Oxide-dispersed metal porous body, electrolysis electrode, and hydrogen generation apparatus

Abstract

The present invention provides an oxide-dispersed metal porous body including a porous metal framework, and oxide particles carried in the metal framework.

1 . An oxide-dispersed metal porous body comprising a porous metal framework, and oxide particles carried in the metal framework. 
     
     
         2 . The oxide-dispersed metal porous body according to  claim 1 , wherein the metal framework has a three-dimensional mesh structure. 
     
     
         3 . The oxide-dispersed metal porous body according to  claim 1 , wherein the oxide-dispersed metal porous body has a porosity of more than or equal to 70 volume %. 
     
     
         4 . The oxide-dispersed metal porous body according to  claim 1 , wherein the oxide-dispersed metal porous body has an aperture diameter of 100 μm to 2000 μm. 
     
     
         5 . The oxide-dispersed metal porous body according to  claim 1 , wherein the oxide particles are carried in the metal framework unevenly at a surface layer portion. 
     
     
         6 . The oxide-dispersed metal porous body according to  claim 1 , wherein the oxide particles have an average particle diameter of more than or equal to 0.1 μm and less than or equal to 10 μm. 
     
     
         7 . The oxide-dispersed metal porous body according to  claim 1 , wherein an external appearance of the oxide-dispersed metal porous body has a shape in a form of a sheet, and a mass per unit area of the shape is 200 g/m 2  to 1500 g/m 2 . 
     
     
         8 . The oxide-dispersed metal porous body according to  claim 1 , wherein an external appearance of the oxide-dispersed metal porous body has a shape in a form of a sheet, and an amount of the oxide particles carried per unit area of the shape is 10 g/m 2  to 100 g/m 2 . 
     
     
         9 . The oxide-dispersed metal porous body according to  claim 1 , wherein an external appearance of the oxide-dispersed metal porous body has a shape in a form of a sheet, and the shape has a thickness of 0.1 mm to 10 mm. 
     
     
         10 . The oxide-dispersed metal porous body according to  claim 1 , wherein each of the oxide particles includes at least one selected from a group consisting of iron oxide, nickel oxide, chromium oxide, titanium oxide, aluminum oxide, zirconium oxide, cerium oxide, cobalt oxide, molybdenum oxide, ruthenium oxide, iridium oxide, tin oxide, and silicon oxide. 
     
     
         11 . An electrolysis electrode comprising the oxide-dispersed metal porous body recited in  claim 1 . 
     
     
         12 . A hydrogen generation apparatus comprising:
 an electrolyzer configured to store an alkaline aqueous solution;   an anode and a cathode each immersed in the alkaline aqueous solution; and   a power supply configured to apply voltage between the anode and the cathode, wherein   at least one of the anode and the cathode is the electrolysis electrode recited in  claim 11 .   
     
     
         13 . A hydrogen generation apparatus comprising:
 an anode;   a cathode;   an electrolyte membrane disposed between the anode and the cathode; and   a power supply configured to apply voltage between the anode and the cathode, wherein   at least one of the anode and the cathode is the electrolysis electrode recited in  claim 11 .