This technology addresses NASA's need for ISRU technologies to support a sustained human presence on the Moon and Mars. The Martian atmosphere is 95% carbon dioxide representing a valuable in situ resource. The proposed technology will collect and pressurize carbon dioxide for use in ISRU technologies to generate fuel and oxygen. This technology will have significant terrestrial-based applications. The market for separating carbon dioxide from other gases is expected to grow with continued interest and emphasis on reducing CO2 emissions. A compact electrochemical reactor that efficiently separates and concentrates CO2 can be used in sequestration scenario, alternative fuels production, as well at mitigating CO2 emissions from coal-fired power plants.