Synthesis, structural and morphological studies of Sr2+ and Gd3+ co-doped Ceria electrolyte system for LT-SOFC

[摘要] This paper reports the effect of Sr2+addition on the structural, microstructural properties of Ce0.8Gd0.2O2-δ(GDC) electrolyte for low temperature solid oxide fuel cell application. The Sr2+(0, 0.5, 1 and 2 mol %) doped GDC solid electrolytes have been prepared by solid state method. The sintered densities of the samples are around 95%. XRD study reveals the cubic fluorite structure. The microstructure of the samples resulted into grain sizes in the range of 4.3 to 0.868 μm. Raman spectra also confirms the presence of GDC single phase.

[发布机构] Department of Physics, Institute of Aeronautical Engineering College, Dundigal, Hyderabad; Telangana, India^1;Center for Ceramic Processing, International Advanced Research Centre for Powder Metallurgy and New Materials (ARCI), Hyderabad; AP; 500005, India^2;Chemistry Division, Bhabha Atomic Research Centre, Trombay; Mumbai, India^3;Department of Physics, St. Mary's Engineering College, Deshmukhi; R.R (DT), India^4;Department of Physics, Rajaram College, Kolhapur, India^5

[效力级别] 机械制造

[关键词] Co-doped cerias;Fluorite structure;Low temperature solid oxide fuel cells;Micro-structural properties;Morphological study;Single phase;Sintered density;Solid state method