Accession Number:

AD0289024

Title:

RESEARCH ON THE ELECTROLYSIS OF WATER WITH A HYDROGEN-DIFFUSION CATHODE TO BE USED IN A ROTATING CELL

Descriptive Note:

Corporate Author:

BATTELLE MEMORIAL INST COLUMBUS OH

Personal Author(s):

Report Date:

1962-08-01

Pagination or Media Count:

1.0

Abstract:

It is shown that the concept of a H-diffusion cathode is techniciy 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 ampsq 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 38-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 Oday, 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 4-34-inch diameter x 4-34-inch height, weighing about 10 lb and consuming an electrolysis power of 670 w. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE