Processing of perovskite La0.9Sr0.1Ga0.8Mg0.2O3-δ electrolyte by glycine-nitrate combustion method

Investigating the effect of rGO on microstructural and electrical properties of La0.9Sr0.1Ga0.8Mg0.2O3 in intermediate temperature SOFCs

“…The PP factor was applied to measure the phase purity of LSGM and is defined by the peak intensities for LSG3 (LaSrGa 3 O 7 ) and LSG (LaSrGaO 4 ) phases relative to that of the LSGM phase, as described in eqn (2). 34,35 …”

“…It might be attributed to Raman modes made active by vacancies, distortions, and defects induced on the sheet of graphene by the presence of various functional groups. 34,37…”

Recent Progress in the Design, Characterisation and Application of LaAlO3- and LaGaO3-Based Solid Oxide Fuel Cell Electrolytes

“…A linear correlation between hardness and total ionic conductivity was revealed in [126] for La 0.9 Sr 0.1 Ga 0.8 Mg 0.2 O 3−δ and La 0.85 Sr 0.15 Ga 0.8 Mg 0.2 O 3−δ samples. It was shown that the electrical and mechanical properties of La 1−x Sr x Ga 1−y Mg y O 3−δ are strongly defined by microstructural peculiarities and the presence of low-conductive LaSrGaO 4 and LaSrGa 3 O 7 impurity phases [123]. The LaSrGaO 4 phase exhibits a tetragonal structure K 2 NiF 4 -type and crystalizes in the I4/mmm space group; its conductivity is found to be around 2•10 −7 S cm −1 at 900 • C [136].…”

Probing the Signature of Disordering and Delocalization of Oxygen Vacancies and Anti-site Defects in Doped LaAlO3 Solid Electrolytes

“…However, the main drawback with LSGM is the formation of a secondary phase of LaSrGaO 4 and LaSrGa 3 O 7 , which further decreases the oxygen ion conductivity. 12 Researchers are particularly focused on either replacing or improving the ABO 3 solid electrolyte material.…”

“…The Sr- and Mg-doped LaGaO 3 (LSGM) is considered as a suitable candidate for the solid electrolyte material in SOFC applications. However, the main drawback with LSGM is the formation of a secondary phase of LaSrGaO 4 and LaSrGa 3 O 7 , which further decreases the oxygen ion conductivity . Researchers are particularly focused on either replacing or improving the ABO 3 solid electrolyte material.…”