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

• Chemistry and chemical engineering • Previous Articles     Next Articles

Intermediate Temperature Ionic Conducting Composite Membrane:Sn0.94Sc0.06P2O7  and Polytetrafluoroethylene (PTFE)

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

  1. (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

Abstract: An intermediate temperature ionic conducting composite membrane,Sn0.94Sc0.06P2O7 and 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

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