Carbon dioxide gas sensing with the combination of divalent magnesium ion and oxide ion conducting solid electrolytes

The main gas species causing the global warming of the earth is carbon diox ide (CO2) and the human race must seek for the solution to suppress the con tinuous increase crisis of the CO2 concentration in the atmosphere. Here, t wo types of solid electrolytes were rigidly selected from their thermodynam ic stability and reasonably high ionic conducting properties point of view to create the CO2 practical sensing performance.