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Fundamentals Of Srcoo3 Based Oxygen-Deficient Perovskites As Cathodes For Solid Oxide Fuel Cells, Tianrang Yang
Fundamentals Of Srcoo3 Based Oxygen-Deficient Perovskites As Cathodes For Solid Oxide Fuel Cells, Tianrang Yang
Theses and Dissertations
The local structure and oxygen stoichiometry in oxide systems have a profound impact on oxygen electrocatalysis encountered in metal-air batteries and solid oxide fuel cells (SOFCs). However, this knowledge is often obtained under conditions different from the real working conditions of the material, resulting in misinterpretation and misunderstanding. This PhD dissertation aims to obtain the structure and oxygen stoichiometry information of a class of perovskite oxides under their real working conditions in solid oxide fuel cells. Several perovskite oxides were selected for the study: Sr0.9Y0.1CoO3- (SYC10), Sr0.9Y0.3CoO3- (SYC30), SrCo0.9Nb0.1O3- (SCN10) and SrCo0.9Ta0.1O3- (SCT10). The local crystal structure and oxygen stoichiometry …