Title

Mixed Conductors for Electrochemical CO2 Separation

Document Type

Article

Abstract

One of the major concerns of consuming fossil fuels to produce useful form of energy is the emission of CO2, a greenhouse gas that can cause climate change and ultimately threaten the survival of humanity. Controlling CO2-emission is an urgent but the only practical solution to stabilize CO2 concentration in the atmosphere. In this paper, we report our effort to capture CO2 from a simulated flue gas by utilizing a dual-phase mixed electron and carbonate-ion conducting (MECC) membrane. The obtained CO2 flux density is the highest among the published dual-phase carbonate systems. These results demonstrate the Ag-MC dual-phase composite as a promising high-flux membrane for high-temperature electrochemical CO2 separation from flue gas with high selectivity.

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