北华大学学报（自然科学版）2017，Vol.18Issue(4)：445-449,5.DOI:10.11713/j.issn.1009-4822.2017.04.005
复合固体电解质NGM-GYDC的微观结构和电性能
Microstructure and Electrical Properties of Composite Electrolytes of NGM-GYDC
摘要
Abstract
Initial electrolyte powders of Ce0.8Gd0.15Y0.05O2-δ(GYDC) and NdGa0.9Mg0.1O3-δ (NGM)were prepared by sol-gel methods and thermally treated at 800℃ and 1200℃,respectively.GYDC was mechanically mixed with NGM by ratios of 1:0.05,1:0.10,and 1:0.15 and calcined at 1300℃,1400℃,and 1500℃ to obtain the composite electrolyte material of NGM-GYDC.The characterization techniques,including X-ray diffraction (XRD),scanning electron microscope (SEM),and electrochemical impedance spectroscopy analyses,were used to study the effect of the NGM content and calcinations temperature on the microstructure and electrical properties of the composite electrolyte material of NGM-GYDC.Single phase cubic fluorite structure was found for all NGM-GYDC materials calcined at 1300℃ for 10h.The crystallites of all samples at 1300℃ were sphere-like and well-distributed.Among composite electrolyte materials,the sample of 010NGM-GYDC exhibited features of relatively high conductivity and low activation energy.At 600℃,its conductivity was σ600℃=2.81×10-3 S/cm and the activation energy was Ea=0.83eV.The conductivity was higher by 2.15 times than that of the base material of NGM,which was σ600℃=1.31×10-3 S/cm and Ea=0.92eV.关键词
固体电解质/X射线衍射(XRD)/扫描电子显微镜(SEM)/电导率Key words
composite solid electrolyte/X-ray diffraction/SEM/conductivity分类
化学化工引用本文复制引用
韩健,朱丽丽,林晓敏..复合固体电解质NGM-GYDC的微观结构和电性能[J].北华大学学报（自然科学版）,2017,18(4):445-449,5.基金项目
吉林省教育厅科学技术研究项目(2014181). （2014181）
