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新型中温离子导体Sn0.97In0.03P2O7的电性能研究 被引量：2

Electrical Properties of Intermediate Temperature Ionic Conductor Sn_(0.97)In_(0.03)P_2O_7
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摘要 采用固相法合成了Sn0.97In0.03P2O7样品,并采用浓差电池、交流阻抗等电化学方法对该样品在50～250℃下的电性能进行了研究.结果表明,该样品在湿润H2气氛中,温度为175℃时,电导率达到最大值2.9×10-2 S·cm-1.水蒸气浓差电池结果表明,样品在湿润H2气氛下具有少量的氧离子导电性,而在湿润O2气氛下样品主要表现为质子导电.以该样品为固体电解质,组装氢/空气燃料电池,在125℃时最大输出功率密度为26.7 mW·cm-2,150℃时最大输出功率密度为29.0 mW·cm-2,175℃时最大输出功率密度为30.7 mW·cm-2. Abstract Sn0. 97 In0. 03 P2 07 was synthesized by a solid-state reaction method and the conduction behaviors were investigated by some electrochemical methods including AC impedance spectroscopy, gas concentration cells in the temperature range of 50--250℃. The highest conductivity was observed to he 2.9×10-2 S· cm-1 under wet H2 at- mosphere at 175 ℃ The result of water vapor concentration cell indicated that the sample has a few existence of oxide ionic conduction under wet H2 atmosphere and mainly protonic conduction under wet O2 atmosphere. The H2/air fuel cell using Sn0.97Sco.03P207 as an electrolyte generated a maximum power density of 26. 7 mW · cm-2 at 125 ℃, 29. 0 mW · cm-2 at 150℃ and 30. 7 mW · cm2 at 175℃, respectively.
作者 王洪涛 罗春华 邹影 金彦彦 陈昌梅
机构地区 阜阳师范学院化学化工学院
出处 《材料导报》 EI CAS CSCD 北大核心 2013年第20期33-35,共3页 Materials Reports
基金 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) 安徽环境污染物降解与监测省级实验室专项(2012HJJC06) 阜阳师范学院2012博士启动基金
关键词 Sn0 97In0 03P2O7 交流阻抗 电导率 燃料电池 Sno. 97 In0. 03 P2 07, AC impedance, conductivity, fuel cell
分类号 TQ133.3 [化学工程—无机化工] O614.33 [理学—无机化学]
  • 相关文献

参考文献8

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二级参考文献19

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共引文献9

同被引文献16

  • 1Fu X Z, Luo J L, Sanger A R, et al. Y-doped gaCeO3 a nanopowders as proton-conducting electrolyte materials for ethane fuel cells to co-generate ethylene and electricity[J]. J Power Sources, 2010,195(9) : 2659.
  • 2Wang H, Zhang H,Xiao G, et al. Ionic conduction in Snl x- Sc, P2 07 for intermediate temperature fuel cells [J]. J Power Sources, 2011,196(2) :683.
  • 3Wang H, Zhao D, Ding Z, et al. Electrical conduction in dense Mg2+-doped SnP2Or-SnOz composite ceramic for in- termediate temperature fuel cell[J]. J Power Sources,2013, 222(1) :467.
  • 4Jin Y, Shen Y, Hibino T. Proton conduction in metal pyro- phosphates (MPzO7) at intermediate temperatures [J]. J Mater Chem, 2010,20(4) : 6214.
  • 5Wang H, Sun L, Chen J, et al. Electrical conduction of dense Ga3+ -doped SnP2OT-SnO2 composite ceramic at inter- mediate temperatures [J]. Ceram Int,2014,40(2) : 3743.
  • 6Nagao M, Kamiya T, Heo P, et al. Proton conduction in In-doped SnP2 07 at intermediate temperatures [J]. J Elec- trochem Soc, 2006,153 (5) : A1604.
  • 7Lapina A, Chatzichristodoulou C, Hallinder J, et al. Electrical conductivity of titanium pyrophosphate between 100 and 400 ℃ : effect of sintering temperature and phosphorus content [ J ]. Journal of Solid State Electrochemistry, 2014, 18 ( 1 ) : 39.
  • 8Wang H, Zhang H, Xiao G, et al. Ionic conduction in Snl_xSexP207 for intermediate temperature fuel cells [ J]. Journal of Power Sources, 2011, 196(2) : 683.
  • 9Jin Y, Shen Y, Hibino T. Proton conduction in metal pyrophosphates(MP207 ) at intermediate temperatures [ J 1. Journal of Materials chemistry, 2010, 20(4) : 6214.
  • 10Wang H, Zhao D, Ding Z, et al. Electrical conduction in dense Mg2+- doped SnP2 07 -SnO2 composite ceramic for intermediate temperature fuel cell [ J]. Journal of Power Sources, 2013, 222( 1 ) : 467.

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材料导报
2013年 第20期

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