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Solid electrolyte oxygen generator electrolysis test module with improved ceramic to ceramic and metal seals, electrode and grid design, discussing performance tests

Development of aerospace life support system for oxygen production from carbon dioxide

Performance tests of CO2-H2O solid oxide electrolyte electrolysis system for generation of oxygen for life support systems

Carbon dioxide-water solid oxide electrolyte electrolysis system

Oxygen reclamation from carbon dioxide using solid oxide electrolyte, noting water vapor catalytic effect

Operational performance of carbon dioxide electrolyzers using solid electrolytes for oxygen reclamation

Electrolytic dissociation of carbon dioxide-water using solid oxide electrolyte

In a closed ecological system it is necessary to reclaim most of the oxygen required for breathing from respired carbon dioxide and the remainder from waste water. One of the advanced physicochemical systems being developed for generating oxygen in manned spacecraft is the solid electrolyte-electrolysis system. The solid electrolyte system consists of two basic units, an electrolyzer and a carbon monoxide disproportionator. The electrolyzer can reclaim oxygen from both carbon dioxide and water. Electrolyzer preparation and assembly are discussed together with questions of reactor design and electrolyzer performance data.

Electrolyte operated at an elevated temperature in an electrolysis cell regenerates oxygen from metabolic carbon dioxide found in closed-cycle cabin atmospheres.

Noble-metal braze applied to appropriately prepared zirconia parts produces a gas-tight, durable seal that can withstand temperature of 825 C for over 2000 hours without deterioration.