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  Speciation of Copper(II)-Betaine Complexes as Starting Point for Electrochemical Copper Deposition from Ionic Liquids

Richter, J., Knies, M., & Ruck, M. (2020). Speciation of Copper(II)-Betaine Complexes as Starting Point for Electrochemical Copper Deposition from Ionic Liquids. ChemistryOpen, 1-14. doi:10.1002/open.202000231.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0007-8915-7 Version Permalink: http://hdl.handle.net/21.11116/0000-0007-8938-0
Genre: Journal Article

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 Creators:
Richter, Janine1, Author
Knies, Maximilian1, Author
Ruck, Michael2, Author              
Affiliations:
1External Organizations, ou_persistent22              
2Michael Ruck, Max Planck Fellow, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863444              

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Free keywords: coordination compounds, copper, electrodeposition, Hunsdieker reaction, ionic liquids
 Abstract: The application of ionic liquids for the dissolution of metal oxides is a promising field for the development of more energy- and resource-efficient metallurgical processes. Using such solutions for the production of valuable chemicals or electrochemical metal deposition requires a detailed understanding of the chemical system and the factors influencing it. In the present work, several compounds are reported that crystallize after the dissolution of copper(II) oxide in the ionic liquid [Hbet][NTf2]. Dependent on the initial amount of chloride, the reaction temperature and the purity of the reagent, copper crystallizes in complexes with varying coordination geometries and ligands. Subsequently, the influence of these different complex species on electrochemical properties is shown. For the first time, copper is deposited from the ionic liquid [Hbet][NTf2], giving promising opportunities for more resource-efficient copper plating. The copper coatings were analyzed by SEM and EDX measurements. Furthermore, a mechanism for the decomposition of [Hbet][NTf2] in the presence of chloride is suggested and supported by experimental evidence. © 2020 The Authors. Published by Wiley-VCH GmbH

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Language(s): eng - English
 Dates: 2020-12-012020-12-01
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.1002/open.202000231
 Degree: -

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Title: ChemistryOpen
Source Genre: Journal
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Publ. Info: Weinheim : Wiley-VCH
Pages: - Volume / Issue: - Sequence Number: - Start / End Page: 1 - 14 Identifier: ISSN: 2191-1363
CoNE: https://pure.mpg.de/cone/journals/resource/2191-1363