Electrochemical calcium extraction from 1D-Ca3Co2O6

Deyana S. Tchitchekova; Carlos Frontera; Alexandre Ponrouch; Christopher Krich; Fanny Bardé; M. Rosa Palacín

doi:10.1039/C8DT01754A

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Electrochemical calcium extraction from 1D-Ca₃Co₂O₆†

Deyana S. Tchitchekova,

^a Carlos Frontera,

*^a Alexandre Ponrouch,

^a Christopher Krich,^b Fanny Bardé

^b and M. Rosa Palacín

*^a

Author affiliations

* Corresponding authors

^a Institut de Ciència de Materials de Barcelona (ICMAB-CSIC) Campus UAB, E-08193 Bellaterra, Catalonia, Spain
E-mail: frontera@icmab.es, rosa.palacin@icmab.es

^b Toyota Motor Europe, Research & Development 2, Advanced Material Research, Battery & Fuel Cell, Technical Centre, Hoge Wei 33 B, B-1930 Zaventem, Belgium

Abstract

The electrochemical oxidation of a transition metal oxide through calcium extraction is achieved for the first time. The 1D framework of Ca₃Co₂O₆ is maintained upon oxidation and the new phase formed exhibits a modulated structure. The process occurs at high potential and is partially reversible, which opens prospects for a calcium battery proof-of-concept.

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Article information

DOI: https://doi.org/10.1039/C8DT01754A
Article type: Communication
Submitted: 02 May 2018
Accepted: 14 Jun 2018
First published: 14 Jun 2018

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Dalton Trans., 2018,47, 11298-11302

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Electrochemical calcium extraction from 1D-Ca₃Co₂O₆

D. S. Tchitchekova, C. Frontera, A. Ponrouch, C. Krich, F. Bardé and M. R. Palacín, Dalton Trans., 2018, 47, 11298 DOI: 10.1039/C8DT01754A

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Dalton Transactions