Electrochemical Gas Evolution Reactions under Microgravity - Electrochemical significance and a recent experimental result

Abstract

Electrochemical informations under microgravity are of great interest and importance for science and technology in space; however few studies have been reported except for a sounding rocket experiment (TEXUS 1 Program) in 1978. As an example of electrochemical reactions under microgravity, an experiment of water electrolysis under microgravity by parabolic flights has been performed. Bubble evolved on a gold electrode have been observed and the formation process of a bubble has been discussed. Current-Voltage relationships of water electrolysis under terrestrial and microgravity conditions have been also discussed.