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中文摘要：
以Ni（NO3）2.6H2O为主要原料,氨水为沉淀剂,采用沉淀法制备草酸镍。以草酸镍作为SOFC阳极材料。通过XRD、DTA-TG、SEM和电化学工作站等测试手段分别对粉体物相、热综合分析及电池的结构与电性能进行了表征。研究结果表明,利用沉淀法制备的粉体为单斜晶系的Ni2C2O4.2H2O,以NiC2O.42H2O作为阳极材料,具有很高的催化活性,使得单电池在H2燃料气下750℃的开路电压为1.05V,最高功率密度为1.32W/cm2。
英文摘要：
Using nickel nitrate as raw materials,ammonia as precipitating agent,nickel oxalate was prepared by precipitation method.The nickel oxalate was used as anode material for SOFC.Phase and thermal analysis of the powder,structure and electrical properties of solid oxide fuel cell were conducted by XRD,DTA-TG,SEM and electrochemical workstation,respectively.The results showed that the nickel oxalate powder prepared by precipitation method was of a monoclinic system,the nickel oxalate had high catalytic activity when used as an anode material for SOFC,and the open circuit voltage（OCV） and the highest power density of single cell were 1.05V and 1.32W/cm2 at 750°C with H2 as the fuel.
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