The use of alkali carbonates in carbon concentration cells

Abstract

The feasibility of using alkali carbonates as electrolytes in carbon concentration cells has been investigated. The following cell was set up: The test electrode (LHS) was a carbon-permeableα-iron membrane in contact with a gaseous or liquid metal environment whose carbon activity could be varied. Experiments involving argon and liquid sodium environments at 970 K showed that the potential of theα-Fe test electrode was a function of its carbon activity.