AFM study of oxygen reduction products on HOPG in the LiPF6-DMSO electrolyte
作者： Santiago E Herrera , Alvaro Y Tesio , Romain Clarenc , Ernesto J Calvo , None
DOI: 10.1039/C3CP54621G
关键词:
摘要: Ex situ atomic force microscopy (AFM) has been used to study the morphology of oxygen reduction products in 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 initial deposits decorate edge steps HOPG. At higher overpotentials massive deposit covers terraces. Upon charging battery cathode oxidation dissolution do not take place until high are reached which solvent decomposition demonstrated by FTIR studies.
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