea Müller,^b Daniel F. Abbott,

^b Victor Mougel,

^b Gunnar Jeschke,

^b Carlos A. Triana

^a and Greta R. Patzke

*^a

Author affiliations

* Corresponding authors

^a Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
E-mail: greta.patzke@chem.uzh.ch

^b Department of Chemistry and Applied Biosciences, Vladimir-Prelog-Weg 1-5/10, CH-8093 Zurich, Switzerland

Abstract

We report on the synthesis and spectroscopic evidence for a sequence of structural transformations of a new defect-cubane type copper complex, [Cu₄(pyalk)₄(OAc)₄](ClO₄)(HNEt₃), which acts as a pre-catalyst for water oxidation. In situ and post-catalytic studies showed that the tetrameric complex undergoes a structural transformation into dimeric and monomeric species, induced by water molecules and carbonate anions, respectively. Further, the observed electrocatalytic water oxidation activity has been confirmed to arise from in situ-generated Cu(II) oxidic nanostructures at the electrode interface.

This article is part of the themed collection: 2023 Pioneering Investigators

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DOI: https://doi.org/10.1039/D3CC01005H
Article type: Communication
Submitted: 01 mrt 2023
Accepted: 11 apr 2023
First published: 24 apr 2023
This article is Open Access

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Chem. Commun., 2023,59, 5866-5869

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Copper(II) defect-cubane water oxidation electrocatalysts: from molecular tetramers to oxidic nanostructures

D. P. Adiyeri Saseendran, J. W. A. Fischer, L. Müller, D. F. Abbott, V. Mougel, G. Jeschke, C. A. Triana and G. R. Patzke, Chem. Commun., 2023, 59, 5866 DOI: 10.1039/D3CC01005H

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Chemical Communications

Copper(ii) defect-cubane water oxidation electrocatalysts: from molecular tetramers to oxidic nanostructures†

Abstract

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Copper(II) defect-cubane water oxidation electrocatalysts: from molecular tetramers to oxidic nanostructures

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