Electrochemical investigations in liquid and supercritical 1,1,1,2-tetrafluoroethane (HFC 134a) and difluoromethane (HFC 32)

被引:33
作者
Abbott, AP [1 ]
Eardley, CA [1 ]
Harper, JC [1 ]
Hope, EG [1 ]
机构
[1] Univ Leicester, Dept Chem, Leicester LE1 7RH, Leics, England
来源
JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 1998年 / 457卷 / 1-2期
基金
英国工程与自然科学研究理事会;
关键词
potential window; HFC; 32; 134a; supercritical fluid;
D O I
10.1016/S0022-0728(98)00337-4
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
This communication outlines the use of HFC 134a and HFC 32 in both the liquid and supercritical states. The comparatively mild critical conditions are used to show that both of these solvents are important for studying electrochemical processes in the supercritical state. The higher polarity of these media in the supercritical state circumvent many of the problems associated with solubility, conductivity and ion adsorption on the electrode surface observed with other supercritical media also. The unprecedented wide potential window of HFC 134a is demonstrated and utilised for the oxidation of Xe and Cs+. (C) 1998 Elsevier Science S.A. All rights reserved.
引用
收藏
页码:1 / 4
页数:4
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