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溶液燃烧法合成11ScSZ-2Mn_2O_3电解质粉体及其应用 被引量：1

Synthesis and application of 11ScSZ-2Mn_2O_3 electrolyte powder by a solution combustion method
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摘要 采用硝酸盐-甘氨酸溶液燃烧法合成了(ZrO2)0.87(Sc2O3)0.11(Mn2O3)0.02(11ScSZ-2Mn2O3)粉体,通过X射线衍射仪(XRD)、透射电镜(TEM)、场发射扫描电镜(FESEM)及氮气吸附等手段对粉体进行表征。结果表明,所合成的11ScSZ-2Mn2O3粉体具有单一立方结构,比表面积达28.6m2/g,粒度均匀。非等温和等温烧结测试均表明该粉体具有良好的烧结活性,可在1200℃下烧结致密化。以11ScSZ-2Mn2O3粉体为原料配制电解质粉体浆料,采用浸渍-提拉法在NiO-氧化钇稳定氧化锆(YSZ)阳极基体上制备了电解质薄膜,在1250℃下实现了负载型薄膜的烧结致密化,与La0.6Sr0.4Co0.2Fe0.8O3-δ(LSCF)阴极组装了单元电池Ni-YSZ/11ScSZ-2Mn2O3/LSCF。该单元电池在中温下以H2为燃料表现出良好的电性能输出,在操作温度为650℃和700℃下的最大输出功率密度分别为0.55W/cm2和0.90W/cm2。 （ZrO2）0.87 （Sc2O3）0.11 （Mn2O3）0.02 （11ScSZ-2Mn2O3） powder was synthesized by a nitrate-glycine solution combustion route.The properties of 11ScSZ-2Mn2O3 powder were characterized by X-ray diffractometer （XRD）,transmission electron microscopy （TEM）,field-emission scanning electron microscopy （FESEM） and nitrogen adsorption method.The results show that 11ScSZ-2Mn2O3 powder is in the pure cubic structure with a specific surface area of 28.6 m^2/g and uniform particle size distribution.The results of non-isothermal and isothermal sintering tests suggests that 11ScSZ-2Mn2O3 powder possesses high sintering activity and can be fully sintered below 1 200 ℃.NiO-YSZ （YSZ：yttria stabilized zirconia） anode-supported dense 11ScSZ-2Mn2O3 electrolyte film was prepared by dip-coating method and then sintered at 1 250 ℃ for 4 h.With La0.6Sr0.4Co0.2Fe0.8O3-δ（LSCF） as the cathode,the single cell Ni-YSZ/11ScSZ-2Mn2O3/LSCF was constructed.The cell demonstrated excellent generation performance with the maximum power densities of about 0.55 and 0.90 W/cm^2 under operation at 650 ℃and 700 ℃,respectively.
作者 雷泽 韩敏芳
机构地区 中国矿业大学(北京)化学与环境工程学院煤气化燃料电池研究中心
出处 《电源技术》 CAS CSCD 北大核心 2010年第3期253-256,共4页 Chinese Journal of Power Sources
基金 国家自然科学基金青年科学基金资助项目(20806088)
关键词 固体氧化物燃料电池 SOFC 燃烧法 氧化锆 氧化钪 氧化锰 烧结 solid oxide fuel cell SOFC combustion method zirconia scandia manganese oxide sintering
分类号 TM911.4 [电气工程—电力电子与电力传动]
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参考文献15

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共引文献6

同被引文献29

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