Jump to main content
Jump to site search
Access to RSC content Close the message box

Continue to access RSC content when you are not at your institution. Follow our step-by-step guide.


Issue 23, 2017, Issue in Progress
Previous Article Next Article

Intercalation behaviour of magnesium into natural graphite using organic electrolyte systems

Author affiliations

Abstract

The focus of this study is on the investigation of electrochemical intercalation and deintercalation behaviour of Mg2+ into natural graphite electrodes in organic electrolyte. We used as a conductive salt magnesium bis(trifluoromethylsulfonyl)imide (Mg(TFSI)2) dissolved in N,N-dimethylformamide (DMF) as organic solvent. By utilization of conductivity measurements within a broad temperature range (−20 °C to +60 °C), a conductivity maximum is to be found at a concentration of 0.5 M for all temperatures. Thus, in this study all electrochemical investigations dealing with magnesiation of graphite anodes are made with the electrolyte system 0.5 M Mg(TFSI)2/DMF. In three electrode cells (Swagelok© T-cells) we obtain cathodic and anodic currents, which are highly reversible and last for more than 100 cycles showing a coulombic efficiency above 98%. SEM images reveal a non-destructive intercalation of cationic species into graphite and the formation of a magnesiated graphite intercalation compound is confirmed by ex situ XRD diffraction measurements.

Graphical abstract: Intercalation behaviour of magnesium into natural graphite using organic electrolyte systems

Back to tab navigation

Supplementary files

Article information


Submitted
16 Dec 2016
Accepted
20 Feb 2017
First published
02 Mar 2017

This article is Open Access

RSC Adv., 2017,7, 14168-14175
Article type
Paper

Intercalation behaviour of magnesium into natural graphite using organic electrolyte systems

C. God, B. Bitschnau, K. Kapper, C. Lenardt, M. Schmuck, F. Mautner and S. Koller, RSC Adv., 2017, 7, 14168
DOI: 10.1039/C6RA28300D

This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence. Material from this article can be used in other publications provided that the correct acknowledgement is given with the reproduced material and it is not used for commercial purposes.

Reproduced material should be attributed as follows:

  • For reproduction of material from NJC:
    [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the Centre National de la Recherche Scientifique (CNRS) and the RSC.
  • For reproduction of material from PCCP:
    [Original citation] - Published by the PCCP Owner Societies.
  • For reproduction of material from PPS:
    [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the European Society for Photobiology, the European Photochemistry Association, and RSC.
  • For reproduction of material from all other RSC journals:
    [Original citation] - Published by The Royal Society of Chemistry.

Information about reproducing material from RSC articles with different licences is available on our Permission Requests page.


Social activity

Search articles by author

Spotlight

Advertisements