Issue 21, 2014

AFM study of oxygen reduction products on HOPG in the LiPF6–DMSO electrolyte

Abstract

Ex situ atomic force microscopy (AFM) has been used to study the morphology of oxygen reduction products in the LiPF6–dimethyl sulfoxide (DMSO) electrolyte, i.e. Li2O2 on a highly oriented pyrolytic graphite (HOPG) surface. Both cyclic voltammetry and chronoamperometry have shown that at low cathodic polarization the initial deposits decorate the edge steps of HOPG. At higher overpotentials a massive deposit covers the terraces. Upon charging the battery cathode Li2O2 oxidation and dissolution do not take place until high overpotentials are reached at which solvent decomposition has been demonstrated by in situ FTIR studies.

Graphical abstract: AFM study of oxygen reduction products on HOPG in the LiPF6–DMSO electrolyte

Supplementary files

Article information

Article type
Paper
Submitted
01 Nov 2013
Accepted
16 Dec 2013
First published
18 Dec 2013

Phys. Chem. Chem. Phys., 2014,16, 9925-9929

AFM study of oxygen reduction products on HOPG in the LiPF6–DMSO electrolyte

S. E. Herrera, A. Y. Tesio, R. Clarenc and E. J. Calvo, Phys. Chem. Chem. Phys., 2014, 16, 9925 DOI: 10.1039/C3CP54621G

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements