Patent ID: 8475921
Filing Date: 2013-07-02
Classification: B01D,B01J,B22F,B82Y,Y10T

Abstract:
1. A composite material comprising: an aggregate containing: a first metal particle constituting a core and having an average primary particle diameter ranging from 10 to 400 nm, the first metal particle being made of a first metal which has an ionization tendency equal to or smaller than an ionization tendency of Zn; and second metal oxide particulates directly contacting an outer surface of the first metal particle and having an average primary particle diameter ranging from 1 to 100 nm, the second metal oxide particulates being made of a second metal oxide which is at least one substance selected from the group consisting of oxides of La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Y, Zr, Fe, Ti, Al, Mg, Co, Ni, Mn, Cr, Mo, W, and V, solid solutions thereof, and composite oxides thereof.