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Electrochemical fluorination of perovskite type BaFeO2.5

Clemens, Oliver and Rongeat, Carine and Reddy, M. Anji and Giehr, Andreas and Fichtner, Maximilian and Hahn, Horst (2014):
Electrochemical fluorination of perovskite type BaFeO2.5.
In: Dalton Trans., 43 (42), pp. 15771-15778. The Royal Society of Chemistry Publishing, ISSN 1477-9226,
[Article]

Abstract

Here we report on the first electrochemical fluorination exemplarily performed on perovskite type BaFeO2.5. A cell setup of the type BaFeO2.5 II La0.9Ba0.1F2.9 II MFx (with MFx being MgF2 and CeF3) was used to perform the reaction, charging the cell up to voltages of about 4 V. Formation of a compound of approximate composition BaFeO2.5F[similar]0.5 was observed, in agreement with diffraction studies of the independently performed chemically fluorinated compound using F2 gas, and also possessing a capacity which is close to the theoretical capacity of the material. This new method gives an alternative towards the use of highly reactive and toxic F2 gas, and provides potential in adjusting the chemical potential for oxidative chemical fluorinations.

Item Type: Article
Erschienen: 2014
Creators: Clemens, Oliver and Rongeat, Carine and Reddy, M. Anji and Giehr, Andreas and Fichtner, Maximilian and Hahn, Horst
Title: Electrochemical fluorination of perovskite type BaFeO2.5
Language: English
Abstract:

Here we report on the first electrochemical fluorination exemplarily performed on perovskite type BaFeO2.5. A cell setup of the type BaFeO2.5 II La0.9Ba0.1F2.9 II MFx (with MFx being MgF2 and CeF3) was used to perform the reaction, charging the cell up to voltages of about 4 V. Formation of a compound of approximate composition BaFeO2.5F[similar]0.5 was observed, in agreement with diffraction studies of the independently performed chemically fluorinated compound using F2 gas, and also possessing a capacity which is close to the theoretical capacity of the material. This new method gives an alternative towards the use of highly reactive and toxic F2 gas, and provides potential in adjusting the chemical potential for oxidative chemical fluorinations.

Journal or Publication Title: Dalton Trans.
Journal volume: 43
Number: 42
Publisher: The Royal Society of Chemistry Publishing
Divisions: 11 Department of Materials and Earth Sciences
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences > Material Science > Fachgebiet Materialdesign durch Synthese
11 Department of Materials and Earth Sciences > Material Science > Joint Research Laboratory Nanomaterials
Date Deposited: 16 Feb 2015 13:11
Official URL: http://dx.doi.org/10.1039/c4dt02485k
Identification Number: doi:10.1039/c4dt02485k
Funders: Financial support by the State of Baden-Wurttemberg, Project house e-drive (#PHed.L.0208.01) is gratefully acknowledged., Horst Hahn appreciates the support of the State of Hesse by an equipment grant.
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