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.
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