Three-dimensional and functional interface designs by bottom-up composite processing using fine-nanosized particles

基于细纳米级氧化物颗粒（<10nm）的分散和混凝，研究了一种自下而上的复合工艺来合成纳米复合颗粒。采用新方法合成了固体氧化物燃料电池（SOFC）的正极和负极材料。研究还表明，由这些纳米复合粒子制备的电极由于形成了大的三相边界而性能得到了提高。研究了阴离子碳酸锆配合物的多重共沉淀法，并证明了该方法可以合成均匀的纳米复合颗粒。利用纳米复合粒子制备了具有纳米结构Ni-YSZ阳极活性层的阳极负载SOFC，并观察到较高的功率密度。

A composite bottom-up processing has been investigated for syntheses of nanocomposite particles, based on utilization of dispersion and coagulation of fine-nanosized oxide particles (<10nm). Anode and cathode electrode materials of solid oxide fuel cells (SOFC), has been synthesized by the newly developed method. It was also demonstrated that the performances of electrodes fabricated from these nanocomposite particles are enhanced due to formation of large triple phase boundary. A multiple co-precipitation method has been studied using anionic Zr carbonate complex, and it has been demonstrated that homogenous nanocomposite particles are synthesized by this method. An anode-supported SOFC with a nanostructured Ni-YSZ anode active layer was fabricated using the nanocomposite particles, and a relatively high power density wad observed.