| 摘要 |
PROBLEM TO BE SOLVED: To provide a catalyst for fuel cells, without using expensive Pt-based catalysts, and a fuel cell and a membrane electrode junction using the catalyst for fuel cells, without the Pt-based catalyst. SOLUTION: The catalyst for fuel cells is made of titanium boride. The fuel cell comprises a fuel electrode, an oxygen electrode, and solid polymer electrolyte membrane 16 between these fuel electrode and oxygen electrode. The membrane electrode junction comprises a fuel electrode catalyst layer 28, an oxygen electrode catalyst layer 26, and a solid polymer electrolyte membrane 16 between them. The fuel electrode and the fuel electrode catalyst layer are made of titanium boride, respectively. COPYRIGHT: (C)2006,JPO&NCIPI
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