中山大学学报(自然科学版)2007，Vol.46Issue(z1)：293-295,3.
甘氨酸-硝酸盐法合成La1-xSrxCr1-yMnyO3-δ阳极材料及性能研究
Synthesis and Properties of La1-xSrxCr1-yMnyO3-δAnode Material by Glycine-Nitrate Process
摘要
Abstract
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.关键词
La1-xSrxCr1-yMnyO3-δ/阳极材料/甘氨酸-硝酸盐法/固体氧化物燃料电池/性能Key words
La1-xSrxCr1-yMnyO3-δ/anode material/glycine nitrate process/solid oxide fuel cell/properties分类
信息技术与安全科学引用本文复制引用
刘荣辉,马文会,王华,杨斌,马学菊,戴永年..甘氨酸-硝酸盐法合成La1-xSrxCr1-yMnyO3-δ阳极材料及性能研究[J].中山大学学报(自然科学版),2007,46(z1):293-295,3.基金项目
国家自然科学基金资助项目(50204007)) （50204007）
云南省中青年学术带头人后备人才资助项目(2005PY01-33) （2005PY01-33）
