Patent ID: 8568509
Filing Date: 2013-10-29
Classification: C01B,C01G,C01P,C22B,Y02P

Abstract:
1. A method of storing a metal component, comprising: heating a metal-containing material in the presence of a perovskite-type composite oxide represented by Composition formula (1), to store a metal component of the material in the perovskite-type composite oxide: wherein A represents at least one element selected from the group consisting of lanthanoid elements and Group 2 elements of the periodic table, and B represents at least one element selected from the group consisting of Group 3 elements, Group 4 elements, Group 13 elements, and transition metal elements of the fourth period of the periodic table; symbols a and b represent quantities of hydrogen and oxygen vacancies, respectively, and represent values within the range below, respectively: 0≦a≦1.0, 0≦b≦0.5, wherein the metal component is stored as an ion thereof, and wherein heating is performed such that the metal-containing material and the perovskite-type composite oxide are not in contact with each other.