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氧化钇稳定的氧化锆(YSZ)具有氧离子电导率,但稀土氧化物掺杂CeO_2基电解质电导率更高。钆和钇共掺杂的氧化铈Ce_(0.9)Gd_(0.1)Y_(0.1)O_(1.9)(GYDC)粉末通过甘氨酸硝酸盐法合成。GYDC的制备通过使用相应的粉体来压制成颗粒并在空气中烧结他们。GYDC固体氧化物燃料电池的测试通过XRD、BET激光粒度等方法对合成的固溶体进行表征。XRD结果表明600℃焙烧产物有立方萤石结构。以甘氨酸为还原剂,金属硝酸盐作为氧化剂,采用低温燃烧法制备双掺杂CeO_2基超细粉体GYDC。按照低温燃烧反应的特点,系统地研究了不同的甘氨酸与金属硝酸盐的物质的量比(G/N)对燃烧反应历程,产物的性能和产率的影响。
Yttria stabilized zirconia (YSZ) has oxygen ion conductivity, but rare earth oxide doped CeO 2 -based electrolytes have higher conductivity. The gadolinium and yttrium co-doped ceria Ce_ (0.9) Gd_ (0.1) Y_ (0.1) O_ (1.9) (GYDC) powders were synthesized by the glycine nitrate method. GYDC was prepared by using corresponding powders to compact into granules and sintering them in air. GYDC solid oxide fuel cell test The synthesized solid solution was characterized by XRD, BET laser particle size and other methods. XRD results show that the calcined product at 600 ℃ has a cubic fluorite structure. Using glycine as reducing agent and metal nitrate as oxidant, the dual-doped CeO_2-based ultrafine powder GYDC was prepared by low temperature combustion. According to the characteristics of the low temperature combustion reaction, the effect of the ratio of different glycine and metal nitrate molar ratio (G / N) on the combustion reaction process, product performance and yield was systematically studied.