Synthesis and Characterization of La<sub>0.8</sub>Sr<sub>0.2</sub>MnO<sub>3-δ</sub> Nanostructures for Solid Oxide Fuel Cells
- 1 Institut für Chemie, AG Elektrochemie, Technische Universit?t Chemnitz, Chemnitz, Germany
- 2 Institut für Chemie, AG Elektrochemie, Technische Universit?t Chemnitz, Chemnitz, Germany
- 3 Department of Chemistry, Southern University and A&M College, Baton Rouge, USA
Abstract
La 0.8 Sr 0.2 MnO 3-δ (LSM) perovskite was synthesized using different methods, such as solid state reaction, soft-chemical and sol-gel methods for solid oxide fuel cells (SOFCs) for use as a cathode material. The pristine material was characterized by X-ray diffraction, thermogravimetric analysis (TGA), differential scanning calorimetry (DSC) and scanning electron microscopy (SEM). X-ray diffraction results show that the pure phase of La 0.8 Sr 0.2 MnO 3-δ (LSM) perovskite was formed at 1250 o C . Scanning electron microscopy characterization shows that a highly porous material can be obtained using a soft-chemical method with different 3,3 ’ ,3 ” -nitrilotripropionic acid ( NTP) to metal-ion ratio R .
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