水热法制备纳米NiO粉体及其应用研究

Preparation and Application of Nano NiO Powder by Hydrothermal Method

以Ni(NO3)2·6H2O、CO(NH2)2和乙二醇为原料,采用水热法制备纳米Ni O粉体,并将其应用于固体氧化物燃料电池阳极中,采用XRD、激光粒度仪、TEM和电化学工作站分别对粉体的物相、粒度分布、形貌和单电池的电性能进行了表征。研究结果表明,利用水热法制备了纯度高、分散性好的纳米Ni O粉体。将其用于固体氧化物燃料电池的阳极中,该单电池以氢气为燃料,空气为氧化气,在750℃的最大功率密度0.66W/cm2。

Nano NiO powder was prepared by hydrothermal method using Ni（NO3）2·6H2O,CO（ NH2 ）2 and ethanediol as raw materials. Then NiO was applied for anode of solid oxide fuel cell. Phase, size distrlbution, morphology of powder and electrical performance of single cell were characterized by X - Ray diffraction （XRD）, laser particle analyzer, transmission electron microscope（TEM） and electrochemical workstation. Results indicate that high purity and well dispersive nano NiO powder was obtained by hydrothermal method. When it was applied for anode of solid oxide fuel cell, the maximum power density of single cell was 0.66W/cm^2 using H2 as fuel, air as oxidation gas at 750℃.