Patent ID: 8007691
Filing Date: 2011-08-30
Classification: C01G,C01P,H01M,Y02E

Abstract:
1. Fine transition metal oxide particles comprising, as main phase, a perovskite type structure as represented by the general formula ABO 3 , (where “A” denotes one or more elements selected from the group of lanthanum, strontium, cerium, calcium, yttrium, erbium, praseodymium, neodymium, samarium, europium, silicon, magnesium, barium, niobium, lead, bismuth, and antimony, “B” denotes one or more elements selected from the group of iron, cobalt, manganese, copper, titanium, chrome, nickel, and molybdenum) wherein the lattice constants of said fine oxide particles meet the following conditional equation (1): (where, “a” and “c” denote the minor-axis lengths of the perovskite type crystal while “b” denotes its major-axis length), and wherein said fine oxide particles contain a noble metal.