【摘要】 本文合成了有机-无机复合电解质聚苯醚（PPO）/Sn_0.9Ga_0.1P₂O₇.XRD测试表明Sn_0.9Ga_0.1P₂O₇（SG10P）和PPO复合没有发生反应生成新物质,SEM图可以看出样品致密性良好.采用电化学工作站对SG10P-PPO的中温电性能（100³50℃）进行了研究.结果表明,SG10P-PPO在干燥氧气气氛中在300℃达到最大值8.5×10^-3S·cm^-1.SG10P-PPO在300℃开路电压下的电解质阻抗、极化阻抗分别为16.02Ω·cm²、2.41·cm².H₂/O₂燃料电池性能测试表明,在0.55 V时对应最大输出功率密度为38.3 mW cm^-2.更多还原

【Abstract】 Firstly,the new organic-inorganic composite electrolyte PPO/Sn_0.9Ga_0.1P₂O₇ was prepared.XRD shows that there are only peaks corresponding well to Sn_0.9Ga_0.1P₂O₇,without any formation of other substances.SEM images show that composite electrolyte is sufficiently dense.The intermediate temperature conduction behaviors were investigated by AC impedance spectroscopy in the temperature range of 100³50℃.The highest conductivity is observed to be8.5×10^-3S·cm^-1 for SG10 P-PPO in dry oxygen at 300℃.The ohmic resistance and interfacial polarization resistance of SG10P-PPO at 300℃under open circuit condition are 16.02Ω·cm² and 2.41Ω·cm²,correspondingly.The H₂/O₂ fuel cell generates the maximum power density of 38.3 mW·cm^-2 at 0.55V.更多还原