Contrails
The goal of the Contrails project is to help preserve and disseminate the technical record of 20th century aerospace research, highlighting in particular the research endeavors of the Illinois Tech community.

Research On The Electrolysis Of Water With A Hydrogen-Diffusion Cathode To Be Used In A Rotating Cell

Report Number: AMRL TDR 62-94
Author: Clifford, John
Author: Faust, Charles
Corporate Author: Battelle Memorial Inst Columbus Ohio
Laboratory: Life Support Systems Laboratory
Date of Publication: 1962-08
Pages: 67
Contract: AF 33(616)-8431
Project: 6373
Task: 637302
AD Number: AD0289024

Abstract:
It is shown that the concept of a H-diffusion cathode is technici%%y feasible for potential use in a water-electrolysis cell for production of breathing O under weightless conditions. The best result was a cathode current density of 265 amp/sq ft at a cell voltage of 1.76 v while maintaining for about 1 hour 100% transmission of H through a cathode of Pd-Ag alloy foil (3/8-inch diameter x 0.001-inch thickness). The pure, dry H gas that permeated the cathode foil was collected at atmospheric pressure during electrolysis of a KOH electrolyte (50 wt-% KOH) at 230 C and 15 to 25 psig in a Teflon-lined cell with a Pt anode. The laboratory experiments with a stationary cell indicated the importance of designing for minimum electrolyte contamination and the need for further study of activation of the cathode foil. To supply breathing O for 3 men (6 lb of O/day), preliminary design estimates for a rotating cell (to provide an artificial gravity field for separation of O from the anode and electrolyte) indicate an electrolysis cell (exclusive of motor, controls, etc.) of 4-3/4-inch diameter x 4-3/4-inch height, weighing about 10 lb and consuming an electrolysis power of 670 w.


Provenance:
Lockheed Martin Missiles & Fire Control
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