Sulfur is used in hybrid cycle electrolysis cell for producing hydrogen anode electrode material and

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PROBLEM TO BE SOLVED : To provide an inexpensive electrode material having high corrosion resistance, high conductivity and high catalytic activation capacity, and suitable for producing sulfur cycle hybrid hydrogen. SOLUTION : In cubic titanium oxide pyrochlore comprising a rare earth element(s) RE on an A site, the element(s) RE on the A site is a multiple oxide RE2-xTi2O7-δcomposed of one or more selected from the respective elements of Lu, Yb, Tm, Er, Ho, Y, Sc, Dy, Tb, Gd, Eu, Sm and Ce, the non-stoichiometric quantity x of the element(s) RE on the A site lies within the range of 0COPYRIGHT : (C)2006, JPO&NCIPI