摘要
采用甘氨酸-硝酸盐法一步合成含有低浓度聚乙烯吡咯烷酮(PVP-K30)造孔剂的NiO-Ce_(0.8)Gd_(0.2)O_(2-δ)(NiO-GDC)复合阳极粉体,研究添加不同含量(3%,5%,7%)PVP-K30造孔剂对NiO-GDC阳极表面吸附、孔隙率及阳极形貌的影响。实验结果表明,当PVP-K30造孔剂添加比为5%时,阳极比表面积为35.47 m^(2)·g^(-1),孔隙率为24.75%,孔容较大且成孔均匀。应用5%PVP-K30造孔剂制备的电解质支撑NiO-GDC┃GDC┃LSCF-GDC固体氧化物燃料电池,在650℃下,单电池开路电压为0.91 V,最大功率密度为0.112 W·cm^(-2)。
The pore-forming agent polyvinylpyrrolidone(PVP-K30)and NiO-Ce_(0.8)Gd_(0.2)O_(2-δ)(NiO-GDC)composite anode powder were prepared by one-step glycine-nitrate synthesis method.The effects of different content(3%,5%and 7%)PVP-K30 on the surface adsorption and porosity of NiO-GDC anode was studied.The results showed that the best ratio of PVP-K30 pore-forming agent for NiO-GDC was 5%with the specific surface area of 35.47 m^(2)·g^(-1)and the porosity of 24.75%.The anode microstructure of NiO-GDC formed large and uniform pore volume.The electrolyte supported NiO-GDC|GDC|LSCF-GDC single cell prepared with 5%PVP-K30 pore-forming agent showed the open circuit voltage of 0.91 V and the maximum power density of 0.112 W·cm^(-2)at 650℃.
作者
刘媛媛
安胜利
贺颖
张睿轩
杨艳娇
Liu Yuanyuan;An Shengli;He Ying;Zhang Ruixuan;Yang Yanjiao(School of Material and Metallurgical Engineering,Inner Mongolia University of Science and Technology,Baotou 014010,China;School of Chemistry and Chemical Engineering,Inner Mongolia University of Science and Technology,Baotou 014010,China;Inner Mongolia Key Laboratory of Advanced Ceramics and Device,Baotou 014010,China)
出处
《中国稀土学报》
CAS
CSCD
北大核心
2021年第2期257-263,I0002,共8页
Journal of the Chinese Society of Rare Earths
基金
国家自然科学基金项目(51474133,51864040)
内蒙古自然科学基金项目(2017MS0221,2017BS0504)资助。
