Inorganic Chemicals Industry >
Research progress in effect of doping on properties of CeO2-based electrolyte materials
Received date: 2019-11-21
Online published: 2020-05-21
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.
Jie Zhang , Mengjie Zhao , Yingqi Cui , Chenggang Li , Jinhai Gao . Research progress in effect of doping on properties of CeO2-based electrolyte materials[J]. Inorganic Chemicals Industry, 2020 , 52(5) : 1 -5 . DOI: 10.11962/1006-4990.2019-0388
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