新型中温离子导体复合膜：Sn0.94Sc0.06P2O7和聚四氟乙烯(PTFE)

doi:10.3969/j.issn.1007-2985.2014.01.016

journal6 ›› 2014, Vol. 35 ›› Issue (1): 68-71.DOI: 10.3969/j.issn.1007-2985.2014.01.016

新型中温离子导体复合膜：Sn_0.94Sc_0.06P₂O₇和聚四氟乙烯(PTFE)

王洪涛，孙林，董秋静，罗春华

（阜阳师范学院化学化工学院，安徽阜阳 236041）

出版日期:2014-01-25 发布日期:2014-01-25
作者简介:王洪涛（1979-），男，安徽亳州人，阜阳师范学院化学化工学院副教授，博士，主要从事无机固体电解质研究.
基金资助:
国家自然科学基金青年项目（50903018）；安徽高校省级自然科学研究项目（KJ2013B193）

Intermediate Temperature Ionic Conducting Composite Membrane:Sn_0.94Sc_0.06P₂O₇ and Polytetrafluoroethylene (PTFE)

WANG Hong-Tao, SUN Lin, DONG Qiu-Jing, LUO Chun-Hua

(College of Chemistry and Chemical Engineering,Fuyang Teachers’ College;Anhui Provincial Key Laboratory for Degradation and Monitoring of Pollution of the Environment,Fuyang 236041,Anhui China)

Online:2014-01-25 Published:2014-01-25

摘要/Abstract

摘要：采用固相法合成中温离子导体Sn_0.94Sc_0.06P₂O₇和聚四氟乙烯(PTFE)的复合膜，并进行XRD，SEM及DSC-TGA测试表征.用电化学工作站研究了复合膜在75~225 ℃下的导电特性.SEM分析结果表明复合膜具有良好的微观结构，XRD分析结果表明复合膜已形成了单相的SnP₂O₇立方相结构.气体气氛对复合膜电导率有显著的影响，σ (dry air)<σ(wet air)<σ(wet H2).该复合膜在湿润H2气氛中150 ℃下，电导率达到最大值6.5×10^-4 S·cm^-1.

关键词： SnP₂O₇, 复合膜, XRD, 电导率

Abstract: An intermediate temperature ionic conducting composite membrane,Sn_0.94Sc_0.06P₂O₇and polytetrafluoroethylene (PTFE),was prepared by solid-state reaction method.The obtained composite membrane was characterized by XRD,SEM and DSC-TGA.The conductivities of composite membrane was investigated by using electrochemical workstation at the range of 75~225 ℃.The microstructure indicated that the composite membrane was well-crystallized and very compact.XRD pattern indicated that the composite membrane exhibited a single cubic phase structure of SnP2O7.The experimental atmosphere remarkably influenced the conductivity in the order：σ(dry air)<σ(wet air)<σ(wet H2).The highest conductivity was observed to be 6.5×10^-4 S·cm^-1 for the composite membrane under wet H2 atmosphere at 150 ℃.

Key words: SnP2O7, composite membrane, XRD, conductivity

王洪涛, 孙林, 董秋静, 罗春华. 新型中温离子导体复合膜：Sn_0.94Sc_0.06P₂O₇和聚四氟乙烯(PTFE)[J]. journal6, 2014, 35(1): 68-71.

WANG Hong-Tao, SUN Lin, DONG Qiu-Jing, LUO Chun-Hua. Intermediate Temperature Ionic Conducting Composite Membrane:Sn_0.94Sc_0.06P₂O₇ and Polytetrafluoroethylene (PTFE)[J]. journal6, 2014, 35(1): 68-71.

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新型中温离子导体复合膜：Sn_0.94Sc_0.06P₂O₇和聚四氟乙烯(PTFE)

Intermediate Temperature Ionic Conducting Composite Membrane:Sn_0.94Sc_0.06P₂O₇ and Polytetrafluoroethylene (PTFE)

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