引用本文:
【打印本页】   【HTML】   【下载PDF全文】   View/Add Comment  【EndNote】   【RefMan】   【BibTex】
←前一篇|后一篇→ 过刊浏览    高级检索
本文已被:浏览 2758次   下载 3554 本文二维码信息
码上扫一扫!
分享到: 微信 更多
Structure, Electrical and Oxygen Transport Properties of Fe-Doped SrCoO3−δ Perovskites
Jian-xin Yi1, Shao-jie Feng2, Qing Zeng3, Chu-sheng Chen3
1.State Key Laboratory of Fire Science, Department of Safety Science and Engineering, University of Science and Technology of China, Hefei 230026, China;2.School of Materials Science and Chemical Engineering, Anhui University of Architecture, Hefei 230022, China;3.CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, China
Abstract:
The structure-property relationship of Fe-doped SrCoO3-δ was studied. With increase of Fe content in SrCo1-xFexO3-δ from x=0 to x=0.2, the phase composition changed progressively in the order of hexagonal→brownmillerite (main)+hexagonal→cubic (main)+brownmillerite→single cubic phase. Transition between the hexagonal/brownmillerite phase and the cubic phase took place with variation of the operating conditions, and was associated with remarkable changes in the electrical conductivity and oxygen permeation flux.
Key words:  Perovskite  Ceramic membrane  Electrical  Oxygen transport  Structure
FundProject:
Fe掺杂SrCoO3−δ钙钛矿的结构、电及氧输运性能
易建新1, 冯绍杰2, 曾庆3, 陈初升3
1.中国科学技术大学安全科学与工程系,火灾科学国家重点实验室,合肥 230026;2.安徽建筑大学材料科学与化工学院,合肥 230022;3.中国科学技术大学材料科学与工程系,中国科学院能量转换材料重点实验室,合肥 230026
摘要:
采用XRD、DTA、电导和氧渗透测量等手段研究了Fe掺杂SrCoO3-δ钙钛矿的结构-性能关系.结果表明,随着Fe含量由0增加到0.2,材料的相组成逐渐发生六方相→brownmillerite主相+六方相→立方相主相+六方相→纯立方相的变化.随着温度变化,六方相及brownmillerite相与立方相之间发生转变;与此相应,材料的电导率和氧渗透率发生了显著变化.
关键词:  钙钛矿  陶瓷膜    氧输运  结构
DOI:10.1063/1674-0068/28/cjcp1411192
分类号: