Development of Electrolyte using Surface Proton Conduction of Nano Oxide and its Application to Fuel Cell

将水合硫酸化二氧化钛通过行星式珠磨粉碎，并与有机化合物如Nafion混合以制备用于燃料电池的电解质。此外，通过使用所制备的电解质实际进行燃料电池测试。在室温下，观察到约700 mV的电动势（EMF）。也就是说，通过该方法可以获得具有质子传导性的纳米二氧化钛/有机复合电解质。采用该复合电解质的燃料电池可获得高达4 mAcm ~（-2）的直流电流，证实了采用该复合电解质的燃料电池发电是可行的。通过交流阻抗测量和电流中断测量，发现电解质欧姆损失和电极过电位都很高。这些结果表明，必须通过进一步粉碎来进一步改善纳米二氧化钛的性能，并且必须选择除载铂碳之外的材料用于电极。

The hydrous sulfated titania was pulverized by the planetary bead milling, and was mixed with organic compounds such as Nafion to prepare the electrolyte for fuel cell. In addition, fuel cell test was actually performed by using the prepared electrolyte. At room temperature, the electromotive force(EMF) of about 700 mV was observed. That is, the nano' titania/organic composite electrolyte with proton conductivity can be obtained by this method. The direct current up to 4 mAcm' 2 could be applied to the fuel cell using the composite electrolyte, and it was confirmed that fuel cell power generation was actually possible by using the composite electrolyte.By the AC impedance measurement and current interruption measurement, it was found that both electrolyte ohmic loss and electrode overpotential were significantly high. These results suggest a necessity that the performance of nano' titania must be further improved by further pulverization and a material other than platinum loaded carbon must be chosen for the electrode.