Synthesis and characterization of solid electrolyte structure material (LiAlO2) using different kinds of lithium and aluminum compounds for molten carbonate fuel cells

Abstract

Synthesis and characterization of solid electrolyte structure material using different kinds of lithium and aluminum compounds for molten carbonate fuel cells have been carried out. Synthesis operations are performed using three different kinds of lithium compounds (LiOH.H₂O, LiNO₃ and Li₂CO₃) and two different kinds of aluminium compounds (Al₂O₃, Al(OH)₃). During the synthesis, all the reactions are conducted at four different pH levels (1.5, 4, 9.5 and 12) and are calcinated at three different temperatures in open air conditions. In the light of thermal, structural and surface area characterization (TG-DTA, XRD and BET analyses), it is concluded that LiAlO₂ which is produced with Li₂CO₃ and Al(OH)_3, is found to be convenient.