掺杂对CeO2基电解质材料性能的影响研究进展
收稿日期: 2019-11-21
网络出版日期: 2020-05-21
基金资助
2017年河南省科技计划项目(172102210115);2018年河南省科技计划项目(182102210140);2018年河南省重点研发与推广专项(182102210564);河南省高校科技创新人才计划(18HASTIT030);郑州市地方高校市级大学生创新创业训练计划项目(ZDC2018002);郑州师范学院科技创新团队支持计划;郑州师范学院大学生创新性实验计划(DCZ2018020)
Research progress in effect of doping on properties of CeO2-based electrolyte materials
Received date: 2019-11-21
Online published: 2020-05-21
掺杂CeO2基电解质是中低温固体氧化物燃料电池（SOFC）理想的电解质材料。首先阐述了掺杂CeO2基电解质结构与性能的关系,接着介绍了金属离子掺杂对CeO2基电解质晶体结构和电子结构的影响,重点综述了单元素掺杂和双元素掺杂对CeO2基电解质性能的影响。通过分析得出：稀土金属元素单掺杂比碱土金属元素单掺杂更能显著提高CeO2基电解质的导电性和可烧结性,但稀土氧化物的原料成本要远高于碱土氧化物;双元素掺杂比单元素掺杂具有更多的氧空位无序度和更小的氧离子迁移激活能,因此在提高CeO2基电解质的离子电导率方面更有优势。总结了CeO2基电解质材料的掺杂规律及构效关系,以期对制备出性能更加优异的CeO2基电解质起到一定的指导作用。
关键词： 固体氧化物燃料电池（SOFC）; CeO2基电解质; 碱土金属元素掺杂; 稀土金属元素掺杂; 过渡金属元素掺杂
张洁 , 赵梦杰 , 崔颍琦 , 李成刚 , 高金海 . 掺杂对CeO2基电解质材料性能的影响研究进展[J]. 无机盐工业, 2020 , 52(5) : 1 -5 . DOI: 10.11962/1006-4990.2019-0388
The doped CeO2-based material is an ideal electrolyte material for medium-low temperature solid oxide fuel cells（SOFC）.Firstly,the relationship between the structure and properties of doped CeO2-based electrolytes was described.Then,the effects of metal ion doping on the crystal structure and electronic structure of CeO2-based electrolytes were introduced. The effects of single-element doping and two-element doping on the properties of CeO2-based electrolytes were mainly revie-wed.By analysis,the results showed that：comparing with single-doping of alkaline earth elements,the single-doping of rare earth metal elements significantly improved the conductivity of CeO2-based electrolytes,but the raw material cost of rare earth oxides was much higher than that of rare earth oxides.CeO2-based electrolytes doping with two-element presented more oxygen vacancy disorder and less oxygen ion mobility activation energy than the single-element doping,so two-element doping had more advantages in improving the ionic conductivity of the CeO2-based electrolyte.The doping rules and relationship be-tween the structure and properties of CeO2-based electrolyte materials was summarized,in order to play a guiding role in the preparation of CeO2-based electrolytes with better performance.
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