Synthesis and Properties of La1-xSrxCr1-yMnyO3-δ Anode Material by Glycine-Nitrate Process
Thermogravimetric analysis (TGA) and differential scanning calorimetric (DSC) method was adopted to characterize the reaction process of La0.7Sr0.3Cr0.5Mn0.5O3-δ(LSCM7355) anode material by glycine nitrate process. The microstructure and features of LSCM7355 were tested by X-ray diffraction (XRD) , scanning electron microscopy (SEM) , energy dispersive spectroscopy (EDS) , direct current four-electrode and temperature process reduction (TPR) techniques. XRD patterns indicates that perovskite phase existed after the precursor was sintered at 1 000℃ for 5 h, and LSCM7355 material with single perovskite phase was obtained after sintering at 1 200 ℃ for 5 h. The molar ratio of the elements in LSCM7355 material agrees well with the designed value. The powders have nanometer and micrometer size after sintering at 1 000 ℃ and 1 200 ℃, respectively. The total conductivity of LSCM7355 increases linearly with temperature at air and reaches 25 S/cm at 850 ℃, which wholly becomes smaller in the pure hydrogen and methane.
La1-xSrxCr1-yMnyO3-δ anode material glycine nitrate process solid oxide fuel cell properties
LIU Rong-hui MA Wen-hui WANG Hua YANG Bin MA Xue-ju DAI Yong-nian
Faculty of Materials and metallurgical Engineering, Kunming University of Science and Technology, Ku Faculty of Materials and metallurgical Engineering, Kunming University of Science and Technology, Ku
国际会议
北京
英文
293-295
2006-08-03（万方平台首次上网日期，不代表论文的发表时间）