The electrical and thermal properties of sodium sulfate mixed with lanthanum sulfate and aluminum oxide
Abstract Sodium sulfate mixed with yttrium sulfate and aluminum oxide was prepared and its phases and electrical properties were studied. The Na2SO4Y2(SO4)3Al2O3 electrolyte maintains a phase similar to the Na2SO4I phase, which is effective in Na+ cationic conduction, and shows higher electrical conductivities than pure sodium sulfate. Electromotive force (EMF) measurements were performed with a sulfur dioxide gas concentration cell method and with a solid reference electrode method. A good agreement between the measured and calculated EMF was obtained, for the inlet SO2 gas concentration range from 200 ppm to 1%.