CeO_2基中温电解质材料的掺杂改性

Modification of ceria-based low or intermediate temperature solid electrolyte materials by doping

CeO2基材料作为一种很有前景的中、低温固体电解质材料,在具有高的离子导电性能的同时,还要保证具有工作条件下的化学稳定性能,以及很好的烧结性能和机械性能。综述了通过掺杂改性来提高CeO2基电解质材料的电性能、烧结性能和机械性能方面的研究进展,比较了各类掺杂制备方法,并指出液相掺杂中的共沉淀法和均匀沉淀法是目前制备CeO2基电解质材料最有效的方法,最后对CeO2基电解质材料研究的发展方向提出了展望。

The ceria-based solid electrolytes are the most promising electrolytes for low or intermediate temperature SOFC. As solid electrolytes, they must have high oxygen ion conductivity in running atmosphere with chemical stability, as well as good sintering properties and mechanical properties. Modification of ceria-based solid electrolytes materials by doping were reviewed in this paper, which also brought forward the merits of co-precipitation and homogenous precipitation methods and the future study aspects of the materials.