ANODIC-OXIDATION MECHANISM OF PROPYLENE CARBONATE PLUS 1,2-DIMETHOXYETHANE ELECTROLYTIC SOLUTIONS

被引：0

作者：

NISHIMURA, K

MIZUMOTO, M

MOMOSE, H

HORIBA, T

机构：

来源：

DENKI KAGAKU | 1995年 / 63卷 / 09期

关键词：

ANODIC OXIDATION; PROPYLENE CARBONATE; 1,2-DIMETHOXYETHANE; NUCLEAR MAGNETIC RESONANCE;

D O I：

暂无

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Electrochemical stability of propylene carbonate (PC)+1,2-dimethoxyethane (DME), PC and ethylene carbonate (EC)+DME containing LiPF6 under anodic polarization of Pt electrodes was investigated by means of cyclic voltammetry, chronoamperometry and nuclear magnetic resonance (NMR) spectroscopy. Anodic oxidation current densities of these solvents at potentials lower than 5.0 V vs. Li/Li+ increased in the following order: PC<EC<DME. The NMR measurement shows that anodic oxidation of DME was predominant in LiPF6-containing PC+DME solutions up to 5.0 V vs. Li/Li+ because of a less electrochemical stability of DME than LiPF6 and PC. DME molecules underwent the non-electrochemical polymerization yielding the products containing -OCH3 and -OCH2-groups.

引用

页码：802 / 807

页数：6

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