A Study of Electrochemical Reduction of Ethylene and Propylene Carbonate Electrolytes on Graphite Using ATR-FTIR Spectroscopy | Zendy

Guorong V. Zhuang | Zendy; Hui Yang | Zendy; Berislav Blizanac | Zendy; Philip N. Ross | Zendy

Open Access

A Study of Electrochemical Reduction of Ethylene and Propylene Carbonate Electrolytes on Graphite Using ATR-FTIR Spectroscopy

Author(s) -

Guorong V. Zhuang,

Hui Yang,

Berislav Blizanac,

Philip N. Ross

Publication year - 2005

Publication title -

electrochemical and solid-state letters

Language(s) - English

Resource type - Journals

eISSN - 1944-8775

pISSN - 1099-0062

DOI - 10.1149/1.1979327

Subject(s) - attenuated total reflection , fourier transform infrared spectroscopy , propylene carbonate , ethylene carbonate , electrolyte , electrochemistry , graphite , materials science , carbonate , spectroscopy , salt (chemistry) , inorganic chemistry , electrode , chemistry , chemical engineering , organic chemistry , physics , quantum mechanics , engineering , composite material , metallurgy

We present results testing the hypothesis that there is a different reaction pathway for the electrochemical reduction of PC versus EC-based electrolytes at graphite electrodes with LiPF6 as the salt in common. We examined the reduction products formed using ex-situ Fourier Transform Infrared (FTIR) spectroscopy in attenuated total reflection (ATR) geometry. The results show the pathway for reduction of PC leads nearly entirely to lithium carbonate as the solid product (and presumably ethylene gas as the co-product) while EC follows a path producing a mixture of organic and inorganic compounds. Possible explanations for the difference in reaction pathway are discussed.

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