| 摘要 |
PROBLEM TO BE SOLVED: To provide a titania-based material having a fibrous or tubular shape and high proton conductivity and scarcely degraded in the proton conductivity even in case of being used in water, and provide a method for producing the same. SOLUTION: This titania-based material contains at least La, Ti and O, and comprises a wiry crystal. This method for producing the titania-based material comprises a dissolving step of dissolving an La compound and a Ti compound in water to obtain a solution, and a coprecipitation step of precipitating the titania-based material comprising a wiry crystal containing at least La, Ti, P and O. COPYRIGHT: (C)2007,JPO&INPIT
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